CynthiaProtector commented on issue #15962: ResNet18_v2 under the directory of 
/mxnet/example/gluon
URL: 
https://github.com/apache/incubator-mxnet/issues/15962#issuecomment-523516994
 
 
   The following is a sample of the training log:
   
   > 2019-08-21 12:23:33,543 INFO Namespace(batch_norm=False, batch_size=32, 
dataset='cifar10', epochs=200, kvstore='device', log_interval=50, lr=0.1, 
lr_factor=0.1, lr_step_epochs='80,120', mode='symbolic', model='resnet18_v2', 
momentum=0.9, num_examples=50000, num_gpus=4, num_workers=1, optimizer='sgd', 
seed=123, train_data='', use_pretrained=False, use_thumbnail=False, 
val_data='', wd=0.0001)
   > 2019-08-21 12:23:49,109 INFO =============== Changing the global learning 
rate =================
   > 2019-08-21 12:23:49,109 INFO 
===================================================================
   > 2019-08-21 12:24:33,668 INFO Epoch[0] Batch [50]   Speed: 590.59 
samples/sec       accuracy=0.211397
   > 2019-08-21 12:24:44,679 INFO Epoch[0] Batch [100]  Speed: 581.25 
samples/sec       accuracy=0.270625
   > 2019-08-21 12:24:55,786 INFO Epoch[0] Batch [150]  Speed: 576.24 
samples/sec       accuracy=0.315156
   > 2019-08-21 12:25:06,760 INFO Epoch[0] Batch [200]  Speed: 583.23 
samples/sec       accuracy=0.362812
   > 2019-08-21 12:25:17,796 INFO Epoch[0] Batch [250]  Speed: 579.94 
samples/sec       accuracy=0.377812
   > 2019-08-21 12:25:28,772 INFO Epoch[0] Batch [300]  Speed: 583.12 
samples/sec       accuracy=0.413906
   > 2019-08-21 12:25:39,790 INFO Epoch[0] Batch [350]  Speed: 580.83 
samples/sec       accuracy=0.422500
   > 2019-08-21 12:25:48,608 INFO Epoch[0] Train-accuracy=0.441992
   > 2019-08-21 12:25:48,609 INFO Epoch[0] Time cost=86.588
   > 2019-08-21 12:25:49,821 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0001.params"
   > 2019-08-21 12:25:53,679 INFO Epoch[0] Validation-accuracy=0.453125
   > 2019-08-21 12:26:04,903 INFO Epoch[1] Batch [50]   Speed: 578.84 
samples/sec       accuracy=0.452053
   > 2019-08-21 12:26:15,890 INFO Epoch[1] Batch [100]  Speed: 582.55 
samples/sec       accuracy=0.472500
   > 2019-08-21 12:26:26,949 INFO Epoch[1] Batch [150]  Speed: 578.72 
samples/sec       accuracy=0.477187
   > 2019-08-21 12:26:37,900 INFO Epoch[1] Batch [200]  Speed: 584.44 
samples/sec       accuracy=0.494531
   > 2019-08-21 12:26:48,954 INFO Epoch[1] Batch [250]  Speed: 579.02 
samples/sec       accuracy=0.490000
   > 2019-08-21 12:26:59,934 INFO Epoch[1] Batch [300]  Speed: 582.87 
samples/sec       accuracy=0.517656
   > 2019-08-21 12:27:10,943 INFO Epoch[1] Batch [350]  Speed: 581.35 
samples/sec       accuracy=0.525781
   > 2019-08-21 12:27:19,730 INFO Epoch[1] Train-accuracy=0.521484
   > 2019-08-21 12:27:19,731 INFO Epoch[1] Time cost=86.046
   > 2019-08-21 12:27:20,175 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0002.params"
   > 2019-08-21 12:27:23,861 INFO Epoch[1] Validation-accuracy=0.521134
   > 2019-08-21 12:27:35,069 INFO Epoch[2] Batch [50]   Speed: 579.56 
samples/sec       accuracy=0.540135
   > 2019-08-21 12:27:46,034 INFO Epoch[2] Batch [100]  Speed: 583.65 
samples/sec       accuracy=0.557656
   > 2019-08-21 12:27:57,058 INFO Epoch[2] Batch [150]  Speed: 580.57 
samples/sec       accuracy=0.567344
   > 2019-08-21 12:28:08,046 INFO Epoch[2] Batch [200]  Speed: 582.47 
samples/sec       accuracy=0.559375
   > 2019-08-21 12:28:19,084 INFO Epoch[2] Batch [250]  Speed: 579.87 
samples/sec       accuracy=0.576562
   > 2019-08-21 12:28:30,016 INFO Epoch[2] Batch [300]  Speed: 585.44 
samples/sec       accuracy=0.587656
   > 2019-08-21 12:28:40,986 INFO Epoch[2] Batch [350]  Speed: 583.43 
samples/sec       accuracy=0.602812
   > 2019-08-21 12:28:49,554 INFO Epoch[2] Train-accuracy=0.589944
   > 2019-08-21 12:28:49,554 INFO Epoch[2] Time cost=85.688
   > 2019-08-21 12:28:50,124 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0003.params"
   > 2019-08-21 12:28:53,842 INFO Epoch[2] Validation-accuracy=0.566106
   > 2019-08-21 12:29:05,046 INFO Epoch[3] Batch [50]   Speed: 580.29 
samples/sec       accuracy=0.600184
   > 2019-08-21 12:29:16,037 INFO Epoch[3] Batch [100]  Speed: 582.32 
samples/sec       accuracy=0.619375
   > 2019-08-21 12:29:27,059 INFO Epoch[3] Batch [150]  Speed: 580.66 
samples/sec       accuracy=0.617812
   > 2019-08-21 12:29:38,037 INFO Epoch[3] Batch [200]  Speed: 583.01 
samples/sec       accuracy=0.627188
   > 2019-08-21 12:29:49,074 INFO Epoch[3] Batch [250]  Speed: 579.88 
samples/sec       accuracy=0.632656
   > 2019-08-21 12:30:00,027 INFO Epoch[3] Batch [300]  Speed: 584.34 
samples/sec       accuracy=0.638437
   > 2019-08-21 12:30:10,987 INFO Epoch[3] Batch [350]  Speed: 583.99 
samples/sec       accuracy=0.653594
   > 2019-08-21 12:30:19,793 INFO Epoch[3] Train-accuracy=0.651758
   > 2019-08-21 12:30:19,793 INFO Epoch[3] Time cost=85.945
   > 2019-08-21 12:30:20,306 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0004.params"
   > 2019-08-21 12:30:23,991 INFO Epoch[3] Validation-accuracy=0.615685
   > 2019-08-21 12:30:35,210 INFO Epoch[4] Batch [50]   Speed: 578.68 
samples/sec       accuracy=0.652880
   > 2019-08-21 12:30:46,182 INFO Epoch[4] Batch [100]  Speed: 583.32 
samples/sec       accuracy=0.667656
   > 2019-08-21 12:30:57,237 INFO Epoch[4] Batch [150]  Speed: 578.96 
samples/sec       accuracy=0.671406
   > 2019-08-21 12:31:08,167 INFO Epoch[4] Batch [200]  Speed: 585.56 
samples/sec       accuracy=0.665781
   > 2019-08-21 12:31:19,217 INFO Epoch[4] Batch [250]  Speed: 579.22 
samples/sec       accuracy=0.677031
   > 2019-08-21 12:31:30,184 INFO Epoch[4] Batch [300]  Speed: 583.57 
samples/sec       accuracy=0.675781
   > 2019-08-21 12:31:41,163 INFO Epoch[4] Batch [350]  Speed: 582.96 
samples/sec       accuracy=0.685312
   > 2019-08-21 12:31:49,925 INFO Epoch[4] Train-accuracy=0.679688
   > 2019-08-21 12:31:49,925 INFO Epoch[4] Time cost=85.929
   > 2019-08-21 12:31:50,364 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0005.params"
   > 2019-08-21 12:31:54,047 INFO Epoch[4] Validation-accuracy=0.648438
   > 2019-08-21 12:32:05,266 INFO Epoch[5] Batch [50]   Speed: 578.44 
samples/sec       accuracy=0.688725
   > 2019-08-21 12:32:16,198 INFO Epoch[5] Batch [100]  Speed: 585.44 
samples/sec       accuracy=0.692187
   > 2019-08-21 12:32:27,238 INFO Epoch[5] Batch [150]  Speed: 579.71 
samples/sec       accuracy=0.697812
   > 2019-08-21 12:32:38,180 INFO Epoch[5] Batch [200]  Speed: 584.93 
samples/sec       accuracy=0.703594
   > 2019-08-21 12:32:49,205 INFO Epoch[5] Batch [250]  Speed: 580.51 
samples/sec       accuracy=0.711719
   > 2019-08-21 12:33:00,140 INFO Epoch[5] Batch [300]  Speed: 585.31 
samples/sec       accuracy=0.715938
   > 2019-08-21 12:33:11,119 INFO Epoch[5] Batch [350]  Speed: 582.95 
samples/sec       accuracy=0.713125
   > 2019-08-21 12:33:19,656 INFO Epoch[5] Train-accuracy=0.712340
   > 2019-08-21 12:33:19,656 INFO Epoch[5] Time cost=85.601
   > 2019-08-21 12:33:20,204 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0006.params"
   > 2019-08-21 12:33:23,899 INFO Epoch[5] Validation-accuracy=0.670373
   > 2019-08-21 12:33:35,099 INFO Epoch[6] Batch [50]   Speed: 580.23 
samples/sec       accuracy=0.709252
   > 2019-08-21 12:33:46,060 INFO Epoch[6] Batch [100]  Speed: 583.89 
samples/sec       accuracy=0.719531
   > 2019-08-21 12:33:57,063 INFO Epoch[6] Batch [150]  Speed: 581.67 
samples/sec       accuracy=0.724219
   > 2019-08-21 12:34:08,034 INFO Epoch[6] Batch [200]  Speed: 583.38 
samples/sec       accuracy=0.724844
   > 2019-08-21 12:34:19,036 INFO Epoch[6] Batch [250]  Speed: 581.72 
samples/sec       accuracy=0.734219
   > 2019-08-21 12:34:30,006 INFO Epoch[6] Batch [300]  Speed: 583.47 
samples/sec       accuracy=0.738281
   > 2019-08-21 12:34:41,003 INFO Epoch[6] Batch [350]  Speed: 581.97 
samples/sec       accuracy=0.742344
   > 2019-08-21 12:34:49,735 INFO Epoch[6] Train-accuracy=0.732812
   > 2019-08-21 12:34:49,735 INFO Epoch[6] Time cost=85.831
   > 2019-08-21 12:34:50,240 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0007.params"
   > 2019-08-21 12:34:53,930 INFO Epoch[6] Validation-accuracy=0.687901
   > 2019-08-21 12:35:05,096 INFO Epoch[7] Batch [50]   Speed: 583.06 
samples/sec       accuracy=0.716912
   > 2019-08-21 12:35:16,046 INFO Epoch[7] Batch [100]  Speed: 584.47 
samples/sec       accuracy=0.729375
   > 2019-08-21 12:35:27,088 INFO Epoch[7] Batch [150]  Speed: 579.63 
samples/sec       accuracy=0.742188
   > 2019-08-21 12:35:38,018 INFO Epoch[7] Batch [200]  Speed: 585.56 
samples/sec       accuracy=0.745625
   > 2019-08-21 12:35:49,040 INFO Epoch[7] Batch [250]  Speed: 580.69 
samples/sec       accuracy=0.764062
   > 2019-08-21 12:35:59,982 INFO Epoch[7] Batch [300]  Speed: 584.91 
samples/sec       accuracy=0.761719
   > 2019-08-21 12:36:10,947 INFO Epoch[7] Batch [350]  Speed: 583.71 
samples/sec       accuracy=0.760000
   > 2019-08-21 12:36:19,387 INFO Epoch[7] Train-accuracy=0.760817
   > 2019-08-21 12:36:19,388 INFO Epoch[7] Time cost=85.454
   > 2019-08-21 12:36:19,901 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0008.params"
   > 2019-08-21 12:36:23,504 INFO Epoch[7] Validation-accuracy=0.708734
   > 2019-08-21 12:36:34,802 INFO Epoch[8] Batch [50]   Speed: 579.03 
samples/sec       accuracy=0.751685
   > 2019-08-21 12:36:45,745 INFO Epoch[8] Batch [100]  Speed: 584.87 
samples/sec       accuracy=0.763125
   > 2019-08-21 12:36:56,801 INFO Epoch[8] Batch [150]  Speed: 578.91 
samples/sec       accuracy=0.756250
   > 2019-08-21 12:37:07,758 INFO Epoch[8] Batch [200]  Speed: 584.10 
samples/sec       accuracy=0.768437
   > 2019-08-21 12:37:18,763 INFO Epoch[8] Batch [250]  Speed: 581.62 
samples/sec       accuracy=0.769219
   > 2019-08-21 12:37:29,701 INFO Epoch[8] Batch [300]  Speed: 585.11 
samples/sec       accuracy=0.770781
   > 2019-08-21 12:37:40,623 INFO Epoch[8] Batch [350]  Speed: 585.97 
samples/sec       accuracy=0.774844
   > 2019-08-21 12:37:49,407 INFO Epoch[8] Train-accuracy=0.778906
   > 2019-08-21 12:37:49,407 INFO Epoch[8] Time cost=85.892
   > 2019-08-21 12:37:50,179 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0009.params"
   > 2019-08-21 12:37:54,031 INFO Epoch[8] Validation-accuracy=0.716871
   > 2019-08-21 12:38:05,232 INFO Epoch[9] Batch [50]   Speed: 580.40 
samples/sec       accuracy=0.768382
   > 2019-08-21 12:38:16,176 INFO Epoch[9] Batch [100]  Speed: 584.83 
samples/sec       accuracy=0.778594
   > 2019-08-21 12:38:27,198 INFO Epoch[9] Batch [150]  Speed: 580.69 
samples/sec       accuracy=0.767188
   > 2019-08-21 12:38:38,144 INFO Epoch[9] Batch [200]  Speed: 584.70 
samples/sec       accuracy=0.776094
   > 2019-08-21 12:38:49,195 INFO Epoch[9] Batch [250]  Speed: 579.16 
samples/sec       accuracy=0.791094
   > 2019-08-21 12:39:00,144 INFO Epoch[9] Batch [300]  Speed: 584.51 
samples/sec       accuracy=0.790312
   > 2019-08-21 12:39:11,131 INFO Epoch[9] Batch [350]  Speed: 582.58 
samples/sec       accuracy=0.793281
   > 2019-08-21 12:39:19,856 INFO Epoch[9] Train-accuracy=0.789258
   > 2019-08-21 12:39:19,856 INFO Epoch[9] Time cost=85.819
   > 2019-08-21 12:39:20,397 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0010.params"
   > 2019-08-21 12:39:24,108 INFO Epoch[9] Validation-accuracy=0.724760
   > 2019-08-21 12:39:35,289 INFO Epoch[10] Batch [50]  Speed: 582.10 
samples/sec       accuracy=0.783548
   > 2019-08-21 12:39:46,202 INFO Epoch[10] Batch [100] Speed: 586.50 
samples/sec       accuracy=0.792500
   > 2019-08-21 12:39:57,223 INFO Epoch[10] Batch [150] Speed: 580.72 
samples/sec       accuracy=0.788281
   > 2019-08-21 12:40:08,162 INFO Epoch[10] Batch [200] Speed: 585.05 
samples/sec       accuracy=0.789062
   > 2019-08-21 12:40:19,202 INFO Epoch[10] Batch [250] Speed: 579.74 
samples/sec       accuracy=0.806250
   > 2019-08-21 12:40:30,149 INFO Epoch[10] Batch [300] Speed: 584.66 
samples/sec       accuracy=0.806875
   > 2019-08-21 12:40:41,089 INFO Epoch[10] Batch [350] Speed: 585.04 
samples/sec       accuracy=0.811406
   > 2019-08-21 12:40:49,628 INFO Epoch[10] Train-accuracy=0.803486
   > 2019-08-21 12:40:49,629 INFO Epoch[10] Time cost=85.516
   > 2019-08-21 12:40:50,167 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0011.params"
   > 2019-08-21 12:40:53,845 INFO Epoch[10] Validation-accuracy=0.724259
   > 2019-08-21 12:41:05,046 INFO Epoch[11] Batch [50]  Speed: 579.67 
samples/sec       accuracy=0.800398
   > 2019-08-21 12:41:15,972 INFO Epoch[11] Batch [100] Speed: 585.76 
samples/sec       accuracy=0.801406
   > 2019-08-21 12:41:26,993 INFO Epoch[11] Batch [150] Speed: 580.72 
samples/sec       accuracy=0.801250
   > 2019-08-21 12:41:37,929 INFO Epoch[11] Batch [200] Speed: 585.26 
samples/sec       accuracy=0.807813
   > 2019-08-21 12:41:48,959 INFO Epoch[11] Batch [250] Speed: 580.22 
samples/sec       accuracy=0.818281
   > 2019-08-21 12:41:59,929 INFO Epoch[11] Batch [300] Speed: 583.51 
samples/sec       accuracy=0.816875
   > 2019-08-21 12:42:10,861 INFO Epoch[11] Batch [350] Speed: 585.44 
samples/sec       accuracy=0.815781
   > 2019-08-21 12:42:19,618 INFO Epoch[11] Train-accuracy=0.818750
   > 2019-08-21 12:42:19,618 INFO Epoch[11] Time cost=85.767
   > 2019-08-21 12:42:20,101 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0012.params"
   > 2019-08-21 12:42:23,786 INFO Epoch[11] Validation-accuracy=0.731971
   > 2019-08-21 12:42:35,004 INFO Epoch[12] Batch [50]  Speed: 579.01 
samples/sec       accuracy=0.811734
   > 2019-08-21 12:42:45,924 INFO Epoch[12] Batch [100] Speed: 586.10 
samples/sec       accuracy=0.816406
   > 2019-08-21 12:42:56,958 INFO Epoch[12] Batch [150] Speed: 580.03 
samples/sec       accuracy=0.811250
   > 2019-08-21 12:43:07,893 INFO Epoch[12] Batch [200] Speed: 585.31 
samples/sec       accuracy=0.817031
   > 2019-08-21 12:43:18,902 INFO Epoch[12] Batch [250] Speed: 581.37 
samples/sec       accuracy=0.827344
   > 2019-08-21 12:43:29,849 INFO Epoch[12] Batch [300] Speed: 584.66 
samples/sec       accuracy=0.825937
   > 2019-08-21 12:43:40,806 INFO Epoch[12] Batch [350] Speed: 584.12 
samples/sec       accuracy=0.831250
   > 2019-08-21 12:43:49,553 INFO Epoch[12] Train-accuracy=0.831055
   > 2019-08-21 12:43:49,553 INFO Epoch[12] Time cost=85.763
   > 2019-08-21 12:43:50,034 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0013.params"
   > 2019-08-21 12:43:53,737 INFO Epoch[12] Validation-accuracy=0.727364
   > 2019-08-21 12:44:04,941 INFO Epoch[13] Batch [50]  Speed: 580.42 
samples/sec       accuracy=0.823683
   > 2019-08-21 12:44:15,890 INFO Epoch[13] Batch [100] Speed: 584.51 
samples/sec       accuracy=0.825937
   > 2019-08-21 12:44:26,919 INFO Epoch[13] Batch [150] Speed: 580.34 
samples/sec       accuracy=0.822969
   > 2019-08-21 12:44:37,847 INFO Epoch[13] Batch [200] Speed: 585.64 
samples/sec       accuracy=0.837031
   > 2019-08-21 12:44:48,868 INFO Epoch[13] Batch [250] Speed: 580.75 
samples/sec       accuracy=0.839063
   > 2019-08-21 12:44:59,788 INFO Epoch[13] Batch [300] Speed: 586.11 
samples/sec       accuracy=0.840000
   > 2019-08-21 12:45:10,742 INFO Epoch[13] Batch [350] Speed: 584.25 
samples/sec       accuracy=0.835156
   > 2019-08-21 12:45:19,295 INFO Epoch[13] Train-accuracy=0.828726
   > 2019-08-21 12:45:19,295 INFO Epoch[13] Time cost=85.553
   > 2019-08-21 12:45:19,764 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0014.params"
   > 2019-08-21 12:45:23,450 INFO Epoch[13] Validation-accuracy=0.736579
   > 2019-08-21 12:45:34,647 INFO Epoch[14] Batch [50]  Speed: 581.00 
samples/sec       accuracy=0.839001
   > 2019-08-21 12:45:45,589 INFO Epoch[14] Batch [100] Speed: 584.92 
samples/sec       accuracy=0.834219
   > 2019-08-21 12:45:56,616 INFO Epoch[14] Batch [150] Speed: 580.39 
samples/sec       accuracy=0.828906
   > 2019-08-21 12:46:07,526 INFO Epoch[14] Batch [200] Speed: 586.61 
samples/sec       accuracy=0.840469
   > 2019-08-21 12:46:18,562 INFO Epoch[14] Batch [250] Speed: 579.95 
samples/sec       accuracy=0.848125
   > 2019-08-21 12:46:29,527 INFO Epoch[14] Batch [300] Speed: 583.71 
samples/sec       accuracy=0.850938
   > 2019-08-21 12:46:40,491 INFO Epoch[14] Batch [350] Speed: 583.75 
samples/sec       accuracy=0.853437
   > 2019-08-21 12:46:49,256 INFO Epoch[14] Train-accuracy=0.848047
   > 2019-08-21 12:46:49,256 INFO Epoch[14] Time cost=85.802
   > 2019-08-21 12:46:49,740 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0015.params"
   > 2019-08-21 12:46:53,400 INFO Epoch[14] Validation-accuracy=0.726262
   > 2019-08-21 12:47:04,611 INFO Epoch[15] Batch [50]  Speed: 580.19 
samples/sec       accuracy=0.840839
   > 2019-08-21 12:47:15,528 INFO Epoch[15] Batch [100] Speed: 586.26 
samples/sec       accuracy=0.834531
   > 2019-08-21 12:47:26,574 INFO Epoch[15] Batch [150] Speed: 579.42 
samples/sec       accuracy=0.843281
   > 2019-08-21 12:47:37,525 INFO Epoch[15] Batch [200] Speed: 584.46 
samples/sec       accuracy=0.847187
   > 2019-08-21 12:47:48,546 INFO Epoch[15] Batch [250] Speed: 580.70 
samples/sec       accuracy=0.851094
   > 2019-08-21 12:47:59,502 INFO Epoch[15] Batch [300] Speed: 584.16 
samples/sec       accuracy=0.862344
   > 2019-08-21 12:48:10,448 INFO Epoch[15] Batch [350] Speed: 584.73 
samples/sec       accuracy=0.846094
   > 2019-08-21 12:48:18,906 INFO Epoch[15] Train-accuracy=0.855569
   > 2019-08-21 12:48:18,906 INFO Epoch[15] Time cost=85.500
   > 2019-08-21 12:48:19,532 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0016.params"
   > 2019-08-21 12:48:23,131 INFO Epoch[15] Validation-accuracy=0.742588
   > 2019-08-21 12:48:34,383 INFO Epoch[16] Batch [50]  Speed: 582.89 
samples/sec       accuracy=0.855239
   > 2019-08-21 12:48:45,333 INFO Epoch[16] Batch [100] Speed: 584.49 
samples/sec       accuracy=0.847500
   > 2019-08-21 12:48:56,372 INFO Epoch[16] Batch [150] Speed: 579.81 
samples/sec       accuracy=0.845000
   > 2019-08-21 12:49:07,323 INFO Epoch[16] Batch [200] Speed: 584.42 
samples/sec       accuracy=0.857187
   > 2019-08-21 12:49:18,373 INFO Epoch[16] Batch [250] Speed: 579.19 
samples/sec       accuracy=0.864531
   > 2019-08-21 12:49:29,332 INFO Epoch[16] Batch [300] Speed: 584.00 
samples/sec       accuracy=0.861406
   > 2019-08-21 12:49:40,270 INFO Epoch[16] Batch [350] Speed: 585.13 
samples/sec       accuracy=0.865781
   > 2019-08-21 12:49:49,038 INFO Epoch[16] Train-accuracy=0.857617
   > 2019-08-21 12:49:49,038 INFO Epoch[16] Time cost=85.898
   > 2019-08-21 12:49:49,510 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0017.params"
   > 2019-08-21 12:49:53,309 INFO Epoch[16] Validation-accuracy=0.740704
   > 2019-08-21 12:50:04,502 INFO Epoch[17] Batch [50]  Speed: 580.50 
samples/sec       accuracy=0.860600
   > 2019-08-21 12:50:15,471 INFO Epoch[17] Batch [100] Speed: 583.53 
samples/sec       accuracy=0.855000
   > 2019-08-21 12:50:26,486 INFO Epoch[17] Batch [150] Speed: 581.02 
samples/sec       accuracy=0.861719
   > 2019-08-21 12:50:37,433 INFO Epoch[17] Batch [200] Speed: 584.64 
samples/sec       accuracy=0.864219
   > 2019-08-21 12:50:48,476 INFO Epoch[17] Batch [250] Speed: 579.57 
samples/sec       accuracy=0.864219
   > 2019-08-21 12:50:59,417 INFO Epoch[17] Batch [300] Speed: 584.98 
samples/sec       accuracy=0.865156
   > 2019-08-21 12:51:10,373 INFO Epoch[17] Batch [350] Speed: 584.19 
samples/sec       accuracy=0.875469
   > 2019-08-21 12:51:19,146 INFO Epoch[17] Train-accuracy=0.863477
   > 2019-08-21 12:51:19,146 INFO Epoch[17] Time cost=85.832
   > 2019-08-21 12:51:19,609 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0018.params"
   > 2019-08-21 12:51:23,293 INFO Epoch[17] Validation-accuracy=0.733874
   > 2019-08-21 12:51:34,479 INFO Epoch[18] Batch [50]  Speed: 580.58 
samples/sec       accuracy=0.865349
   > 2019-08-21 12:51:45,434 INFO Epoch[18] Batch [100] Speed: 584.26 
samples/sec       accuracy=0.869844
   > 2019-08-21 12:51:56,451 INFO Epoch[18] Batch [150] Speed: 580.92 
samples/sec       accuracy=0.862344
   > 2019-08-21 12:52:07,423 INFO Epoch[18] Batch [200] Speed: 583.29 
samples/sec       accuracy=0.868125
   > 2019-08-21 12:52:18,443 INFO Epoch[18] Batch [250] Speed: 580.81 
samples/sec       accuracy=0.876250
   > 2019-08-21 12:52:29,393 INFO Epoch[18] Batch [300] Speed: 584.46 
samples/sec       accuracy=0.875625
   > 2019-08-21 12:52:40,370 INFO Epoch[18] Batch [350] Speed: 583.08 
samples/sec       accuracy=0.877344
   > 2019-08-21 12:52:48,875 INFO Epoch[18] Train-accuracy=0.868590
   > 2019-08-21 12:52:48,875 INFO Epoch[18] Time cost=85.577
   > 2019-08-21 12:52:49,357 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0019.params"
   > 2019-08-21 12:52:53,026 INFO Epoch[18] Validation-accuracy=0.750200
   > 2019-08-21 12:53:04,200 INFO Epoch[19] Batch [50]  Speed: 581.95 
samples/sec       accuracy=0.870558
   > 2019-08-21 12:53:15,140 INFO Epoch[19] Batch [100] Speed: 585.01 
samples/sec       accuracy=0.877031
   > 2019-08-21 12:53:26,154 INFO Epoch[19] Batch [150] Speed: 581.09 
samples/sec       accuracy=0.869375
   > 2019-08-21 12:53:37,102 INFO Epoch[19] Batch [200] Speed: 584.59 
samples/sec       accuracy=0.881406
   > 2019-08-21 12:53:48,127 INFO Epoch[19] Batch [250] Speed: 580.54 
samples/sec       accuracy=0.878281
   > 2019-08-21 12:53:59,054 INFO Epoch[19] Batch [300] Speed: 585.71 
samples/sec       accuracy=0.880000
   > 2019-08-21 12:54:10,002 INFO Epoch[19] Batch [350] Speed: 584.61 
samples/sec       accuracy=0.877031
   > 2019-08-21 12:54:18,772 INFO Epoch[19] Train-accuracy=0.880078
   > 2019-08-21 12:54:18,772 INFO Epoch[19] Time cost=85.739
   > 2019-08-21 12:54:19,254 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0020.params"
   > 2019-08-21 12:54:22,932 INFO Epoch[19] Validation-accuracy=0.724659
   > 2019-08-21 12:54:34,097 INFO Epoch[20] Batch [50]  Speed: 581.07 
samples/sec       accuracy=0.878983
   > 2019-08-21 12:54:45,062 INFO Epoch[20] Batch [100] Speed: 583.68 
samples/sec       accuracy=0.877969
   > 2019-08-21 12:54:56,105 INFO Epoch[20] Batch [150] Speed: 579.59 
samples/sec       accuracy=0.874375
   > 2019-08-21 12:55:07,027 INFO Epoch[20] Batch [200] Speed: 585.96 
samples/sec       accuracy=0.884844
   > 2019-08-21 12:55:18,060 INFO Epoch[20] Batch [250] Speed: 580.10 
samples/sec       accuracy=0.888125
   > 2019-08-21 12:55:29,018 INFO Epoch[20] Batch [300] Speed: 584.09 
samples/sec       accuracy=0.883906
   > 2019-08-21 12:55:40,011 INFO Epoch[20] Batch [350] Speed: 582.17 
samples/sec       accuracy=0.895000
   > 2019-08-21 12:55:48,731 INFO Epoch[20] Train-accuracy=0.881641
   > 2019-08-21 12:55:48,731 INFO Epoch[20] Time cost=85.792
   > 2019-08-21 12:55:49,281 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0021.params"
   > 2019-08-21 12:55:52,984 INFO Epoch[20] Validation-accuracy=0.744992
   > 2019-08-21 12:56:04,185 INFO Epoch[21] Batch [50]  Speed: 580.36 
samples/sec       accuracy=0.886336
   > 2019-08-21 12:56:15,112 INFO Epoch[21] Batch [100] Speed: 585.70 
samples/sec       accuracy=0.882812
   > 2019-08-21 12:56:26,115 INFO Epoch[21] Batch [150] Speed: 581.68 
samples/sec       accuracy=0.888281
   > 2019-08-21 12:56:37,037 INFO Epoch[21] Batch [200] Speed: 585.99 
samples/sec       accuracy=0.884062
   > 2019-08-21 12:56:48,058 INFO Epoch[21] Batch [250] Speed: 580.73 
samples/sec       accuracy=0.896406
   > 2019-08-21 12:56:59,013 INFO Epoch[21] Batch [300] Speed: 584.24 
samples/sec       accuracy=0.890938
   > 2019-08-21 12:57:09,987 INFO Epoch[21] Batch [350] Speed: 583.21 
samples/sec       accuracy=0.890312
   > 2019-08-21 12:57:18,512 INFO Epoch[21] Train-accuracy=0.892428
   > 2019-08-21 12:57:18,512 INFO Epoch[21] Time cost=85.523
   > 2019-08-21 12:57:19,347 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0022.params"
   > 2019-08-21 12:57:23,053 INFO Epoch[21] Validation-accuracy=0.749299
   > 2019-08-21 12:57:34,241 INFO Epoch[22] Batch [50]  Speed: 580.25 
samples/sec       accuracy=0.884957
   > 2019-08-21 12:57:45,200 INFO Epoch[22] Batch [100] Speed: 584.01 
samples/sec       accuracy=0.886875
   > 2019-08-21 12:57:56,241 INFO Epoch[22] Batch [150] Speed: 579.67 
samples/sec       accuracy=0.882812
   > 2019-08-21 12:58:07,194 INFO Epoch[22] Batch [200] Speed: 584.33 
samples/sec       accuracy=0.889062
   > 2019-08-21 12:58:18,214 INFO Epoch[22] Batch [250] Speed: 580.79 
samples/sec       accuracy=0.898281
   > 2019-08-21 12:58:29,138 INFO Epoch[22] Batch [300] Speed: 585.87 
samples/sec       accuracy=0.892344
   > 2019-08-21 12:58:40,155 INFO Epoch[22] Batch [350] Speed: 580.95 
samples/sec       accuracy=0.900625
   > 2019-08-21 12:58:48,865 INFO Epoch[22] Train-accuracy=0.901758
   > 2019-08-21 12:58:48,865 INFO Epoch[22] Time cost=85.806
   > 2019-08-21 12:58:49,397 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0023.params"
   > 2019-08-21 12:58:53,095 INFO Epoch[22] Validation-accuracy=0.757312
   > 2019-08-21 12:59:04,272 INFO Epoch[23] Batch [50]  Speed: 580.31 
samples/sec       accuracy=0.895987
   > 2019-08-21 12:59:15,205 INFO Epoch[23] Batch [100] Speed: 585.39 
samples/sec       accuracy=0.898594
   > 2019-08-21 12:59:26,268 INFO Epoch[23] Batch [150] Speed: 578.55 
samples/sec       accuracy=0.897656
   > 2019-08-21 12:59:37,168 INFO Epoch[23] Batch [200] Speed: 587.15 
samples/sec       accuracy=0.891406
   > 2019-08-21 12:59:48,190 INFO Epoch[23] Batch [250] Speed: 580.71 
samples/sec       accuracy=0.896250
   > 2019-08-21 12:59:59,152 INFO Epoch[23] Batch [300] Speed: 583.85 
samples/sec       accuracy=0.899844
   > 2019-08-21 13:00:10,146 INFO Epoch[23] Batch [350] Speed: 582.14 
samples/sec       accuracy=0.902031
   > 2019-08-21 13:00:18,597 INFO Epoch[23] Train-accuracy=0.899840
   > 2019-08-21 13:00:18,598 INFO Epoch[23] Time cost=85.496
   > 2019-08-21 13:00:19,240 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0024.params"
   > 2019-08-21 13:00:22,854 INFO Epoch[23] Validation-accuracy=0.739683
   > 2019-08-21 13:00:34,144 INFO Epoch[24] Batch [50]  Speed: 581.05 
samples/sec       accuracy=0.901654
   > 2019-08-21 13:00:45,086 INFO Epoch[24] Batch [100] Speed: 584.92 
samples/sec       accuracy=0.896875
   > 2019-08-21 13:00:56,116 INFO Epoch[24] Batch [150] Speed: 580.23 
samples/sec       accuracy=0.893437
   > 2019-08-21 13:01:07,063 INFO Epoch[24] Batch [200] Speed: 584.68 
samples/sec       accuracy=0.897500
   > 2019-08-21 13:01:18,059 INFO Epoch[24] Batch [250] Speed: 582.05 
samples/sec       accuracy=0.903906
   > 2019-08-21 13:01:28,999 INFO Epoch[24] Batch [300] Speed: 585.00 
samples/sec       accuracy=0.900469
   > 2019-08-21 13:01:39,941 INFO Epoch[24] Batch [350] Speed: 584.91 
samples/sec       accuracy=0.907813
   > 2019-08-21 13:01:48,723 INFO Epoch[24] Train-accuracy=0.906055
   > 2019-08-21 13:01:48,723 INFO Epoch[24] Time cost=85.859
   > 2019-08-21 13:01:49,403 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0025.params"
   > 2019-08-21 13:01:53,259 INFO Epoch[24] Validation-accuracy=0.750396
   > 2019-08-21 13:02:04,464 INFO Epoch[25] Batch [50]  Speed: 579.58 
samples/sec       accuracy=0.895833
   > 2019-08-21 13:02:15,385 INFO Epoch[25] Batch [100] Speed: 586.08 
samples/sec       accuracy=0.903125
   > 2019-08-21 13:02:26,377 INFO Epoch[25] Batch [150] Speed: 582.22 
samples/sec       accuracy=0.903281
   > 2019-08-21 13:02:37,324 INFO Epoch[25] Batch [200] Speed: 584.65 
samples/sec       accuracy=0.899531
   > 2019-08-21 13:02:48,341 INFO Epoch[25] Batch [250] Speed: 580.97 
samples/sec       accuracy=0.914375
   > 2019-08-21 13:02:59,275 INFO Epoch[25] Batch [300] Speed: 585.36 
samples/sec       accuracy=0.907344
   > 2019-08-21 13:03:10,257 INFO Epoch[25] Batch [350] Speed: 582.78 
samples/sec       accuracy=0.914687
   > 2019-08-21 13:03:19,005 INFO Epoch[25] Train-accuracy=0.910937
   > 2019-08-21 13:03:19,005 INFO Epoch[25] Time cost=85.740
   > 2019-08-21 13:03:19,531 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0026.params"
   > 2019-08-21 13:03:23,221 INFO Epoch[25] Validation-accuracy=0.758614
   > 2019-08-21 13:03:34,396 INFO Epoch[26] Batch [50]  Speed: 580.90 
samples/sec       accuracy=0.905178
   > 2019-08-21 13:03:45,319 INFO Epoch[26] Batch [100] Speed: 585.95 
samples/sec       accuracy=0.909062
   > 2019-08-21 13:03:56,335 INFO Epoch[26] Batch [150] Speed: 580.98 
samples/sec       accuracy=0.907656
   > 2019-08-21 13:04:07,262 INFO Epoch[26] Batch [200] Speed: 585.75 
samples/sec       accuracy=0.914375
   > 2019-08-21 13:04:18,270 INFO Epoch[26] Batch [250] Speed: 581.38 
samples/sec       accuracy=0.908906
   > 2019-08-21 13:04:29,215 INFO Epoch[26] Batch [300] Speed: 584.77 
samples/sec       accuracy=0.909844
   > 2019-08-21 13:04:40,174 INFO Epoch[26] Batch [350] Speed: 584.04 
samples/sec       accuracy=0.913438
   > 2019-08-21 13:04:48,697 INFO Epoch[26] Train-accuracy=0.911859
   > 2019-08-21 13:04:48,698 INFO Epoch[26] Time cost=85.470
   > 2019-08-21 13:04:49,254 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0027.params"
   > 2019-08-21 13:04:52,945 INFO Epoch[26] Validation-accuracy=0.751603
   > 2019-08-21 13:05:04,129 INFO Epoch[27] Batch [50]  Speed: 580.53 
samples/sec       accuracy=0.908241
   > 2019-08-21 13:05:15,048 INFO Epoch[27] Batch [100] Speed: 586.17 
samples/sec       accuracy=0.898594
   > 2019-08-21 13:05:26,077 INFO Epoch[27] Batch [150] Speed: 580.27 
samples/sec       accuracy=0.910469
   > 2019-08-21 13:05:36,989 INFO Epoch[27] Batch [200] Speed: 586.55 
samples/sec       accuracy=0.912656
   > 2019-08-21 13:05:48,014 INFO Epoch[27] Batch [250] Speed: 580.50 
samples/sec       accuracy=0.913906
   > 2019-08-21 13:05:58,948 INFO Epoch[27] Batch [300] Speed: 585.33 
samples/sec       accuracy=0.910625
   > 2019-08-21 13:06:09,832 INFO Epoch[27] Batch [350] Speed: 588.04 
samples/sec       accuracy=0.912344
   > 2019-08-21 13:06:18,635 INFO Epoch[27] Train-accuracy=0.921094
   > 2019-08-21 13:06:18,635 INFO Epoch[27] Time cost=85.684
   > 2019-08-21 13:06:19,284 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0028.params"
   > 2019-08-21 13:06:22,984 INFO Epoch[27] Validation-accuracy=0.742488
   > 2019-08-21 13:06:34,170 INFO Epoch[28] Batch [50]  Speed: 581.32 
samples/sec       accuracy=0.910080
   > 2019-08-21 13:06:45,104 INFO Epoch[28] Batch [100] Speed: 585.36 
samples/sec       accuracy=0.908281
   > 2019-08-21 13:06:56,117 INFO Epoch[28] Batch [150] Speed: 581.14 
samples/sec       accuracy=0.907813
   > 2019-08-21 13:07:07,066 INFO Epoch[28] Batch [200] Speed: 584.56 
samples/sec       accuracy=0.919219
   > 2019-08-21 13:07:18,061 INFO Epoch[28] Batch [250] Speed: 582.08 
samples/sec       accuracy=0.918438
   > 2019-08-21 13:07:29,009 INFO Epoch[28] Batch [300] Speed: 584.59 
samples/sec       accuracy=0.914687
   > 2019-08-21 13:07:39,979 INFO Epoch[28] Batch [350] Speed: 583.44 
samples/sec       accuracy=0.916250
   > 2019-08-21 13:07:48,711 INFO Epoch[28] Train-accuracy=0.912891
   > 2019-08-21 13:07:48,711 INFO Epoch[28] Time cost=85.724
   > 2019-08-21 13:07:49,214 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0029.params"
   > 2019-08-21 13:07:52,909 INFO Epoch[28] Validation-accuracy=0.732873
   > 2019-08-21 13:08:04,082 INFO Epoch[29] Batch [50]  Speed: 581.65 
samples/sec       accuracy=0.912531
   > 2019-08-21 13:08:15,026 INFO Epoch[29] Batch [100] Speed: 584.81 
samples/sec       accuracy=0.921406
   > 2019-08-21 13:08:26,020 INFO Epoch[29] Batch [150] Speed: 582.13 
samples/sec       accuracy=0.910156
   > 2019-08-21 13:08:36,960 INFO Epoch[29] Batch [200] Speed: 585.04 
samples/sec       accuracy=0.921875
   > 2019-08-21 13:08:47,984 INFO Epoch[29] Batch [250] Speed: 580.59 
samples/sec       accuracy=0.922031
   > 2019-08-21 13:08:58,895 INFO Epoch[29] Batch [300] Speed: 586.58 
samples/sec       accuracy=0.925156
   > 2019-08-21 13:09:09,868 INFO Epoch[29] Batch [350] Speed: 583.26 
samples/sec       accuracy=0.927969
   > 2019-08-21 13:09:18,392 INFO Epoch[29] Train-accuracy=0.922276
   > 2019-08-21 13:09:18,392 INFO Epoch[29] Time cost=85.479
   > 2019-08-21 13:09:18,849 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0030.params"
   > 2019-08-21 13:09:22,529 INFO Epoch[29] Validation-accuracy=0.746394
   > 2019-08-21 13:09:33,732 INFO Epoch[30] Batch [50]  Speed: 579.43 
samples/sec       accuracy=0.909773
   > 2019-08-21 13:09:44,657 INFO Epoch[30] Batch [100] Speed: 585.84 
samples/sec       accuracy=0.909531
   > 2019-08-21 13:09:55,672 INFO Epoch[30] Batch [150] Speed: 581.01 
samples/sec       accuracy=0.914219
   > 2019-08-21 13:10:06,605 INFO Epoch[30] Batch [200] Speed: 585.42 
samples/sec       accuracy=0.916719
   > 2019-08-21 13:10:17,620 INFO Epoch[30] Batch [250] Speed: 581.03 
samples/sec       accuracy=0.927500
   > 2019-08-21 13:10:28,544 INFO Epoch[30] Batch [300] Speed: 585.91 
samples/sec       accuracy=0.924063
   > 2019-08-21 13:10:39,507 INFO Epoch[30] Batch [350] Speed: 583.77 
samples/sec       accuracy=0.929219
   > 2019-08-21 13:10:48,254 INFO Epoch[30] Train-accuracy=0.924414
   > 2019-08-21 13:10:48,254 INFO Epoch[30] Time cost=85.720
   > 2019-08-21 13:10:48,787 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0031.params"
   > 2019-08-21 13:10:52,472 INFO Epoch[30] Validation-accuracy=0.738582
   > 2019-08-21 13:11:03,626 INFO Epoch[31] Batch [50]  Speed: 582.14 
samples/sec       accuracy=0.914675
   > 2019-08-21 13:11:14,554 INFO Epoch[31] Batch [100] Speed: 585.68 
samples/sec       accuracy=0.923125
   > 2019-08-21 13:11:25,537 INFO Epoch[31] Batch [150] Speed: 582.73 
samples/sec       accuracy=0.919375
   > 2019-08-21 13:11:36,467 INFO Epoch[31] Batch [200] Speed: 585.56 
samples/sec       accuracy=0.925469
   > 2019-08-21 13:11:47,488 INFO Epoch[31] Batch [250] Speed: 580.72 
samples/sec       accuracy=0.928281
   > 2019-08-21 13:11:58,413 INFO Epoch[31] Batch [300] Speed: 585.85 
samples/sec       accuracy=0.916250
   > 2019-08-21 13:12:09,392 INFO Epoch[31] Batch [350] Speed: 582.92 
samples/sec       accuracy=0.924375
   > 2019-08-21 13:12:17,790 INFO Epoch[31] Train-accuracy=0.922276
   > 2019-08-21 13:12:17,790 INFO Epoch[31] Time cost=85.312
   > 2019-08-21 13:12:18,251 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0032.params"
   > 2019-08-21 13:12:21,846 INFO Epoch[31] Validation-accuracy=0.753906
   > 2019-08-21 13:12:33,135 INFO Epoch[32] Batch [50]  Speed: 582.25 
samples/sec       accuracy=0.921109
   > 2019-08-21 13:12:44,022 INFO Epoch[32] Batch [100] Speed: 587.83 
samples/sec       accuracy=0.919844
   > 2019-08-21 13:12:55,064 INFO Epoch[32] Batch [150] Speed: 579.67 
samples/sec       accuracy=0.928750
   > 2019-08-21 13:13:05,961 INFO Epoch[32] Batch [200] Speed: 587.29 
samples/sec       accuracy=0.927188
   > 2019-08-21 13:13:16,996 INFO Epoch[32] Batch [250] Speed: 580.02 
samples/sec       accuracy=0.926875
   > 2019-08-21 13:13:27,920 INFO Epoch[32] Batch [300] Speed: 585.89 
samples/sec       accuracy=0.918750
   > 2019-08-21 13:13:38,811 INFO Epoch[32] Batch [350] Speed: 587.65 
samples/sec       accuracy=0.923594
   > 2019-08-21 13:13:47,611 INFO Epoch[32] Train-accuracy=0.929688
   > 2019-08-21 13:13:47,611 INFO Epoch[32] Time cost=85.755
   > 2019-08-21 13:13:48,079 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0033.params"
   > 2019-08-21 13:13:51,901 INFO Epoch[32] Validation-accuracy=0.743968
   > 2019-08-21 13:14:03,086 INFO Epoch[33] Batch [50]  Speed: 581.27 
samples/sec       accuracy=0.924786
   > 2019-08-21 13:14:14,016 INFO Epoch[33] Batch [100] Speed: 585.57 
samples/sec       accuracy=0.924219
   > 2019-08-21 13:14:25,013 INFO Epoch[33] Batch [150] Speed: 582.01 
samples/sec       accuracy=0.920937
   > 2019-08-21 13:14:35,984 INFO Epoch[33] Batch [200] Speed: 583.38 
samples/sec       accuracy=0.929531
   > 2019-08-21 13:14:46,980 INFO Epoch[33] Batch [250] Speed: 582.03 
samples/sec       accuracy=0.929531
   > 2019-08-21 13:14:57,938 INFO Epoch[33] Batch [300] Speed: 584.06 
samples/sec       accuracy=0.931250
   > 2019-08-21 13:15:08,901 INFO Epoch[33] Batch [350] Speed: 583.82 
samples/sec       accuracy=0.915937
   > 2019-08-21 13:15:17,649 INFO Epoch[33] Train-accuracy=0.928320
   > 2019-08-21 13:15:17,649 INFO Epoch[33] Time cost=85.742
   > 2019-08-21 13:15:18,236 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0034.params"
   > 2019-08-21 13:15:21,933 INFO Epoch[33] Validation-accuracy=0.747997
   > 2019-08-21 13:15:33,106 INFO Epoch[34] Batch [50]  Speed: 581.42 
samples/sec       accuracy=0.922335
   > 2019-08-21 13:15:44,009 INFO Epoch[34] Batch [100] Speed: 587.01 
samples/sec       accuracy=0.925625
   > 2019-08-21 13:15:54,997 INFO Epoch[34] Batch [150] Speed: 582.44 
samples/sec       accuracy=0.931406
   > 2019-08-21 13:16:05,947 INFO Epoch[34] Batch [200] Speed: 584.50 
samples/sec       accuracy=0.933438
   > 2019-08-21 13:16:16,959 INFO Epoch[34] Batch [250] Speed: 581.21 
samples/sec       accuracy=0.928438
   > 2019-08-21 13:16:27,881 INFO Epoch[34] Batch [300] Speed: 585.99 
samples/sec       accuracy=0.925781
   > 2019-08-21 13:16:38,843 INFO Epoch[34] Batch [350] Speed: 583.86 
samples/sec       accuracy=0.932187
   > 2019-08-21 13:16:47,366 INFO Epoch[34] Train-accuracy=0.934896
   > 2019-08-21 13:16:47,366 INFO Epoch[34] Time cost=85.428
   > 2019-08-21 13:16:47,969 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0035.params"
   > 2019-08-21 13:16:51,667 INFO Epoch[34] Validation-accuracy=0.753105
   > 2019-08-21 13:17:02,865 INFO Epoch[35] Batch [50]  Speed: 579.61 
samples/sec       accuracy=0.924479
   > 2019-08-21 13:17:13,764 INFO Epoch[35] Batch [100] Speed: 587.24 
samples/sec       accuracy=0.929531
   > 2019-08-21 13:17:24,809 INFO Epoch[35] Batch [150] Speed: 579.46 
samples/sec       accuracy=0.931250
   > 2019-08-21 13:17:35,731 INFO Epoch[35] Batch [200] Speed: 585.96 
samples/sec       accuracy=0.927969
   > 2019-08-21 13:17:46,757 INFO Epoch[35] Batch [250] Speed: 580.50 
samples/sec       accuracy=0.930937
   > 2019-08-21 13:17:57,705 INFO Epoch[35] Batch [300] Speed: 584.59 
samples/sec       accuracy=0.934844
   > 2019-08-21 13:18:08,623 INFO Epoch[35] Batch [350] Speed: 586.19 
samples/sec       accuracy=0.922500
   > 2019-08-21 13:18:17,409 INFO Epoch[35] Train-accuracy=0.933984
   > 2019-08-21 13:18:17,409 INFO Epoch[35] Time cost=85.737
   > 2019-08-21 13:18:17,915 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0036.params"
   > 2019-08-21 13:18:21,591 INFO Epoch[35] Validation-accuracy=0.760817
   > 2019-08-21 13:18:32,772 INFO Epoch[36] Batch [50]  Speed: 581.15 
samples/sec       accuracy=0.934436
   > 2019-08-21 13:18:43,703 INFO Epoch[36] Batch [100] Speed: 585.52 
samples/sec       accuracy=0.929375
   > 2019-08-21 13:18:54,706 INFO Epoch[36] Batch [150] Speed: 581.67 
samples/sec       accuracy=0.936406
   > 2019-08-21 13:19:05,606 INFO Epoch[36] Batch [200] Speed: 587.18 
samples/sec       accuracy=0.937031
   > 2019-08-21 13:19:16,628 INFO Epoch[36] Batch [250] Speed: 580.64 
samples/sec       accuracy=0.931406
   > 2019-08-21 13:19:27,534 INFO Epoch[36] Batch [300] Speed: 586.89 
samples/sec       accuracy=0.938594
   > 2019-08-21 13:19:38,524 INFO Epoch[36] Batch [350] Speed: 582.35 
samples/sec       accuracy=0.936719
   > 2019-08-21 13:19:47,222 INFO Epoch[36] Train-accuracy=0.933984
   > 2019-08-21 13:19:47,223 INFO Epoch[36] Time cost=85.625
   > 2019-08-21 13:19:47,830 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0037.params"
   > 2019-08-21 13:19:51,529 INFO Epoch[36] Validation-accuracy=0.763421
   > 2019-08-21 13:20:02,725 INFO Epoch[37] Batch [50]  Speed: 580.06 
samples/sec       accuracy=0.933517
   > 2019-08-21 13:20:13,654 INFO Epoch[37] Batch [100] Speed: 585.65 
samples/sec       accuracy=0.931719
   > 2019-08-21 13:20:24,668 INFO Epoch[37] Batch [150] Speed: 581.10 
samples/sec       accuracy=0.939219
   > 2019-08-21 13:20:35,573 INFO Epoch[37] Batch [200] Speed: 586.87 
samples/sec       accuracy=0.934531
   > 2019-08-21 13:20:46,627 INFO Epoch[37] Batch [250] Speed: 578.98 
samples/sec       accuracy=0.936250
   > 2019-08-21 13:20:57,524 INFO Epoch[37] Batch [300] Speed: 587.34 
samples/sec       accuracy=0.932187
   > 2019-08-21 13:21:08,517 INFO Epoch[37] Batch [350] Speed: 582.23 
samples/sec       accuracy=0.931250
   > 2019-08-21 13:21:17,035 INFO Epoch[37] Train-accuracy=0.933293
   > 2019-08-21 13:21:17,036 INFO Epoch[37] Time cost=85.501
   > 2019-08-21 13:21:17,587 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0038.params"
   > 2019-08-21 13:21:21,282 INFO Epoch[37] Validation-accuracy=0.759615
   > 2019-08-21 13:21:32,467 INFO Epoch[38] Batch [50]  Speed: 580.73 
samples/sec       accuracy=0.932751
   > 2019-08-21 13:21:43,409 INFO Epoch[38] Batch [100] Speed: 584.93 
samples/sec       accuracy=0.931719
   > 2019-08-21 13:21:54,391 INFO Epoch[38] Batch [150] Speed: 582.77 
samples/sec       accuracy=0.932656
   > 2019-08-21 13:22:05,360 INFO Epoch[38] Batch [200] Speed: 583.49 
samples/sec       accuracy=0.933438
   > 2019-08-21 13:22:16,372 INFO Epoch[38] Batch [250] Speed: 581.20 
samples/sec       accuracy=0.937813
   > 2019-08-21 13:22:27,315 INFO Epoch[38] Batch [300] Speed: 584.87 
samples/sec       accuracy=0.938281
   > 2019-08-21 13:22:38,278 INFO Epoch[38] Batch [350] Speed: 583.79 
samples/sec       accuracy=0.934844
   > 2019-08-21 13:22:47,024 INFO Epoch[38] Train-accuracy=0.934570
   > 2019-08-21 13:22:47,024 INFO Epoch[38] Time cost=85.736
   > 2019-08-21 13:22:47,494 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0039.params"
   > 2019-08-21 13:22:51,166 INFO Epoch[38] Validation-accuracy=0.763522
   > 2019-08-21 13:23:02,339 INFO Epoch[39] Batch [50]  Speed: 581.26 
samples/sec       accuracy=0.929688
   > 2019-08-21 13:23:13,272 INFO Epoch[39] Batch [100] Speed: 585.41 
samples/sec       accuracy=0.931406
   > 2019-08-21 13:23:24,288 INFO Epoch[39] Batch [150] Speed: 580.98 
samples/sec       accuracy=0.932344
   > 2019-08-21 13:23:35,219 INFO Epoch[39] Batch [200] Speed: 585.51 
samples/sec       accuracy=0.936719
   > 2019-08-21 13:23:46,243 INFO Epoch[39] Batch [250] Speed: 580.56 
samples/sec       accuracy=0.938125
   > 2019-08-21 13:23:57,180 INFO Epoch[39] Batch [300] Speed: 585.20 
samples/sec       accuracy=0.936562
   > 2019-08-21 13:24:08,136 INFO Epoch[39] Batch [350] Speed: 584.19 
samples/sec       accuracy=0.938594
   > 2019-08-21 13:24:16,586 INFO Epoch[39] Train-accuracy=0.934295
   > 2019-08-21 13:24:16,586 INFO Epoch[39] Time cost=85.413
   > 2019-08-21 13:24:17,169 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0040.params"
   > 2019-08-21 13:24:20,774 INFO Epoch[39] Validation-accuracy=0.754808
   > 2019-08-21 13:24:32,055 INFO Epoch[40] Batch [50]  Speed: 582.16 
samples/sec       accuracy=0.932751
   > 2019-08-21 13:24:42,988 INFO Epoch[40] Batch [100] Speed: 585.42 
samples/sec       accuracy=0.936875
   > 2019-08-21 13:24:54,011 INFO Epoch[40] Batch [150] Speed: 580.63 
samples/sec       accuracy=0.934375
   > 2019-08-21 13:25:04,936 INFO Epoch[40] Batch [200] Speed: 585.80 
samples/sec       accuracy=0.934063
   > 2019-08-21 13:25:15,958 INFO Epoch[40] Batch [250] Speed: 580.68 
samples/sec       accuracy=0.942969
   > 2019-08-21 13:25:26,899 INFO Epoch[40] Batch [300] Speed: 584.99 
samples/sec       accuracy=0.935781
   > 2019-08-21 13:25:37,821 INFO Epoch[40] Batch [350] Speed: 586.00 
samples/sec       accuracy=0.940469
   > 2019-08-21 13:25:46,573 INFO Epoch[40] Train-accuracy=0.935547
   > 2019-08-21 13:25:46,573 INFO Epoch[40] Time cost=85.788
   > 2019-08-21 13:25:47,115 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0041.params"
   > 2019-08-21 13:25:50,920 INFO Epoch[40] Validation-accuracy=0.750198
   > 2019-08-21 13:26:02,092 INFO Epoch[41] Batch [50]  Speed: 581.41 
samples/sec       accuracy=0.935509
   > 2019-08-21 13:26:13,030 INFO Epoch[41] Batch [100] Speed: 585.14 
samples/sec       accuracy=0.939531
   > 2019-08-21 13:26:24,029 INFO Epoch[41] Batch [150] Speed: 581.89 
samples/sec       accuracy=0.930937
   > 2019-08-21 13:26:34,972 INFO Epoch[41] Batch [200] Speed: 584.85 
samples/sec       accuracy=0.931250
   > 2019-08-21 13:26:45,984 INFO Epoch[41] Batch [250] Speed: 581.21 
samples/sec       accuracy=0.939531
   > 2019-08-21 13:26:56,900 INFO Epoch[41] Batch [300] Speed: 586.28 
samples/sec       accuracy=0.929063
   > 2019-08-21 13:27:07,884 INFO Epoch[41] Batch [350] Speed: 582.69 
samples/sec       accuracy=0.938906
   > 2019-08-21 13:27:16,606 INFO Epoch[41] Train-accuracy=0.935547
   > 2019-08-21 13:27:16,606 INFO Epoch[41] Time cost=85.680
   > 2019-08-21 13:27:17,068 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0042.params"
   > 2019-08-21 13:27:20,741 INFO Epoch[41] Validation-accuracy=0.760417
   > 2019-08-21 13:27:31,943 INFO Epoch[42] Batch [50]  Speed: 579.52 
samples/sec       accuracy=0.940257
   > 2019-08-21 13:27:42,877 INFO Epoch[42] Batch [100] Speed: 585.32 
samples/sec       accuracy=0.933438
   > 2019-08-21 13:27:53,909 INFO Epoch[42] Batch [150] Speed: 580.14 
samples/sec       accuracy=0.932031
   > 2019-08-21 13:28:04,837 INFO Epoch[42] Batch [200] Speed: 585.67 
samples/sec       accuracy=0.937969
   > 2019-08-21 13:28:15,896 INFO Epoch[42] Batch [250] Speed: 578.78 
samples/sec       accuracy=0.937500
   > 2019-08-21 13:28:26,926 INFO Epoch[42] Batch [300] Speed: 580.24 
samples/sec       accuracy=0.934219
   > 2019-08-21 13:28:37,872 INFO Epoch[42] Batch [350] Speed: 584.72 
samples/sec       accuracy=0.946094
   > 2019-08-21 13:28:46,392 INFO Epoch[42] Train-accuracy=0.937700
   > 2019-08-21 13:28:46,393 INFO Epoch[42] Time cost=85.645
   > 2019-08-21 13:28:46,869 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0043.params"
   > 2019-08-21 13:28:50,554 INFO Epoch[42] Validation-accuracy=0.738181
   > 2019-08-21 13:29:01,763 INFO Epoch[43] Batch [50]  Speed: 579.38 
samples/sec       accuracy=0.935815
   > 2019-08-21 13:29:12,702 INFO Epoch[43] Batch [100] Speed: 585.09 
samples/sec       accuracy=0.941094
   > 2019-08-21 13:29:23,734 INFO Epoch[43] Batch [150] Speed: 580.13 
samples/sec       accuracy=0.929063
   > 2019-08-21 13:29:34,682 INFO Epoch[43] Batch [200] Speed: 584.58 
samples/sec       accuracy=0.940156
   > 2019-08-21 13:29:45,680 INFO Epoch[43] Batch [250] Speed: 581.95 
samples/sec       accuracy=0.938125
   > 2019-08-21 13:29:56,621 INFO Epoch[43] Batch [300] Speed: 585.00 
samples/sec       accuracy=0.944063
   > 2019-08-21 13:30:07,545 INFO Epoch[43] Batch [350] Speed: 585.85 
samples/sec       accuracy=0.939844
   > 2019-08-21 13:30:16,314 INFO Epoch[43] Train-accuracy=0.935352
   > 2019-08-21 13:30:16,314 INFO Epoch[43] Time cost=85.754
   > 2019-08-21 13:30:16,808 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0044.params"
   > 2019-08-21 13:30:20,489 INFO Epoch[43] Validation-accuracy=0.744491
   > 2019-08-21 13:30:31,678 INFO Epoch[44] Batch [50]  Speed: 580.36 
samples/sec       accuracy=0.942402
   > 2019-08-21 13:30:42,581 INFO Epoch[44] Batch [100] Speed: 587.01 
samples/sec       accuracy=0.936406
   > 2019-08-21 13:30:53,613 INFO Epoch[44] Batch [150] Speed: 580.16 
samples/sec       accuracy=0.936719
   > 2019-08-21 13:31:04,527 INFO Epoch[44] Batch [200] Speed: 586.43 
samples/sec       accuracy=0.939688
   > 2019-08-21 13:31:15,543 INFO Epoch[44] Batch [250] Speed: 581.00 
samples/sec       accuracy=0.939063
   > 2019-08-21 13:31:26,449 INFO Epoch[44] Batch [300] Speed: 586.84 
samples/sec       accuracy=0.940000
   > 2019-08-21 13:31:37,466 INFO Epoch[44] Batch [350] Speed: 580.91 
samples/sec       accuracy=0.939531
   > 2019-08-21 13:31:46,207 INFO Epoch[44] Train-accuracy=0.937500
   > 2019-08-21 13:31:46,208 INFO Epoch[44] Time cost=85.713
   > 2019-08-21 13:31:46,990 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0045.params"
   > 2019-08-21 13:31:50,727 INFO Epoch[44] Validation-accuracy=0.762520
   > 2019-08-21 13:32:01,909 INFO Epoch[45] Batch [50]  Speed: 579.91 
samples/sec       accuracy=0.935662
   > 2019-08-21 13:32:12,854 INFO Epoch[45] Batch [100] Speed: 584.78 
samples/sec       accuracy=0.939219
   > 2019-08-21 13:32:23,899 INFO Epoch[45] Batch [150] Speed: 579.45 
samples/sec       accuracy=0.942031
   > 2019-08-21 13:32:34,850 INFO Epoch[45] Batch [200] Speed: 584.44 
samples/sec       accuracy=0.942031
   > 2019-08-21 13:32:45,876 INFO Epoch[45] Batch [250] Speed: 580.47 
samples/sec       accuracy=0.940625
   > 2019-08-21 13:32:56,812 INFO Epoch[45] Batch [300] Speed: 585.25 
samples/sec       accuracy=0.937813
   > 2019-08-21 13:33:07,808 INFO Epoch[45] Batch [350] Speed: 582.06 
samples/sec       accuracy=0.936562
   > 2019-08-21 13:33:16,325 INFO Epoch[45] Train-accuracy=0.940505
   > 2019-08-21 13:33:16,325 INFO Epoch[45] Time cost=85.594
   > 2019-08-21 13:33:16,895 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0046.params"
   > 2019-08-21 13:33:20,590 INFO Epoch[45] Validation-accuracy=0.769231
   > 2019-08-21 13:33:31,773 INFO Epoch[46] Batch [50]  Speed: 580.45 
samples/sec       accuracy=0.934130
   > 2019-08-21 13:33:42,720 INFO Epoch[46] Batch [100] Speed: 584.67 
samples/sec       accuracy=0.943594
   > 2019-08-21 13:33:53,747 INFO Epoch[46] Batch [150] Speed: 580.40 
samples/sec       accuracy=0.949844
   > 2019-08-21 13:34:04,678 INFO Epoch[46] Batch [200] Speed: 585.54 
samples/sec       accuracy=0.939219
   > 2019-08-21 13:34:15,702 INFO Epoch[46] Batch [250] Speed: 580.56 
samples/sec       accuracy=0.941406
   > 2019-08-21 13:34:26,638 INFO Epoch[46] Batch [300] Speed: 585.22 
samples/sec       accuracy=0.940156
   > 2019-08-21 13:34:37,616 INFO Epoch[46] Batch [350] Speed: 583.01 
samples/sec       accuracy=0.939531
   > 2019-08-21 13:34:46,328 INFO Epoch[46] Train-accuracy=0.941992
   > 2019-08-21 13:34:46,329 INFO Epoch[46] Time cost=85.732
   > 2019-08-21 13:34:46,901 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0047.params"
   > 2019-08-21 13:34:50,600 INFO Epoch[46] Validation-accuracy=0.769832
   > 2019-08-21 13:35:01,795 INFO Epoch[47] Batch [50]  Speed: 579.56 
samples/sec       accuracy=0.935815
   > 2019-08-21 13:35:12,726 INFO Epoch[47] Batch [100] Speed: 585.47 
samples/sec       accuracy=0.938125
   > 2019-08-21 13:35:23,751 INFO Epoch[47] Batch [150] Speed: 580.54 
samples/sec       accuracy=0.942344
   > 2019-08-21 13:35:34,679 INFO Epoch[47] Batch [200] Speed: 585.67 
samples/sec       accuracy=0.945781
   > 2019-08-21 13:35:45,688 INFO Epoch[47] Batch [250] Speed: 581.36 
samples/sec       accuracy=0.945469
   > 2019-08-21 13:35:56,631 INFO Epoch[47] Batch [300] Speed: 584.83 
samples/sec       accuracy=0.947031
   > 2019-08-21 13:36:07,593 INFO Epoch[47] Batch [350] Speed: 583.88 
samples/sec       accuracy=0.940469
   > 2019-08-21 13:36:16,016 INFO Epoch[47] Train-accuracy=0.934495
   > 2019-08-21 13:36:16,016 INFO Epoch[47] Time cost=85.412
   > 2019-08-21 13:36:16,492 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0048.params"
   > 2019-08-21 13:36:20,085 INFO Epoch[47] Validation-accuracy=0.754908
   > 2019-08-21 13:36:31,346 INFO Epoch[48] Batch [50]  Speed: 584.08 
samples/sec       accuracy=0.940564
   > 2019-08-21 13:36:42,277 INFO Epoch[48] Batch [100] Speed: 585.51 
samples/sec       accuracy=0.932813
   > 2019-08-21 13:36:53,300 INFO Epoch[48] Batch [150] Speed: 580.63 
samples/sec       accuracy=0.940625
   > 2019-08-21 13:37:04,229 INFO Epoch[48] Batch [200] Speed: 585.59 
samples/sec       accuracy=0.941406
   > 2019-08-21 13:37:15,271 INFO Epoch[48] Batch [250] Speed: 579.63 
samples/sec       accuracy=0.942187
   > 2019-08-21 13:37:26,232 INFO Epoch[48] Batch [300] Speed: 583.94 
samples/sec       accuracy=0.947812
   > 2019-08-21 13:37:37,166 INFO Epoch[48] Batch [350] Speed: 585.32 
samples/sec       accuracy=0.949375
   > 2019-08-21 13:37:45,938 INFO Epoch[48] Train-accuracy=0.941797
   > 2019-08-21 13:37:45,939 INFO Epoch[48] Time cost=85.842
   > 2019-08-21 13:37:46,510 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0049.params"
   > 2019-08-21 13:37:50,374 INFO Epoch[48] Validation-accuracy=0.761966
   > 2019-08-21 13:38:01,563 INFO Epoch[49] Batch [50]  Speed: 580.15 
samples/sec       accuracy=0.940104
   > 2019-08-21 13:38:12,487 INFO Epoch[49] Batch [100] Speed: 585.89 
samples/sec       accuracy=0.946719
   > 2019-08-21 13:38:23,501 INFO Epoch[49] Batch [150] Speed: 581.07 
samples/sec       accuracy=0.934375
   > 2019-08-21 13:38:34,439 INFO Epoch[49] Batch [200] Speed: 585.17 
samples/sec       accuracy=0.941562
   > 2019-08-21 13:38:45,534 INFO Epoch[49] Batch [250] Speed: 576.82 
samples/sec       accuracy=0.946719
   > 2019-08-21 13:38:56,440 INFO Epoch[49] Batch [300] Speed: 586.87 
samples/sec       accuracy=0.944063
   > 2019-08-21 13:39:07,406 INFO Epoch[49] Batch [350] Speed: 583.62 
samples/sec       accuracy=0.948125
   > 2019-08-21 13:39:16,143 INFO Epoch[49] Train-accuracy=0.946875
   > 2019-08-21 13:39:16,143 INFO Epoch[49] Time cost=85.763
   > 2019-08-21 13:39:16,743 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0050.params"
   > 2019-08-21 13:39:20,431 INFO Epoch[49] Validation-accuracy=0.758914
   > 2019-08-21 13:39:31,629 INFO Epoch[50] Batch [50]  Speed: 580.19 
samples/sec       accuracy=0.946385
   > 2019-08-21 13:39:42,557 INFO Epoch[50] Batch [100] Speed: 585.64 
samples/sec       accuracy=0.943750
   > 2019-08-21 13:39:53,590 INFO Epoch[50] Batch [150] Speed: 580.10 
samples/sec       accuracy=0.939531
   > 2019-08-21 13:40:04,515 INFO Epoch[50] Batch [200] Speed: 585.84 
samples/sec       accuracy=0.944688
   > 2019-08-21 13:40:15,523 INFO Epoch[50] Batch [250] Speed: 581.39 
samples/sec       accuracy=0.952344
   > 2019-08-21 13:40:26,455 INFO Epoch[50] Batch [300] Speed: 585.47 
samples/sec       accuracy=0.948750
   > 2019-08-21 13:40:37,404 INFO Epoch[50] Batch [350] Speed: 584.52 
samples/sec       accuracy=0.944688
   > 2019-08-21 13:40:45,906 INFO Epoch[50] Train-accuracy=0.946514
   > 2019-08-21 13:40:45,907 INFO Epoch[50] Time cost=85.469
   > 2019-08-21 13:40:46,934 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0051.params"
   > 2019-08-21 13:40:50,682 INFO Epoch[50] Validation-accuracy=0.748598
   > 2019-08-21 13:41:01,857 INFO Epoch[51] Batch [50]  Speed: 582.01 
samples/sec       accuracy=0.940257
   > 2019-08-21 13:41:12,810 INFO Epoch[51] Batch [100] Speed: 584.32 
samples/sec       accuracy=0.945156
   > 2019-08-21 13:41:23,819 INFO Epoch[51] Batch [150] Speed: 581.34 
samples/sec       accuracy=0.941875
   > 2019-08-21 13:41:34,741 INFO Epoch[51] Batch [200] Speed: 586.01 
samples/sec       accuracy=0.943750
   > 2019-08-21 13:41:45,751 INFO Epoch[51] Batch [250] Speed: 581.30 
samples/sec       accuracy=0.945000
   > 2019-08-21 13:41:56,682 INFO Epoch[51] Batch [300] Speed: 585.50 
samples/sec       accuracy=0.942187
   > 2019-08-21 13:42:07,622 INFO Epoch[51] Batch [350] Speed: 585.05 
samples/sec       accuracy=0.943281
   > 2019-08-21 13:42:16,408 INFO Epoch[51] Train-accuracy=0.946094
   > 2019-08-21 13:42:16,408 INFO Epoch[51] Time cost=85.720
   > 2019-08-21 13:42:17,418 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0052.params"
   > 2019-08-21 13:42:21,146 INFO Epoch[51] Validation-accuracy=0.759515
   > 2019-08-21 13:42:32,332 INFO Epoch[52] Batch [50]  Speed: 580.57 
samples/sec       accuracy=0.942402
   > 2019-08-21 13:42:43,249 INFO Epoch[52] Batch [100] Speed: 586.24 
samples/sec       accuracy=0.946406
   > 2019-08-21 13:42:54,302 INFO Epoch[52] Batch [150] Speed: 579.07 
samples/sec       accuracy=0.943750
   > 2019-08-21 13:43:05,207 INFO Epoch[52] Batch [200] Speed: 586.86 
samples/sec       accuracy=0.944063
   > 2019-08-21 13:43:16,245 INFO Epoch[52] Batch [250] Speed: 579.84 
samples/sec       accuracy=0.938281
   > 2019-08-21 13:43:27,177 INFO Epoch[52] Batch [300] Speed: 585.45 
samples/sec       accuracy=0.933125
   > 2019-08-21 13:43:38,140 INFO Epoch[52] Batch [350] Speed: 583.81 
samples/sec       accuracy=0.945156
   > 2019-08-21 13:43:46,889 INFO Epoch[52] Train-accuracy=0.939648
   > 2019-08-21 13:43:46,889 INFO Epoch[52] Time cost=85.737
   > 2019-08-21 13:43:47,514 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0053.params"
   > 2019-08-21 13:43:51,212 INFO Epoch[52] Validation-accuracy=0.759916
   > 2019-08-21 13:44:02,392 INFO Epoch[53] Batch [50]  Speed: 580.93 
samples/sec       accuracy=0.945312
   > 2019-08-21 13:44:13,335 INFO Epoch[53] Batch [100] Speed: 584.83 
samples/sec       accuracy=0.944531
   > 2019-08-21 13:44:24,340 INFO Epoch[53] Batch [150] Speed: 581.58 
samples/sec       accuracy=0.938906
   > 2019-08-21 13:44:35,271 INFO Epoch[53] Batch [200] Speed: 585.54 
samples/sec       accuracy=0.943906
   > 2019-08-21 13:44:46,278 INFO Epoch[53] Batch [250] Speed: 581.42 
samples/sec       accuracy=0.949531
   > 2019-08-21 13:44:57,223 INFO Epoch[53] Batch [300] Speed: 584.79 
samples/sec       accuracy=0.944688
   > 2019-08-21 13:45:08,191 INFO Epoch[53] Batch [350] Speed: 583.52 
samples/sec       accuracy=0.943906
   > 2019-08-21 13:45:16,708 INFO Epoch[53] Train-accuracy=0.942308
   > 2019-08-21 13:45:16,708 INFO Epoch[53] Time cost=85.490
   > 2019-08-21 13:45:17,511 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0054.params"
   > 2019-08-21 13:45:21,208 INFO Epoch[53] Validation-accuracy=0.758313
   > 2019-08-21 13:45:32,379 INFO Epoch[54] Batch [50]  Speed: 581.10 
samples/sec       accuracy=0.945312
   > 2019-08-21 13:45:43,332 INFO Epoch[54] Batch [100] Speed: 584.36 
samples/sec       accuracy=0.944531
   > 2019-08-21 13:45:54,340 INFO Epoch[54] Batch [150] Speed: 581.43 
samples/sec       accuracy=0.931875
   > 2019-08-21 13:46:05,271 INFO Epoch[54] Batch [200] Speed: 585.49 
samples/sec       accuracy=0.946875
   > 2019-08-21 13:46:16,270 INFO Epoch[54] Batch [250] Speed: 581.87 
samples/sec       accuracy=0.942813
   > 2019-08-21 13:46:27,175 INFO Epoch[54] Batch [300] Speed: 586.89 
samples/sec       accuracy=0.946875
   > 2019-08-21 13:46:38,136 INFO Epoch[54] Batch [350] Speed: 583.92 
samples/sec       accuracy=0.942656
   > 2019-08-21 13:46:46,896 INFO Epoch[54] Train-accuracy=0.942187
   > 2019-08-21 13:46:46,896 INFO Epoch[54] Time cost=85.682
   > 2019-08-21 13:46:47,679 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0055.params"
   > 2019-08-21 13:46:51,414 INFO Epoch[54] Validation-accuracy=0.755709
   > 2019-08-21 13:47:02,601 INFO Epoch[55] Batch [50]  Speed: 580.74 
samples/sec       accuracy=0.950980
   > 2019-08-21 13:47:13,551 INFO Epoch[55] Batch [100] Speed: 584.49 
samples/sec       accuracy=0.946562
   > 2019-08-21 13:47:24,554 INFO Epoch[55] Batch [150] Speed: 581.66 
samples/sec       accuracy=0.944375
   > 2019-08-21 13:47:35,505 INFO Epoch[55] Batch [200] Speed: 584.43 
samples/sec       accuracy=0.947031
   > 2019-08-21 13:47:46,521 INFO Epoch[55] Batch [250] Speed: 581.03 
samples/sec       accuracy=0.940469
   > 2019-08-21 13:47:57,460 INFO Epoch[55] Batch [300] Speed: 585.04 
samples/sec       accuracy=0.951719
   > 2019-08-21 13:48:08,396 INFO Epoch[55] Batch [350] Speed: 585.28 
samples/sec       accuracy=0.940156
   > 2019-08-21 13:48:16,839 INFO Epoch[55] Train-accuracy=0.948718
   > 2019-08-21 13:48:16,839 INFO Epoch[55] Time cost=85.419
   > 2019-08-21 13:48:17,418 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0056.params"
   > 2019-08-21 13:48:21,043 INFO Epoch[55] Validation-accuracy=0.756911
   > 2019-08-21 13:48:32,272 INFO Epoch[56] Batch [50]  Speed: 585.49 
samples/sec       accuracy=0.944087
   > 2019-08-21 13:48:43,208 INFO Epoch[56] Batch [100] Speed: 585.28 
samples/sec       accuracy=0.948594
   > 2019-08-21 13:48:54,200 INFO Epoch[56] Batch [150] Speed: 582.26 
samples/sec       accuracy=0.949063
   > 2019-08-21 13:49:05,124 INFO Epoch[56] Batch [200] Speed: 585.88 
samples/sec       accuracy=0.946250
   > 2019-08-21 13:49:16,139 INFO Epoch[56] Batch [250] Speed: 581.04 
samples/sec       accuracy=0.947187
   > 2019-08-21 13:49:27,039 INFO Epoch[56] Batch [300] Speed: 587.17 
samples/sec       accuracy=0.943750
   > 2019-08-21 13:49:37,928 INFO Epoch[56] Batch [350] Speed: 587.73 
samples/sec       accuracy=0.950313
   > 2019-08-21 13:49:46,714 INFO Epoch[56] Train-accuracy=0.952930
   > 2019-08-21 13:49:46,714 INFO Epoch[56] Time cost=85.658
   > 2019-08-21 13:49:47,314 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0057.params"
   > 2019-08-21 13:49:51,110 INFO Epoch[56] Validation-accuracy=0.744363
   > 2019-08-21 13:50:02,296 INFO Epoch[57] Batch [50]  Speed: 580.02 
samples/sec       accuracy=0.942249
   > 2019-08-21 13:50:13,191 INFO Epoch[57] Batch [100] Speed: 587.47 
samples/sec       accuracy=0.941406
   > 2019-08-21 13:50:24,210 INFO Epoch[57] Batch [150] Speed: 580.79 
samples/sec       accuracy=0.947812
   > 2019-08-21 13:50:35,134 INFO Epoch[57] Batch [200] Speed: 585.91 
samples/sec       accuracy=0.950625
   > 2019-08-21 13:50:46,158 INFO Epoch[57] Batch [250] Speed: 580.54 
samples/sec       accuracy=0.938906
   > 2019-08-21 13:50:57,105 INFO Epoch[57] Batch [300] Speed: 584.69 
samples/sec       accuracy=0.943438
   > 2019-08-21 13:51:08,049 INFO Epoch[57] Batch [350] Speed: 584.80 
samples/sec       accuracy=0.943594
   > 2019-08-21 13:51:16,787 INFO Epoch[57] Train-accuracy=0.950195
   > 2019-08-21 13:51:16,787 INFO Epoch[57] Time cost=85.671
   > 2019-08-21 13:51:17,409 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0058.params"
   > 2019-08-21 13:51:21,104 INFO Epoch[57] Validation-accuracy=0.773738
   > 2019-08-21 13:51:32,263 INFO Epoch[58] Batch [50]  Speed: 582.13 
samples/sec       accuracy=0.948529
   > 2019-08-21 13:51:43,191 INFO Epoch[58] Batch [100] Speed: 585.70 
samples/sec       accuracy=0.948906
   > 2019-08-21 13:51:54,176 INFO Epoch[58] Batch [150] Speed: 582.61 
samples/sec       accuracy=0.947344
   > 2019-08-21 13:52:05,125 INFO Epoch[58] Batch [200] Speed: 584.58 
samples/sec       accuracy=0.942656
   > 2019-08-21 13:52:16,163 INFO Epoch[58] Batch [250] Speed: 579.83 
samples/sec       accuracy=0.952500
   > 2019-08-21 13:52:27,081 INFO Epoch[58] Batch [300] Speed: 586.18 
samples/sec       accuracy=0.945781
   > 2019-08-21 13:52:38,024 INFO Epoch[58] Batch [350] Speed: 584.86 
samples/sec       accuracy=0.946406
   > 2019-08-21 13:52:46,570 INFO Epoch[58] Train-accuracy=0.942508
   > 2019-08-21 13:52:46,570 INFO Epoch[58] Time cost=85.459
   > 2019-08-21 13:52:47,259 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0059.params"
   > 2019-08-21 13:52:50,961 INFO Epoch[58] Validation-accuracy=0.755909
   > 2019-08-21 13:53:02,127 INFO Epoch[59] Batch [50]  Speed: 582.39 
samples/sec       accuracy=0.941942
   > 2019-08-21 13:53:13,046 INFO Epoch[59] Batch [100] Speed: 586.17 
samples/sec       accuracy=0.939688
   > 2019-08-21 13:53:24,050 INFO Epoch[59] Batch [150] Speed: 581.62 
samples/sec       accuracy=0.940156
   > 2019-08-21 13:53:34,971 INFO Epoch[59] Batch [200] Speed: 586.02 
samples/sec       accuracy=0.944219
   > 2019-08-21 13:53:45,972 INFO Epoch[59] Batch [250] Speed: 581.79 
samples/sec       accuracy=0.954688
   > 2019-08-21 13:53:56,892 INFO Epoch[59] Batch [300] Speed: 586.10 
samples/sec       accuracy=0.952187
   > 2019-08-21 13:54:07,808 INFO Epoch[59] Batch [350] Speed: 586.30 
samples/sec       accuracy=0.947969
   > 2019-08-21 13:54:16,582 INFO Epoch[59] Train-accuracy=0.946680
   > 2019-08-21 13:54:16,582 INFO Epoch[59] Time cost=85.614
   > 2019-08-21 13:54:17,183 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0060.params"
   > 2019-08-21 13:54:20,881 INFO Epoch[59] Validation-accuracy=0.759716
   > 2019-08-21 13:54:32,065 INFO Epoch[60] Batch [50]  Speed: 580.60 
samples/sec       accuracy=0.942249
   > 2019-08-21 13:54:42,993 INFO Epoch[60] Batch [100] Speed: 585.66 
samples/sec       accuracy=0.952187
   > 2019-08-21 13:54:54,002 INFO Epoch[60] Batch [150] Speed: 581.36 
samples/sec       accuracy=0.943438
   > 2019-08-21 13:55:04,930 INFO Epoch[60] Batch [200] Speed: 585.69 
samples/sec       accuracy=0.944844
   > 2019-08-21 13:55:15,916 INFO Epoch[60] Batch [250] Speed: 582.56 
samples/sec       accuracy=0.947812
   > 2019-08-21 13:55:26,867 INFO Epoch[60] Batch [300] Speed: 584.43 
samples/sec       accuracy=0.955156
   > 2019-08-21 13:55:37,777 INFO Epoch[60] Batch [350] Speed: 586.66 
samples/sec       accuracy=0.949219
   > 2019-08-21 13:55:46,509 INFO Epoch[60] Train-accuracy=0.949609
   > 2019-08-21 13:55:46,509 INFO Epoch[60] Time cost=85.623
   > 2019-08-21 13:55:47,052 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0061.params"
   > 2019-08-21 13:55:50,726 INFO Epoch[60] Validation-accuracy=0.765425
   > 2019-08-21 13:56:01,886 INFO Epoch[61] Batch [50]  Speed: 581.84 
samples/sec       accuracy=0.941942
   > 2019-08-21 13:56:12,817 INFO Epoch[61] Batch [100] Speed: 585.53 
samples/sec       accuracy=0.945000
   > 2019-08-21 13:56:23,828 INFO Epoch[61] Batch [150] Speed: 581.28 
samples/sec       accuracy=0.947812
   > 2019-08-21 13:56:34,730 INFO Epoch[61] Batch [200] Speed: 587.05 
samples/sec       accuracy=0.950469
   > 2019-08-21 13:56:45,774 INFO Epoch[61] Batch [250] Speed: 579.49 
samples/sec       accuracy=0.945937
   > 2019-08-21 13:56:56,703 INFO Epoch[61] Batch [300] Speed: 585.65 
samples/sec       accuracy=0.949219
   > 2019-08-21 13:57:07,668 INFO Epoch[61] Batch [350] Speed: 583.67 
samples/sec       accuracy=0.944531
   > 2019-08-21 13:57:16,206 INFO Epoch[61] Train-accuracy=0.944111
   > 2019-08-21 13:57:16,206 INFO Epoch[61] Time cost=85.472
   > 2019-08-21 13:57:16,720 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0062.params"
   > 2019-08-21 13:57:20,406 INFO Epoch[61] Validation-accuracy=0.765425
   > 2019-08-21 13:57:31,574 INFO Epoch[62] Batch [50]  Speed: 581.60 
samples/sec       accuracy=0.949142
   > 2019-08-21 13:57:42,522 INFO Epoch[62] Batch [100] Speed: 584.57 
samples/sec       accuracy=0.948125
   > 2019-08-21 13:57:53,551 INFO Epoch[62] Batch [150] Speed: 580.30 
samples/sec       accuracy=0.950000
   > 2019-08-21 13:58:04,512 INFO Epoch[62] Batch [200] Speed: 583.91 
samples/sec       accuracy=0.948906
   > 2019-08-21 13:58:15,519 INFO Epoch[62] Batch [250] Speed: 581.47 
samples/sec       accuracy=0.952187
   > 2019-08-21 13:58:26,450 INFO Epoch[62] Batch [300] Speed: 585.52 
samples/sec       accuracy=0.948281
   > 2019-08-21 13:58:37,378 INFO Epoch[62] Batch [350] Speed: 585.67 
samples/sec       accuracy=0.951406
   > 2019-08-21 13:58:46,124 INFO Epoch[62] Train-accuracy=0.947852
   > 2019-08-21 13:58:46,124 INFO Epoch[62] Time cost=85.712
   > 2019-08-21 13:58:46,748 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0063.params"
   > 2019-08-21 13:58:50,461 INFO Epoch[62] Validation-accuracy=0.762921
   > 2019-08-21 13:59:01,631 INFO Epoch[63] Batch [50]  Speed: 581.39 
samples/sec       accuracy=0.949602
   > 2019-08-21 13:59:12,603 INFO Epoch[63] Batch [100] Speed: 583.33 
samples/sec       accuracy=0.950156
   > 2019-08-21 13:59:23,587 INFO Epoch[63] Batch [150] Speed: 582.68 
samples/sec       accuracy=0.943281
   > 2019-08-21 13:59:34,514 INFO Epoch[63] Batch [200] Speed: 585.73 
samples/sec       accuracy=0.948125
   > 2019-08-21 13:59:45,513 INFO Epoch[63] Batch [250] Speed: 581.91 
samples/sec       accuracy=0.945312
   > 2019-08-21 13:59:56,466 INFO Epoch[63] Batch [300] Speed: 584.30 
samples/sec       accuracy=0.949375
   > 2019-08-21 14:00:07,433 INFO Epoch[63] Batch [350] Speed: 583.62 
samples/sec       accuracy=0.945156
   > 2019-08-21 14:00:15,854 INFO Epoch[63] Train-accuracy=0.945913
   > 2019-08-21 14:00:15,854 INFO Epoch[63] Time cost=85.388
   > 2019-08-21 14:00:16,407 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0064.params"
   > 2019-08-21 14:00:20,018 INFO Epoch[63] Validation-accuracy=0.761118
   > 2019-08-21 14:00:31,292 INFO Epoch[64] Batch [50]  Speed: 583.09 
samples/sec       accuracy=0.952053
   > 2019-08-21 14:00:42,165 INFO Epoch[64] Batch [100] Speed: 588.63 
samples/sec       accuracy=0.942344
   > 2019-08-21 14:00:53,190 INFO Epoch[64] Batch [150] Speed: 580.52 
samples/sec       accuracy=0.948125
   > 2019-08-21 14:01:04,092 INFO Epoch[64] Batch [200] Speed: 587.05 
samples/sec       accuracy=0.953906
   > 2019-08-21 14:01:15,118 INFO Epoch[64] Batch [250] Speed: 580.44 
samples/sec       accuracy=0.949219
   > 2019-08-21 14:01:26,020 INFO Epoch[64] Batch [300] Speed: 587.07 
samples/sec       accuracy=0.952969
   > 2019-08-21 14:01:36,950 INFO Epoch[64] Batch [350] Speed: 585.58 
samples/sec       accuracy=0.953281
   > 2019-08-21 14:01:45,723 INFO Epoch[64] Train-accuracy=0.938477
   > 2019-08-21 14:01:45,724 INFO Epoch[64] Time cost=85.694
   > 2019-08-21 14:01:46,197 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0065.params"
   > 2019-08-21 14:01:50,000 INFO Epoch[64] Validation-accuracy=0.756131
   > 2019-08-21 14:02:01,200 INFO Epoch[65] Batch [50]  Speed: 580.30 
samples/sec       accuracy=0.938725
   > 2019-08-21 14:02:12,150 INFO Epoch[65] Batch [100] Speed: 584.51 
samples/sec       accuracy=0.950000
   > 2019-08-21 14:02:23,173 INFO Epoch[65] Batch [150] Speed: 580.63 
samples/sec       accuracy=0.951562
   > 2019-08-21 14:02:34,121 INFO Epoch[65] Batch [200] Speed: 584.58 
samples/sec       accuracy=0.946094
   > 2019-08-21 14:02:45,129 INFO Epoch[65] Batch [250] Speed: 581.45 
samples/sec       accuracy=0.950000
   > 2019-08-21 14:02:56,081 INFO Epoch[65] Batch [300] Speed: 584.35 
samples/sec       accuracy=0.953594
   > 2019-08-21 14:03:07,028 INFO Epoch[65] Batch [350] Speed: 584.67 
samples/sec       accuracy=0.955156
   > 2019-08-21 14:03:15,786 INFO Epoch[65] Train-accuracy=0.945117
   > 2019-08-21 14:03:15,787 INFO Epoch[65] Time cost=85.780
   > 2019-08-21 14:03:16,357 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0066.params"
   > 2019-08-21 14:03:20,059 INFO Epoch[65] Validation-accuracy=0.756510
   > 2019-08-21 14:03:31,234 INFO Epoch[66] Batch [50]  Speed: 581.62 
samples/sec       accuracy=0.946998
   > 2019-08-21 14:03:42,178 INFO Epoch[66] Batch [100] Speed: 584.80 
samples/sec       accuracy=0.947500
   > 2019-08-21 14:03:53,191 INFO Epoch[66] Batch [150] Speed: 581.18 
samples/sec       accuracy=0.950781
   > 2019-08-21 14:04:04,139 INFO Epoch[66] Batch [200] Speed: 584.59 
samples/sec       accuracy=0.944688
   > 2019-08-21 14:04:15,150 INFO Epoch[66] Batch [250] Speed: 581.24 
samples/sec       accuracy=0.949844
   > 2019-08-21 14:04:26,062 INFO Epoch[66] Batch [300] Speed: 586.56 
samples/sec       accuracy=0.948438
   > 2019-08-21 14:04:37,028 INFO Epoch[66] Batch [350] Speed: 583.64 
samples/sec       accuracy=0.951719
   > 2019-08-21 14:04:45,536 INFO Epoch[66] Train-accuracy=0.955729
   > 2019-08-21 14:04:45,536 INFO Epoch[66] Time cost=85.472
   > 2019-08-21 14:04:46,110 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0067.params"
   > 2019-08-21 14:04:49,817 INFO Epoch[66] Validation-accuracy=0.768329
   > 2019-08-21 14:05:01,007 INFO Epoch[67] Batch [50]  Speed: 580.33 
samples/sec       accuracy=0.943474
   > 2019-08-21 14:05:11,900 INFO Epoch[67] Batch [100] Speed: 587.52 
samples/sec       accuracy=0.943594
   > 2019-08-21 14:05:22,923 INFO Epoch[67] Batch [150] Speed: 580.60 
samples/sec       accuracy=0.938906
   > 2019-08-21 14:05:33,844 INFO Epoch[67] Batch [200] Speed: 586.05 
samples/sec       accuracy=0.944063
   > 2019-08-21 14:05:44,849 INFO Epoch[67] Batch [250] Speed: 581.61 
samples/sec       accuracy=0.955313
   > 2019-08-21 14:05:55,815 INFO Epoch[67] Batch [300] Speed: 583.61 
samples/sec       accuracy=0.954063
   > 2019-08-21 14:06:06,745 INFO Epoch[67] Batch [350] Speed: 585.57 
samples/sec       accuracy=0.942656
   > 2019-08-21 14:06:15,511 INFO Epoch[67] Train-accuracy=0.951172
   > 2019-08-21 14:06:15,511 INFO Epoch[67] Time cost=85.689
   > 2019-08-21 14:06:16,250 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0068.params"
   > 2019-08-21 14:06:19,940 INFO Epoch[67] Validation-accuracy=0.769932
   > 2019-08-21 14:06:31,074 INFO Epoch[68] Batch [50]  Speed: 583.06 
samples/sec       accuracy=0.949602
   > 2019-08-21 14:06:42,018 INFO Epoch[68] Batch [100] Speed: 584.80 
samples/sec       accuracy=0.946094
   > 2019-08-21 14:06:53,036 INFO Epoch[68] Batch [150] Speed: 580.88 
samples/sec       accuracy=0.953125
   > 2019-08-21 14:07:03,988 INFO Epoch[68] Batch [200] Speed: 584.42 
samples/sec       accuracy=0.951250
   > 2019-08-21 14:07:15,048 INFO Epoch[68] Batch [250] Speed: 578.66 
samples/sec       accuracy=0.953281
   > 2019-08-21 14:07:25,980 INFO Epoch[68] Batch [300] Speed: 585.44 
samples/sec       accuracy=0.951875
   > 2019-08-21 14:07:36,950 INFO Epoch[68] Batch [350] Speed: 583.46 
samples/sec       accuracy=0.953438
   > 2019-08-21 14:07:45,686 INFO Epoch[68] Train-accuracy=0.940430
   > 2019-08-21 14:07:45,686 INFO Epoch[68] Time cost=85.740
   > 2019-08-21 14:07:46,318 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0069.params"
   > 2019-08-21 14:07:50,015 INFO Epoch[68] Validation-accuracy=0.762420
   > 2019-08-21 14:08:01,193 INFO Epoch[69] Batch [50]  Speed: 580.30 
samples/sec       accuracy=0.943168
   > 2019-08-21 14:08:12,105 INFO Epoch[69] Batch [100] Speed: 586.54 
samples/sec       accuracy=0.948594
   > 2019-08-21 14:08:23,128 INFO Epoch[69] Batch [150] Speed: 580.62 
samples/sec       accuracy=0.951094
   > 2019-08-21 14:08:34,062 INFO Epoch[69] Batch [200] Speed: 585.30 
samples/sec       accuracy=0.946875
   > 2019-08-21 14:08:45,091 INFO Epoch[69] Batch [250] Speed: 580.33 
samples/sec       accuracy=0.951250
   > 2019-08-21 14:08:56,029 INFO Epoch[69] Batch [300] Speed: 585.11 
samples/sec       accuracy=0.946719
   > 2019-08-21 14:09:06,990 INFO Epoch[69] Batch [350] Speed: 583.92 
samples/sec       accuracy=0.946094
   > 2019-08-21 14:09:15,506 INFO Epoch[69] Train-accuracy=0.946514
   > 2019-08-21 14:09:15,506 INFO Epoch[69] Time cost=85.486
   > 2019-08-21 14:09:15,993 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0070.params"
   > 2019-08-21 14:09:19,677 INFO Epoch[69] Validation-accuracy=0.735176
   > 2019-08-21 14:09:30,861 INFO Epoch[70] Batch [50]  Speed: 580.89 
samples/sec       accuracy=0.953738
   > 2019-08-21 14:09:41,794 INFO Epoch[70] Batch [100] Speed: 585.39 
samples/sec       accuracy=0.957812
   > 2019-08-21 14:09:52,810 INFO Epoch[70] Batch [150] Speed: 580.99 
samples/sec       accuracy=0.945156
   > 2019-08-21 14:10:03,762 INFO Epoch[70] Batch [200] Speed: 584.38 
samples/sec       accuracy=0.946719
   > 2019-08-21 14:10:14,715 INFO Epoch[70] Batch [250] Speed: 584.37 
samples/sec       accuracy=0.946406
   > 2019-08-21 14:10:25,664 INFO Epoch[70] Batch [300] Speed: 584.51 
samples/sec       accuracy=0.947031
   > 2019-08-21 14:10:36,600 INFO Epoch[70] Batch [350] Speed: 585.28 
samples/sec       accuracy=0.952187
   > 2019-08-21 14:10:45,353 INFO Epoch[70] Train-accuracy=0.958203
   > 2019-08-21 14:10:45,353 INFO Epoch[70] Time cost=85.671
   > 2019-08-21 14:10:45,809 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0071.params"
   > 2019-08-21 14:10:49,504 INFO Epoch[70] Validation-accuracy=0.768429
   > 2019-08-21 14:11:00,645 INFO Epoch[71] Batch [50]  Speed: 584.10 
samples/sec       accuracy=0.957567
   > 2019-08-21 14:11:11,601 INFO Epoch[71] Batch [100] Speed: 584.18 
samples/sec       accuracy=0.951406
   > 2019-08-21 14:11:22,616 INFO Epoch[71] Batch [150] Speed: 581.06 
samples/sec       accuracy=0.950000
   > 2019-08-21 14:11:33,545 INFO Epoch[71] Batch [200] Speed: 585.58 
samples/sec       accuracy=0.947344
   > 2019-08-21 14:11:44,546 INFO Epoch[71] Batch [250] Speed: 581.77 
samples/sec       accuracy=0.944375
   > 2019-08-21 14:11:55,471 INFO Epoch[71] Batch [300] Speed: 585.87 
samples/sec       accuracy=0.949375
   > 2019-08-21 14:12:06,451 INFO Epoch[71] Batch [350] Speed: 582.90 
samples/sec       accuracy=0.946875
   > 2019-08-21 14:12:14,902 INFO Epoch[71] Train-accuracy=0.945112
   > 2019-08-21 14:12:14,903 INFO Epoch[71] Time cost=85.392
   > 2019-08-21 14:12:15,386 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0072.params"
   > 2019-08-21 14:12:18,987 INFO Epoch[71] Validation-accuracy=0.769030
   > 2019-08-21 14:12:30,269 INFO Epoch[72] Batch [50]  Speed: 582.13 
samples/sec       accuracy=0.950368
   > 2019-08-21 14:12:41,158 INFO Epoch[72] Batch [100] Speed: 587.77 
samples/sec       accuracy=0.947969
   > 2019-08-21 14:12:52,191 INFO Epoch[72] Batch [150] Speed: 580.06 
samples/sec       accuracy=0.954219
   > 2019-08-21 14:13:03,114 INFO Epoch[72] Batch [200] Speed: 585.95 
samples/sec       accuracy=0.952656
   > 2019-08-21 14:13:14,113 INFO Epoch[72] Batch [250] Speed: 581.91 
samples/sec       accuracy=0.956094
   > 2019-08-21 14:13:25,043 INFO Epoch[72] Batch [300] Speed: 585.55 
samples/sec       accuracy=0.955937
   > 2019-08-21 14:13:35,962 INFO Epoch[72] Batch [350] Speed: 586.12 
samples/sec       accuracy=0.956094
   > 2019-08-21 14:13:44,753 INFO Epoch[72] Train-accuracy=0.946094
   > 2019-08-21 14:13:44,753 INFO Epoch[72] Time cost=85.758
   > 2019-08-21 14:13:45,439 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0073.params"
   > 2019-08-21 14:13:49,300 INFO Epoch[72] Validation-accuracy=0.767009
   > 2019-08-21 14:14:00,466 INFO Epoch[73] Batch [50]  Speed: 581.32 
samples/sec       accuracy=0.944087
   > 2019-08-21 14:14:11,423 INFO Epoch[73] Batch [100] Speed: 584.14 
samples/sec       accuracy=0.951406
   > 2019-08-21 14:14:22,422 INFO Epoch[73] Batch [150] Speed: 581.91 
samples/sec       accuracy=0.950469
   > 2019-08-21 14:14:33,364 INFO Epoch[73] Batch [200] Speed: 584.88 
samples/sec       accuracy=0.949063
   > 2019-08-21 14:14:44,373 INFO Epoch[73] Batch [250] Speed: 581.37 
samples/sec       accuracy=0.945000
   > 2019-08-21 14:14:55,306 INFO Epoch[73] Batch [300] Speed: 585.41 
samples/sec       accuracy=0.953750
   > 2019-08-21 14:15:06,264 INFO Epoch[73] Batch [350] Speed: 584.07 
samples/sec       accuracy=0.949531
   > 2019-08-21 14:15:14,999 INFO Epoch[73] Train-accuracy=0.950781
   > 2019-08-21 14:15:14,999 INFO Epoch[73] Time cost=85.693
   > 2019-08-21 14:15:15,484 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0074.params"
   > 2019-08-21 14:15:19,170 INFO Epoch[73] Validation-accuracy=0.766727
   > 2019-08-21 14:15:30,355 INFO Epoch[74] Batch [50]  Speed: 580.40 
samples/sec       accuracy=0.956189
   > 2019-08-21 14:15:41,238 INFO Epoch[74] Batch [100] Speed: 588.09 
samples/sec       accuracy=0.956562
   > 2019-08-21 14:15:52,280 INFO Epoch[74] Batch [150] Speed: 579.64 
samples/sec       accuracy=0.945781
   > 2019-08-21 14:16:03,213 INFO Epoch[74] Batch [200] Speed: 585.40 
samples/sec       accuracy=0.956406
   > 2019-08-21 14:16:14,222 INFO Epoch[74] Batch [250] Speed: 581.39 
samples/sec       accuracy=0.955156
   > 2019-08-21 14:16:25,140 INFO Epoch[74] Batch [300] Speed: 586.18 
samples/sec       accuracy=0.951719
   > 2019-08-21 14:16:36,098 INFO Epoch[74] Batch [350] Speed: 584.05 
samples/sec       accuracy=0.953906
   > 2019-08-21 14:16:44,646 INFO Epoch[74] Train-accuracy=0.946715
   > 2019-08-21 14:16:44,646 INFO Epoch[74] Time cost=85.471
   > 2019-08-21 14:16:45,110 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0075.params"
   > 2019-08-21 14:16:48,807 INFO Epoch[74] Validation-accuracy=0.764623
   > 2019-08-21 14:16:59,988 INFO Epoch[75] Batch [50]  Speed: 580.94 
samples/sec       accuracy=0.953125
   > 2019-08-21 14:17:10,957 INFO Epoch[75] Batch [100] Speed: 583.47 
samples/sec       accuracy=0.953281
   > 2019-08-21 14:17:22,017 INFO Epoch[75] Batch [150] Speed: 578.64 
samples/sec       accuracy=0.953281
   > 2019-08-21 14:17:32,935 INFO Epoch[75] Batch [200] Speed: 586.22 
samples/sec       accuracy=0.955781
   > 2019-08-21 14:17:43,957 INFO Epoch[75] Batch [250] Speed: 580.66 
samples/sec       accuracy=0.951406
   > 2019-08-21 14:17:54,926 INFO Epoch[75] Batch [300] Speed: 583.50 
samples/sec       accuracy=0.950469
   > 2019-08-21 14:18:05,860 INFO Epoch[75] Batch [350] Speed: 585.33 
samples/sec       accuracy=0.952344
   > 2019-08-21 14:18:14,646 INFO Epoch[75] Train-accuracy=0.953320
   > 2019-08-21 14:18:14,646 INFO Epoch[75] Time cost=85.833
   > 2019-08-21 14:18:16,174 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0076.params"
   > 2019-08-21 14:18:19,907 INFO Epoch[75] Validation-accuracy=0.764123
   > 2019-08-21 14:18:31,082 INFO Epoch[76] Batch [50]  Speed: 580.86 
samples/sec       accuracy=0.954044
   > 2019-08-21 14:18:42,034 INFO Epoch[76] Batch [100] Speed: 584.37 
samples/sec       accuracy=0.945625
   > 2019-08-21 14:18:53,035 INFO Epoch[76] Batch [150] Speed: 581.77 
samples/sec       accuracy=0.951406
   > 2019-08-21 14:19:03,985 INFO Epoch[76] Batch [200] Speed: 584.50 
samples/sec       accuracy=0.943594
   > 2019-08-21 14:19:15,023 INFO Epoch[76] Batch [250] Speed: 579.82 
samples/sec       accuracy=0.948906
   > 2019-08-21 14:19:25,922 INFO Epoch[76] Batch [300] Speed: 587.26 
samples/sec       accuracy=0.954063
   > 2019-08-21 14:19:36,893 INFO Epoch[76] Batch [350] Speed: 583.34 
samples/sec       accuracy=0.950937
   > 2019-08-21 14:19:45,625 INFO Epoch[76] Train-accuracy=0.950977
   > 2019-08-21 14:19:45,626 INFO Epoch[76] Time cost=85.713
   > 2019-08-21 14:19:46,091 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0077.params"
   > 2019-08-21 14:19:49,769 INFO Epoch[76] Validation-accuracy=0.760817
   > 2019-08-21 14:20:00,951 INFO Epoch[77] Batch [50]  Speed: 581.16 
samples/sec       accuracy=0.951746
   > 2019-08-21 14:20:11,872 INFO Epoch[77] Batch [100] Speed: 586.01 
samples/sec       accuracy=0.950625
   > 2019-08-21 14:20:22,889 INFO Epoch[77] Batch [150] Speed: 580.94 
samples/sec       accuracy=0.950000
   > 2019-08-21 14:20:33,788 INFO Epoch[77] Batch [200] Speed: 587.25 
samples/sec       accuracy=0.948281
   > 2019-08-21 14:20:44,833 INFO Epoch[77] Batch [250] Speed: 579.44 
samples/sec       accuracy=0.948906
   > 2019-08-21 14:20:55,766 INFO Epoch[77] Batch [300] Speed: 585.41 
samples/sec       accuracy=0.947344
   > 2019-08-21 14:21:06,720 INFO Epoch[77] Batch [350] Speed: 584.30 
samples/sec       accuracy=0.948125
   > 2019-08-21 14:21:15,253 INFO Epoch[77] Train-accuracy=0.942909
   > 2019-08-21 14:21:15,254 INFO Epoch[77] Time cost=85.477
   > 2019-08-21 14:21:16,450 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0078.params"
   > 2019-08-21 14:21:20,282 INFO Epoch[77] Validation-accuracy=0.765525
   > 2019-08-21 14:21:31,465 INFO Epoch[78] Batch [50]  Speed: 580.98 
samples/sec       accuracy=0.954044
   > 2019-08-21 14:21:42,403 INFO Epoch[78] Batch [100] Speed: 585.12 
samples/sec       accuracy=0.953594
   > 2019-08-21 14:21:53,414 INFO Epoch[78] Batch [150] Speed: 581.24 
samples/sec       accuracy=0.955625
   > 2019-08-21 14:22:04,364 INFO Epoch[78] Batch [200] Speed: 584.49 
samples/sec       accuracy=0.951250
   > 2019-08-21 14:22:15,381 INFO Epoch[78] Batch [250] Speed: 580.94 
samples/sec       accuracy=0.952500
   > 2019-08-21 14:22:26,288 INFO Epoch[78] Batch [300] Speed: 586.78 
samples/sec       accuracy=0.945937
   > 2019-08-21 14:22:37,263 INFO Epoch[78] Batch [350] Speed: 583.18 
samples/sec       accuracy=0.949063
   > 2019-08-21 14:22:46,027 INFO Epoch[78] Train-accuracy=0.950977
   > 2019-08-21 14:22:46,027 INFO Epoch[78] Time cost=85.739
   > 2019-08-21 14:22:46,493 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0079.params"
   > 2019-08-21 14:22:50,165 INFO Epoch[78] Validation-accuracy=0.760417
   > 2019-08-21 14:23:01,370 INFO Epoch[79] Batch [50]  Speed: 579.55 
samples/sec       accuracy=0.949602
   > 2019-08-21 14:23:12,275 INFO Epoch[79] Batch [100] Speed: 586.92 
samples/sec       accuracy=0.950937
   > 2019-08-21 14:23:23,305 INFO Epoch[79] Batch [150] Speed: 580.23 
samples/sec       accuracy=0.951406
   > 2019-08-21 14:23:34,236 INFO Epoch[79] Batch [200] Speed: 585.52 
samples/sec       accuracy=0.952656
   > 2019-08-21 14:23:45,289 INFO Epoch[79] Batch [250] Speed: 579.04 
samples/sec       accuracy=0.955000
   > 2019-08-21 14:23:56,244 INFO Epoch[79] Batch [300] Speed: 584.20 
samples/sec       accuracy=0.959063
   > 2019-08-21 14:24:07,216 INFO Epoch[79] Batch [350] Speed: 583.32 
samples/sec       accuracy=0.955625
   > 2019-08-21 14:24:15,652 INFO Epoch[79] Train-accuracy=0.951122
   > 2019-08-21 14:24:15,652 INFO Epoch[79] Time cost=85.481
   > 2019-08-21 14:24:16,197 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0080.params"
   > 2019-08-21 14:24:19,812 INFO Epoch[79] Validation-accuracy=0.763922
   > 2019-08-21 14:24:19,897 INFO Update[31251]: Change learning rate to 
1.00000e-02
   > 2019-08-21 14:24:31,094 INFO Epoch[80] Batch [50]  Speed: 582.74 
samples/sec       accuracy=0.948376
   > 2019-08-21 14:24:42,008 INFO Epoch[80] Batch [100] Speed: 586.42 
samples/sec       accuracy=0.959844
   > 2019-08-21 14:24:53,041 INFO Epoch[80] Batch [150] Speed: 580.05 
samples/sec       accuracy=0.968437
   > 2019-08-21 14:25:03,982 INFO Epoch[80] Batch [200] Speed: 584.98 
samples/sec       accuracy=0.977187
   > 2019-08-21 14:25:14,994 INFO Epoch[80] Batch [250] Speed: 581.24 
samples/sec       accuracy=0.981875
   > 2019-08-21 14:25:25,933 INFO Epoch[80] Batch [300] Speed: 585.05 
samples/sec       accuracy=0.982969
   > 2019-08-21 14:25:36,838 INFO Epoch[80] Batch [350] Speed: 586.92 
samples/sec       accuracy=0.988594
   > 2019-08-21 14:25:45,628 INFO Epoch[80] Train-accuracy=0.991406
   > 2019-08-21 14:25:45,628 INFO Epoch[80] Time cost=85.808
   > 2019-08-21 14:25:46,200 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0081.params"
   > 2019-08-21 14:25:50,047 INFO Epoch[80] Validation-accuracy=0.799347
   > 2019-08-21 14:26:01,195 INFO Epoch[81] Batch [50]  Speed: 583.20 
samples/sec       accuracy=0.985294
   > 2019-08-21 14:26:12,114 INFO Epoch[81] Batch [100] Speed: 586.15 
samples/sec       accuracy=0.985625
   > 2019-08-21 14:26:23,154 INFO Epoch[81] Batch [150] Speed: 579.75 
samples/sec       accuracy=0.989219
   > 2019-08-21 14:26:34,082 INFO Epoch[81] Batch [200] Speed: 585.69 
samples/sec       accuracy=0.991094
   > 2019-08-21 14:26:45,099 INFO Epoch[81] Batch [250] Speed: 580.89 
samples/sec       accuracy=0.990313
   > 2019-08-21 14:26:56,025 INFO Epoch[81] Batch [300] Speed: 585.81 
samples/sec       accuracy=0.993125
   > 2019-08-21 14:27:06,989 INFO Epoch[81] Batch [350] Speed: 583.75 
samples/sec       accuracy=0.993906
   > 2019-08-21 14:27:15,698 INFO Epoch[81] Train-accuracy=0.993164
   > 2019-08-21 14:27:15,698 INFO Epoch[81] Time cost=85.646
   > 2019-08-21 14:27:16,232 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0082.params"
   > 2019-08-21 14:27:19,938 INFO Epoch[81] Validation-accuracy=0.801883
   > 2019-08-21 14:27:31,101 INFO Epoch[82] Batch [50]  Speed: 581.77 
samples/sec       accuracy=0.994179
   > 2019-08-21 14:27:42,027 INFO Epoch[82] Batch [100] Speed: 585.73 
samples/sec       accuracy=0.994062
   > 2019-08-21 14:27:53,069 INFO Epoch[82] Batch [150] Speed: 579.66 
samples/sec       accuracy=0.993594
   > 2019-08-21 14:28:03,997 INFO Epoch[82] Batch [200] Speed: 585.64 
samples/sec       accuracy=0.992969
   > 2019-08-21 14:28:15,031 INFO Epoch[82] Batch [250] Speed: 580.08 
samples/sec       accuracy=0.995938
   > 2019-08-21 14:28:25,965 INFO Epoch[82] Batch [300] Speed: 585.31 
samples/sec       accuracy=0.996875
   > 2019-08-21 14:28:36,934 INFO Epoch[82] Batch [350] Speed: 583.47 
samples/sec       accuracy=0.996094
   > 2019-08-21 14:28:45,467 INFO Epoch[82] Train-accuracy=0.997396
   > 2019-08-21 14:28:45,467 INFO Epoch[82] Time cost=85.524
   > 2019-08-21 14:28:45,956 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0083.params"
   > 2019-08-21 14:28:49,640 INFO Epoch[82] Validation-accuracy=0.802083
   > 2019-08-21 14:29:00,791 INFO Epoch[83] Batch [50]  Speed: 581.97 
samples/sec       accuracy=0.995404
   > 2019-08-21 14:29:11,729 INFO Epoch[83] Batch [100] Speed: 585.12 
samples/sec       accuracy=0.996719
   > 2019-08-21 14:29:22,811 INFO Epoch[83] Batch [150] Speed: 583.53 
samples/sec       accuracy=0.997188
   > 2019-08-21 14:29:33,758 INFO Epoch[83] Batch [200] Speed: 584.67 
samples/sec       accuracy=0.994687
   > 2019-08-21 14:29:44,750 INFO Epoch[83] Batch [250] Speed: 582.21 
samples/sec       accuracy=0.998594
   > 2019-08-21 14:29:55,707 INFO Epoch[83] Batch [300] Speed: 584.16 
samples/sec       accuracy=0.997500
   > 2019-08-21 14:30:06,632 INFO Epoch[83] Batch [350] Speed: 585.80 
samples/sec       accuracy=0.998281
   > 2019-08-21 14:30:15,398 INFO Epoch[83] Train-accuracy=0.996484
   > 2019-08-21 14:30:15,398 INFO Epoch[83] Time cost=85.750
   > 2019-08-21 14:30:15,941 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0084.params"
   > 2019-08-21 14:30:19,636 INFO Epoch[83] Validation-accuracy=0.805288
   > 2019-08-21 14:30:30,817 INFO Epoch[84] Batch [50]  Speed: 581.41 
samples/sec       accuracy=0.998468
   > 2019-08-21 14:30:41,758 INFO Epoch[84] Batch [100] Speed: 584.96 
samples/sec       accuracy=0.998125
   > 2019-08-21 14:30:52,796 INFO Epoch[84] Batch [150] Speed: 579.87 
samples/sec       accuracy=0.998594
   > 2019-08-21 14:31:03,688 INFO Epoch[84] Batch [200] Speed: 587.58 
samples/sec       accuracy=0.997500
   > 2019-08-21 14:31:14,712 INFO Epoch[84] Batch [250] Speed: 580.58 
samples/sec       accuracy=0.998750
   > 2019-08-21 14:31:25,651 INFO Epoch[84] Batch [300] Speed: 585.08 
samples/sec       accuracy=0.998594
   > 2019-08-21 14:31:36,632 INFO Epoch[84] Batch [350] Speed: 582.86 
samples/sec       accuracy=0.999375
   > 2019-08-21 14:31:45,368 INFO Epoch[84] Train-accuracy=0.999219
   > 2019-08-21 14:31:45,368 INFO Epoch[84] Time cost=85.727
   > 2019-08-21 14:31:45,909 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0085.params"
   > 2019-08-21 14:31:49,609 INFO Epoch[84] Validation-accuracy=0.807091
   > 2019-08-21 14:32:00,791 INFO Epoch[85] Batch [50]  Speed: 580.81 
samples/sec       accuracy=0.998621
   > 2019-08-21 14:32:11,746 INFO Epoch[85] Batch [100] Speed: 584.25 
samples/sec       accuracy=0.998125
   > 2019-08-21 14:32:22,764 INFO Epoch[85] Batch [150] Speed: 580.90 
samples/sec       accuracy=0.998437
   > 2019-08-21 14:32:33,671 INFO Epoch[85] Batch [200] Speed: 586.76 
samples/sec       accuracy=0.998750
   > 2019-08-21 14:32:44,668 INFO Epoch[85] Batch [250] Speed: 582.00 
samples/sec       accuracy=0.999062
   > 2019-08-21 14:32:55,585 INFO Epoch[85] Batch [300] Speed: 586.27 
samples/sec       accuracy=0.999062
   > 2019-08-21 14:33:06,555 INFO Epoch[85] Batch [350] Speed: 583.42 
samples/sec       accuracy=0.999062
   > 2019-08-21 14:33:15,074 INFO Epoch[85] Train-accuracy=0.999399
   > 2019-08-21 14:33:15,074 INFO Epoch[85] Time cost=85.458
   > 2019-08-21 14:33:15,882 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0086.params"
   > 2019-08-21 14:33:20,259 INFO Epoch[85] Validation-accuracy=0.807592
   > 2019-08-21 14:33:31,432 INFO Epoch[86] Batch [50]  Speed: 581.69 
samples/sec       accuracy=0.999234
   > 2019-08-21 14:33:42,394 INFO Epoch[86] Batch [100] Speed: 583.83 
samples/sec       accuracy=0.999219
   > 2019-08-21 14:33:53,432 INFO Epoch[86] Batch [150] Speed: 579.85 
samples/sec       accuracy=0.999687
   > 2019-08-21 14:34:04,369 INFO Epoch[86] Batch [200] Speed: 585.21 
samples/sec       accuracy=0.999219
   > 2019-08-21 14:34:15,393 INFO Epoch[86] Batch [250] Speed: 580.59 
samples/sec       accuracy=0.999531
   > 2019-08-21 14:34:26,322 INFO Epoch[86] Batch [300] Speed: 585.60 
samples/sec       accuracy=0.999062
   > 2019-08-21 14:34:37,296 INFO Epoch[86] Batch [350] Speed: 583.22 
samples/sec       accuracy=0.999687
   > 2019-08-21 14:34:46,048 INFO Epoch[86] Train-accuracy=0.999609
   > 2019-08-21 14:34:46,048 INFO Epoch[86] Time cost=85.782
   > 2019-08-21 14:34:46,833 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0087.params"
   > 2019-08-21 14:34:50,547 INFO Epoch[86] Validation-accuracy=0.807993
   > 2019-08-21 14:35:01,738 INFO Epoch[87] Batch [50]  Speed: 580.24 
samples/sec       accuracy=0.999387
   > 2019-08-21 14:35:12,653 INFO Epoch[87] Batch [100] Speed: 586.34 
samples/sec       accuracy=0.999531
   > 2019-08-21 14:35:23,660 INFO Epoch[87] Batch [150] Speed: 581.47 
samples/sec       accuracy=0.999531
   > 2019-08-21 14:35:34,601 INFO Epoch[87] Batch [200] Speed: 584.99 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:35:45,615 INFO Epoch[87] Batch [250] Speed: 581.10 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:35:56,565 INFO Epoch[87] Batch [300] Speed: 584.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:36:07,523 INFO Epoch[87] Batch [350] Speed: 584.03 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:36:15,993 INFO Epoch[87] Train-accuracy=1.000000
   > 2019-08-21 14:36:15,993 INFO Epoch[87] Time cost=85.440
   > 2019-08-21 14:36:16,510 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0088.params"
   > 2019-08-21 14:36:20,109 INFO Epoch[87] Validation-accuracy=0.805489
   > 2019-08-21 14:36:31,368 INFO Epoch[88] Batch [50]  Speed: 580.99 
samples/sec       accuracy=0.999694
   > 2019-08-21 14:36:42,308 INFO Epoch[88] Batch [100] Speed: 585.04 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:36:53,302 INFO Epoch[88] Batch [150] Speed: 582.18 
samples/sec       accuracy=0.999687
   > 2019-08-21 14:37:04,221 INFO Epoch[88] Batch [200] Speed: 586.12 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:37:15,282 INFO Epoch[88] Batch [250] Speed: 578.63 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:37:26,230 INFO Epoch[88] Batch [300] Speed: 584.57 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:37:37,167 INFO Epoch[88] Batch [350] Speed: 585.19 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:37:45,941 INFO Epoch[88] Train-accuracy=1.000000
   > 2019-08-21 14:37:45,942 INFO Epoch[88] Time cost=85.823
   > 2019-08-21 14:37:46,421 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0089.params"
   > 2019-08-21 14:37:50,228 INFO Epoch[88] Validation-accuracy=0.807456
   > 2019-08-21 14:38:01,416 INFO Epoch[89] Batch [50]  Speed: 581.67 
samples/sec       accuracy=0.999847
   > 2019-08-21 14:38:12,343 INFO Epoch[89] Batch [100] Speed: 585.75 
samples/sec       accuracy=0.999687
   > 2019-08-21 14:38:23,380 INFO Epoch[89] Batch [150] Speed: 579.86 
samples/sec       accuracy=0.999687
   > 2019-08-21 14:38:34,295 INFO Epoch[89] Batch [200] Speed: 586.34 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:38:45,324 INFO Epoch[89] Batch [250] Speed: 580.33 
samples/sec       accuracy=0.999687
   > 2019-08-21 14:38:56,272 INFO Epoch[89] Batch [300] Speed: 584.61 
samples/sec       accuracy=0.999687
   > 2019-08-21 14:39:07,259 INFO Epoch[89] Batch [350] Speed: 582.52 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:39:16,007 INFO Epoch[89] Train-accuracy=1.000000
   > 2019-08-21 14:39:16,008 INFO Epoch[89] Time cost=85.772
   > 2019-08-21 14:39:16,491 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0090.params"
   > 2019-08-21 14:39:20,170 INFO Epoch[89] Validation-accuracy=0.807893
   > 2019-08-21 14:39:31,360 INFO Epoch[90] Batch [50]  Speed: 580.36 
samples/sec       accuracy=0.999847
   > 2019-08-21 14:39:42,299 INFO Epoch[90] Batch [100] Speed: 585.07 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:39:53,328 INFO Epoch[90] Batch [150] Speed: 580.30 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:40:04,270 INFO Epoch[90] Batch [200] Speed: 584.95 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:40:15,269 INFO Epoch[90] Batch [250] Speed: 581.86 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:40:26,217 INFO Epoch[90] Batch [300] Speed: 584.63 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:40:37,145 INFO Epoch[90] Batch [350] Speed: 585.63 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:40:45,678 INFO Epoch[90] Train-accuracy=1.000000
   > 2019-08-21 14:40:45,678 INFO Epoch[90] Time cost=85.503
   > 2019-08-21 14:40:46,142 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0091.params"
   > 2019-08-21 14:40:49,824 INFO Epoch[90] Validation-accuracy=0.807091
   > 2019-08-21 14:41:00,970 INFO Epoch[91] Batch [50]  Speed: 582.85 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:41:11,927 INFO Epoch[91] Batch [100] Speed: 584.09 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:41:22,938 INFO Epoch[91] Batch [150] Speed: 581.30 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:41:33,837 INFO Epoch[91] Batch [200] Speed: 587.19 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:41:44,873 INFO Epoch[91] Batch [250] Speed: 579.97 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:41:55,806 INFO Epoch[91] Batch [300] Speed: 585.37 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:42:06,732 INFO Epoch[91] Batch [350] Speed: 585.78 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:42:15,516 INFO Epoch[91] Train-accuracy=1.000000
   > 2019-08-21 14:42:15,517 INFO Epoch[91] Time cost=85.687
   > 2019-08-21 14:42:16,139 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0092.params"
   > 2019-08-21 14:42:19,857 INFO Epoch[91] Validation-accuracy=0.806591
   > 2019-08-21 14:42:31,025 INFO Epoch[92] Batch [50]  Speed: 582.63 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:42:41,936 INFO Epoch[92] Batch [100] Speed: 586.58 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:42:52,945 INFO Epoch[92] Batch [150] Speed: 581.33 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:43:03,877 INFO Epoch[92] Batch [200] Speed: 585.46 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:43:14,876 INFO Epoch[92] Batch [250] Speed: 581.91 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:43:25,800 INFO Epoch[92] Batch [300] Speed: 585.87 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:43:36,734 INFO Epoch[92] Batch [350] Speed: 585.37 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:43:45,448 INFO Epoch[92] Train-accuracy=1.000000
   > 2019-08-21 14:43:45,448 INFO Epoch[92] Time cost=85.587
   > 2019-08-21 14:43:45,939 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0093.params"
   > 2019-08-21 14:43:49,621 INFO Epoch[92] Validation-accuracy=0.807091
   > 2019-08-21 14:44:00,789 INFO Epoch[93] Batch [50]  Speed: 581.85 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:44:11,742 INFO Epoch[93] Batch [100] Speed: 584.31 
samples/sec       accuracy=0.999844
   > 2019-08-21 14:44:22,772 INFO Epoch[93] Batch [150] Speed: 580.28 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:44:33,710 INFO Epoch[93] Batch [200] Speed: 585.11 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:44:44,736 INFO Epoch[93] Batch [250] Speed: 580.50 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:44:55,680 INFO Epoch[93] Batch [300] Speed: 584.79 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:45:06,643 INFO Epoch[93] Batch [350] Speed: 583.82 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:45:15,184 INFO Epoch[93] Train-accuracy=1.000000
   > 2019-08-21 14:45:15,185 INFO Epoch[93] Time cost=85.558
   > 2019-08-21 14:45:15,674 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0094.params"
   > 2019-08-21 14:45:19,352 INFO Epoch[93] Validation-accuracy=0.807392
   > 2019-08-21 14:45:30,539 INFO Epoch[94] Batch [50]  Speed: 581.40 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:45:41,449 INFO Epoch[94] Batch [100] Speed: 586.66 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:45:52,498 INFO Epoch[94] Batch [150] Speed: 579.22 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:46:03,439 INFO Epoch[94] Batch [200] Speed: 584.97 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:46:14,457 INFO Epoch[94] Batch [250] Speed: 580.92 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:46:25,397 INFO Epoch[94] Batch [300] Speed: 585.01 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:46:36,368 INFO Epoch[94] Batch [350] Speed: 583.35 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:46:45,105 INFO Epoch[94] Train-accuracy=1.000000
   > 2019-08-21 14:46:45,106 INFO Epoch[94] Time cost=85.748
   > 2019-08-21 14:46:45,573 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0095.params"
   > 2019-08-21 14:46:49,274 INFO Epoch[94] Validation-accuracy=0.806891
   > 2019-08-21 14:47:00,466 INFO Epoch[95] Batch [50]  Speed: 580.32 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:47:11,395 INFO Epoch[95] Batch [100] Speed: 585.62 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:47:22,438 INFO Epoch[95] Batch [150] Speed: 579.57 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:47:33,367 INFO Epoch[95] Batch [200] Speed: 585.60 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:47:44,387 INFO Epoch[95] Batch [250] Speed: 580.77 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:47:55,313 INFO Epoch[95] Batch [300] Speed: 585.81 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:48:06,286 INFO Epoch[95] Batch [350] Speed: 583.26 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:48:14,708 INFO Epoch[95] Train-accuracy=1.000000
   > 2019-08-21 14:48:14,709 INFO Epoch[95] Time cost=85.429
   > 2019-08-21 14:48:15,425 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0096.params"
   > 2019-08-21 14:48:19,038 INFO Epoch[95] Validation-accuracy=0.807091
   > 2019-08-21 14:48:30,280 INFO Epoch[96] Batch [50]  Speed: 584.37 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:48:41,230 INFO Epoch[96] Batch [100] Speed: 584.50 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:48:52,261 INFO Epoch[96] Batch [150] Speed: 580.18 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:49:03,197 INFO Epoch[96] Batch [200] Speed: 585.25 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:49:14,224 INFO Epoch[96] Batch [250] Speed: 580.44 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:49:25,148 INFO Epoch[96] Batch [300] Speed: 585.86 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:49:36,081 INFO Epoch[96] Batch [350] Speed: 585.43 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:49:44,857 INFO Epoch[96] Train-accuracy=1.000000
   > 2019-08-21 14:49:44,858 INFO Epoch[96] Time cost=85.807
   > 2019-08-21 14:49:45,419 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0097.params"
   > 2019-08-21 14:49:49,250 INFO Epoch[96] Validation-accuracy=0.807753
   > 2019-08-21 14:50:00,435 INFO Epoch[97] Batch [50]  Speed: 580.18 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:50:11,373 INFO Epoch[97] Batch [100] Speed: 585.10 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:50:22,409 INFO Epoch[97] Batch [150] Speed: 579.92 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:50:33,328 INFO Epoch[97] Batch [200] Speed: 586.18 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:50:44,366 INFO Epoch[97] Batch [250] Speed: 579.85 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:50:55,297 INFO Epoch[97] Batch [300] Speed: 585.48 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:51:06,260 INFO Epoch[97] Batch [350] Speed: 583.81 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:51:15,003 INFO Epoch[97] Train-accuracy=1.000000
   > 2019-08-21 14:51:15,004 INFO Epoch[97] Time cost=85.748
   > 2019-08-21 14:51:15,582 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0098.params"
   > 2019-08-21 14:51:19,285 INFO Epoch[97] Validation-accuracy=0.807392
   > 2019-08-21 14:51:30,466 INFO Epoch[98] Batch [50]  Speed: 580.48 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:51:41,432 INFO Epoch[98] Batch [100] Speed: 583.61 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:51:52,459 INFO Epoch[98] Batch [150] Speed: 580.44 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:52:03,388 INFO Epoch[98] Batch [200] Speed: 585.59 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:52:14,380 INFO Epoch[98] Batch [250] Speed: 582.26 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:52:25,322 INFO Epoch[98] Batch [300] Speed: 584.92 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:52:36,277 INFO Epoch[98] Batch [350] Speed: 584.26 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:52:44,810 INFO Epoch[98] Train-accuracy=1.000000
   > 2019-08-21 14:52:44,811 INFO Epoch[98] Time cost=85.519
   > 2019-08-21 14:52:45,292 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0099.params"
   > 2019-08-21 14:52:48,963 INFO Epoch[98] Validation-accuracy=0.807792
   > 2019-08-21 14:53:00,151 INFO Epoch[99] Batch [50]  Speed: 580.60 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:53:11,082 INFO Epoch[99] Batch [100] Speed: 585.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:53:22,096 INFO Epoch[99] Batch [150] Speed: 581.05 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:53:33,035 INFO Epoch[99] Batch [200] Speed: 585.10 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:53:44,058 INFO Epoch[99] Batch [250] Speed: 580.62 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:53:54,998 INFO Epoch[99] Batch [300] Speed: 585.05 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:54:05,932 INFO Epoch[99] Batch [350] Speed: 585.30 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:54:14,725 INFO Epoch[99] Train-accuracy=1.000000
   > 2019-08-21 14:54:14,725 INFO Epoch[99] Time cost=85.756
   > 2019-08-21 14:54:15,202 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0100.params"
   > 2019-08-21 14:54:18,911 INFO Epoch[99] Validation-accuracy=0.808594
   > 2019-08-21 14:54:30,110 INFO Epoch[100] Batch [50] Speed: 580.80 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:54:41,090 INFO Epoch[100] Batch [100]        Speed: 582.91 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:54:52,093 INFO Epoch[100] Batch [150]        Speed: 581.69 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:55:03,059 INFO Epoch[100] Batch [200]        Speed: 583.65 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:55:14,007 INFO Epoch[100] Batch [250]        Speed: 584.57 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:55:24,987 INFO Epoch[100] Batch [300]        Speed: 582.91 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:55:35,924 INFO Epoch[100] Batch [350]        Speed: 585.17 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:55:44,642 INFO Epoch[100] Train-accuracy=1.000000
   > 2019-08-21 14:55:44,643 INFO Epoch[100] Time cost=85.724
   > 2019-08-21 14:55:45,269 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0101.params"
   > 2019-08-21 14:55:48,957 INFO Epoch[100] Validation-accuracy=0.808994
   > 2019-08-21 14:56:00,120 INFO Epoch[101] Batch [50] Speed: 581.57 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:56:11,065 INFO Epoch[101] Batch [100]        Speed: 584.73 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:56:22,100 INFO Epoch[101] Batch [150]        Speed: 580.02 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:56:33,019 INFO Epoch[101] Batch [200]        Speed: 586.12 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:56:44,024 INFO Epoch[101] Batch [250]        Speed: 581.56 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:56:54,971 INFO Epoch[101] Batch [300]        Speed: 584.65 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:57:05,945 INFO Epoch[101] Batch [350]        Speed: 583.26 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:57:14,472 INFO Epoch[101] Train-accuracy=1.000000
   > 2019-08-21 14:57:14,472 INFO Epoch[101] Time cost=85.508
   > 2019-08-21 14:57:14,947 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0102.params"
   > 2019-08-21 14:57:18,638 INFO Epoch[101] Validation-accuracy=0.808193
   > 2019-08-21 14:57:29,825 INFO Epoch[102] Batch [50] Speed: 580.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:57:40,758 INFO Epoch[102] Batch [100]        Speed: 585.36 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:57:51,796 INFO Epoch[102] Batch [150]        Speed: 579.85 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:58:02,704 INFO Epoch[102] Batch [200]        Speed: 586.77 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:58:13,743 INFO Epoch[102] Batch [250]        Speed: 579.75 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:58:24,687 INFO Epoch[102] Batch [300]        Speed: 584.82 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:58:35,649 INFO Epoch[102] Batch [350]        Speed: 583.88 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:58:44,386 INFO Epoch[102] Train-accuracy=1.000000
   > 2019-08-21 14:58:44,386 INFO Epoch[102] Time cost=85.744
   > 2019-08-21 14:58:44,938 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0103.params"
   > 2019-08-21 14:58:48,618 INFO Epoch[102] Validation-accuracy=0.808393
   > 2019-08-21 14:58:59,798 INFO Epoch[103] Batch [50] Speed: 580.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:59:10,721 INFO Epoch[103] Batch [100]        Speed: 585.93 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:59:21,744 INFO Epoch[103] Batch [150]        Speed: 580.63 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:59:32,688 INFO Epoch[103] Batch [200]        Speed: 584.80 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:59:43,694 INFO Epoch[103] Batch [250]        Speed: 581.54 
samples/sec       accuracy=1.000000
   > 2019-08-21 14:59:54,628 INFO Epoch[103] Batch [300]        Speed: 585.31 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:00:05,600 INFO Epoch[103] Batch [350]        Speed: 583.33 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:00:14,007 INFO Epoch[103] Train-accuracy=1.000000
   > 2019-08-21 15:00:14,007 INFO Epoch[103] Time cost=85.381
   > 2019-08-21 15:00:14,566 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0104.params"
   > 2019-08-21 15:00:18,150 INFO Epoch[103] Validation-accuracy=0.807492
   > 2019-08-21 15:00:29,431 INFO Epoch[104] Batch [50] Speed: 582.33 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:00:40,365 INFO Epoch[104] Batch [100]        Speed: 585.35 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:00:51,388 INFO Epoch[104] Batch [150]        Speed: 580.63 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:01:02,322 INFO Epoch[104] Batch [200]        Speed: 585.33 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:01:13,361 INFO Epoch[104] Batch [250]        Speed: 579.81 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:01:24,255 INFO Epoch[104] Batch [300]        Speed: 587.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:01:35,190 INFO Epoch[104] Batch [350]        Speed: 585.24 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:01:43,976 INFO Epoch[104] Train-accuracy=1.000000
   > 2019-08-21 15:01:43,976 INFO Epoch[104] Time cost=85.817
   > 2019-08-21 15:01:44,474 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0105.params"
   > 2019-08-21 15:01:48,280 INFO Epoch[104] Validation-accuracy=0.807753
   > 2019-08-21 15:01:59,445 INFO Epoch[105] Batch [50] Speed: 583.09 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:02:10,398 INFO Epoch[105] Batch [100]        Speed: 584.33 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:02:21,430 INFO Epoch[105] Batch [150]        Speed: 580.16 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:02:32,376 INFO Epoch[105] Batch [200]        Speed: 584.69 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:02:43,396 INFO Epoch[105] Batch [250]        Speed: 580.77 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:02:54,329 INFO Epoch[105] Batch [300]        Speed: 585.43 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:03:05,298 INFO Epoch[105] Batch [350]        Speed: 583.49 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:03:14,018 INFO Epoch[105] Train-accuracy=1.000000
   > 2019-08-21 15:03:14,019 INFO Epoch[105] Time cost=85.733
   > 2019-08-21 15:03:14,646 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0106.params"
   > 2019-08-21 15:03:18,329 INFO Epoch[105] Validation-accuracy=0.808494
   > 2019-08-21 15:03:29,524 INFO Epoch[106] Batch [50] Speed: 579.81 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:03:40,447 INFO Epoch[106] Batch [100]        Speed: 585.91 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:03:51,497 INFO Epoch[106] Batch [150]        Speed: 579.25 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:04:02,428 INFO Epoch[106] Batch [200]        Speed: 585.47 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:04:13,443 INFO Epoch[106] Batch [250]        Speed: 581.03 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:04:24,377 INFO Epoch[106] Batch [300]        Speed: 585.35 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:04:35,360 INFO Epoch[106] Batch [350]        Speed: 582.73 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:04:43,891 INFO Epoch[106] Train-accuracy=1.000000
   > 2019-08-21 15:04:43,891 INFO Epoch[106] Time cost=85.556
   > 2019-08-21 15:04:44,385 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0107.params"
   > 2019-08-21 15:04:48,073 INFO Epoch[106] Validation-accuracy=0.809595
   > 2019-08-21 15:04:59,275 INFO Epoch[107] Batch [50] Speed: 579.75 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:05:10,190 INFO Epoch[107] Batch [100]        Speed: 586.35 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:05:21,215 INFO Epoch[107] Batch [150]        Speed: 580.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:05:32,137 INFO Epoch[107] Batch [200]        Speed: 585.99 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:05:43,178 INFO Epoch[107] Batch [250]        Speed: 579.69 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:05:54,114 INFO Epoch[107] Batch [300]        Speed: 585.23 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:06:05,051 INFO Epoch[107] Batch [350]        Speed: 585.18 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:06:13,828 INFO Epoch[107] Train-accuracy=1.000000
   > 2019-08-21 15:06:13,828 INFO Epoch[107] Time cost=85.748
   > 2019-08-21 15:06:14,304 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0108.params"
   > 2019-08-21 15:06:17,988 INFO Epoch[107] Validation-accuracy=0.808393
   > 2019-08-21 15:06:29,188 INFO Epoch[108] Batch [50] Speed: 580.02 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:06:40,126 INFO Epoch[108] Batch [100]        Speed: 585.14 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:06:51,140 INFO Epoch[108] Batch [150]        Speed: 581.09 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:07:02,082 INFO Epoch[108] Batch [200]        Speed: 584.94 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:07:13,099 INFO Epoch[108] Batch [250]        Speed: 580.91 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:07:24,026 INFO Epoch[108] Batch [300]        Speed: 585.75 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:07:35,013 INFO Epoch[108] Batch [350]        Speed: 582.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:07:43,736 INFO Epoch[108] Train-accuracy=1.000000
   > 2019-08-21 15:07:43,736 INFO Epoch[108] Time cost=85.745
   > 2019-08-21 15:07:44,222 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0109.params"
   > 2019-08-21 15:07:47,909 INFO Epoch[108] Validation-accuracy=0.808393
   > 2019-08-21 15:07:59,108 INFO Epoch[109] Batch [50] Speed: 579.98 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:08:10,031 INFO Epoch[109] Batch [100]        Speed: 585.89 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:08:21,058 INFO Epoch[109] Batch [150]        Speed: 580.46 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:08:31,989 INFO Epoch[109] Batch [200]        Speed: 585.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:08:43,019 INFO Epoch[109] Batch [250]        Speed: 580.21 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:08:53,955 INFO Epoch[109] Batch [300]        Speed: 585.25 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:09:04,927 INFO Epoch[109] Batch [350]        Speed: 583.32 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:09:13,450 INFO Epoch[109] Train-accuracy=1.000000
   > 2019-08-21 15:09:13,450 INFO Epoch[109] Time cost=85.537
   > 2019-08-21 15:09:13,993 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0110.params"
   > 2019-08-21 15:09:17,687 INFO Epoch[109] Validation-accuracy=0.808894
   > 2019-08-21 15:09:28,865 INFO Epoch[110] Batch [50] Speed: 581.00 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:09:39,823 INFO Epoch[110] Batch [100]        Speed: 584.06 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:09:50,853 INFO Epoch[110] Batch [150]        Speed: 580.24 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:10:01,799 INFO Epoch[110] Batch [200]        Speed: 584.72 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:10:12,807 INFO Epoch[110] Batch [250]        Speed: 581.41 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:10:23,746 INFO Epoch[110] Batch [300]        Speed: 585.07 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:10:34,701 INFO Epoch[110] Batch [350]        Speed: 584.21 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:10:43,443 INFO Epoch[110] Train-accuracy=1.000000
   > 2019-08-21 15:10:43,444 INFO Epoch[110] Time cost=85.750
   > 2019-08-21 15:10:43,950 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0111.params"
   > 2019-08-21 15:10:47,624 INFO Epoch[110] Validation-accuracy=0.809395
   > 2019-08-21 15:10:58,837 INFO Epoch[111] Batch [50] Speed: 579.01 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:11:09,778 INFO Epoch[111] Batch [100]        Speed: 584.96 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:11:20,818 INFO Epoch[111] Batch [150]        Speed: 579.73 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:11:31,741 INFO Epoch[111] Batch [200]        Speed: 585.97 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:11:42,760 INFO Epoch[111] Batch [250]        Speed: 580.79 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:11:53,710 INFO Epoch[111] Batch [300]        Speed: 584.50 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:12:04,695 INFO Epoch[111] Batch [350]        Speed: 582.66 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:12:13,145 INFO Epoch[111] Train-accuracy=1.000000
   > 2019-08-21 15:12:13,145 INFO Epoch[111] Time cost=85.517
   > 2019-08-21 15:12:13,753 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0112.params"
   > 2019-08-21 15:12:17,346 INFO Epoch[111] Validation-accuracy=0.809796
   > 2019-08-21 15:12:28,647 INFO Epoch[112] Batch [50] Speed: 579.15 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:12:39,575 INFO Epoch[112] Batch [100]        Speed: 585.65 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:12:50,609 INFO Epoch[112] Batch [150]        Speed: 580.05 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:13:01,555 INFO Epoch[112] Batch [200]        Speed: 584.72 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:13:12,569 INFO Epoch[112] Batch [250]        Speed: 581.06 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:13:23,508 INFO Epoch[112] Batch [300]        Speed: 585.09 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:13:34,442 INFO Epoch[112] Batch [350]        Speed: 585.36 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:13:43,220 INFO Epoch[112] Train-accuracy=1.000000
   > 2019-08-21 15:13:43,220 INFO Epoch[112] Time cost=85.863
   > 2019-08-21 15:13:43,691 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0113.params"
   > 2019-08-21 15:13:47,496 INFO Epoch[112] Validation-accuracy=0.808544
   > 2019-08-21 15:13:58,677 INFO Epoch[113] Batch [50] Speed: 581.74 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:14:09,644 INFO Epoch[113] Batch [100]        Speed: 583.58 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:14:20,659 INFO Epoch[113] Batch [150]        Speed: 581.03 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:14:31,575 INFO Epoch[113] Batch [200]        Speed: 586.29 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:14:42,617 INFO Epoch[113] Batch [250]        Speed: 579.65 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:14:53,568 INFO Epoch[113] Batch [300]        Speed: 584.44 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:15:04,536 INFO Epoch[113] Batch [350]        Speed: 583.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:15:13,289 INFO Epoch[113] Train-accuracy=1.000000
   > 2019-08-21 15:15:13,289 INFO Epoch[113] Time cost=85.788
   > 2019-08-21 15:15:13,752 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0114.params"
   > 2019-08-21 15:15:17,433 INFO Epoch[113] Validation-accuracy=0.809295
   > 2019-08-21 15:15:28,608 INFO Epoch[114] Batch [50] Speed: 581.65 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:15:39,571 INFO Epoch[114] Batch [100]        Speed: 583.82 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:15:50,596 INFO Epoch[114] Batch [150]        Speed: 580.49 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:16:01,509 INFO Epoch[114] Batch [200]        Speed: 586.49 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:16:12,562 INFO Epoch[114] Batch [250]        Speed: 579.06 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:16:23,496 INFO Epoch[114] Batch [300]        Speed: 585.35 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:16:34,485 INFO Epoch[114] Batch [350]        Speed: 582.38 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:16:43,013 INFO Epoch[114] Train-accuracy=1.000000
   > 2019-08-21 15:16:43,013 INFO Epoch[114] Time cost=85.574
   > 2019-08-21 15:16:43,490 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0115.params"
   > 2019-08-21 15:16:47,180 INFO Epoch[114] Validation-accuracy=0.810096
   > 2019-08-21 15:16:58,327 INFO Epoch[115] Batch [50] Speed: 582.78 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:17:09,274 INFO Epoch[115] Batch [100]        Speed: 584.64 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:17:20,266 INFO Epoch[115] Batch [150]        Speed: 582.26 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:17:31,212 INFO Epoch[115] Batch [200]        Speed: 584.71 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:17:42,240 INFO Epoch[115] Batch [250]        Speed: 580.35 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:17:53,193 INFO Epoch[115] Batch [300]        Speed: 584.34 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:18:04,132 INFO Epoch[115] Batch [350]        Speed: 585.06 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:18:12,908 INFO Epoch[115] Train-accuracy=1.000000
   > 2019-08-21 15:18:12,908 INFO Epoch[115] Time cost=85.724
   > 2019-08-21 15:18:13,719 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0116.params"
   > 2019-08-21 15:18:17,415 INFO Epoch[115] Validation-accuracy=0.809395
   > 2019-08-21 15:18:28,598 INFO Epoch[116] Batch [50] Speed: 580.48 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:18:39,551 INFO Epoch[116] Batch [100]        Speed: 584.33 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:18:50,613 INFO Epoch[116] Batch [150]        Speed: 578.62 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:19:01,524 INFO Epoch[116] Batch [200]        Speed: 586.59 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:19:12,540 INFO Epoch[116] Batch [250]        Speed: 580.95 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:19:23,489 INFO Epoch[116] Batch [300]        Speed: 584.56 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:19:34,465 INFO Epoch[116] Batch [350]        Speed: 583.09 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:19:43,194 INFO Epoch[116] Train-accuracy=1.000000
   > 2019-08-21 15:19:43,194 INFO Epoch[116] Time cost=85.772
   > 2019-08-21 15:19:43,762 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0117.params"
   > 2019-08-21 15:19:47,442 INFO Epoch[116] Validation-accuracy=0.810397
   > 2019-08-21 15:19:58,636 INFO Epoch[117] Batch [50] Speed: 580.21 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:20:09,557 INFO Epoch[117] Batch [100]        Speed: 586.03 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:20:20,582 INFO Epoch[117] Batch [150]        Speed: 581.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:20:31,518 INFO Epoch[117] Batch [200]        Speed: 585.26 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:20:42,522 INFO Epoch[117] Batch [250]        Speed: 581.64 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:20:53,472 INFO Epoch[117] Batch [300]        Speed: 584.48 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:21:04,418 INFO Epoch[117] Batch [350]        Speed: 584.68 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:21:12,945 INFO Epoch[117] Train-accuracy=1.000000
   > 2019-08-21 15:21:12,945 INFO Epoch[117] Time cost=85.498
   > 2019-08-21 15:21:13,918 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0118.params"
   > 2019-08-21 15:21:17,638 INFO Epoch[117] Validation-accuracy=0.810697
   > 2019-08-21 15:21:28,845 INFO Epoch[118] Batch [50] Speed: 580.01 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:21:39,783 INFO Epoch[118] Batch [100]        Speed: 585.11 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:21:50,800 INFO Epoch[118] Batch [150]        Speed: 580.94 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:22:01,742 INFO Epoch[118] Batch [200]        Speed: 584.92 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:22:12,762 INFO Epoch[118] Batch [250]        Speed: 580.80 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:22:23,670 INFO Epoch[118] Batch [300]        Speed: 586.74 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:22:34,658 INFO Epoch[118] Batch [350]        Speed: 582.47 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:22:43,422 INFO Epoch[118] Train-accuracy=1.000000
   > 2019-08-21 15:22:43,422 INFO Epoch[118] Time cost=85.778
   > 2019-08-21 15:22:43,882 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0119.params"
   > 2019-08-21 15:22:47,569 INFO Epoch[118] Validation-accuracy=0.810397
   > 2019-08-21 15:22:58,762 INFO Epoch[119] Batch [50] Speed: 579.76 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:23:09,650 INFO Epoch[119] Batch [100]        Speed: 587.79 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:23:20,677 INFO Epoch[119] Batch [150]        Speed: 580.44 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:23:31,628 INFO Epoch[119] Batch [200]        Speed: 584.44 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:23:42,648 INFO Epoch[119] Batch [250]        Speed: 580.75 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:23:53,598 INFO Epoch[119] Batch [300]        Speed: 584.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:24:04,587 INFO Epoch[119] Batch [350]        Speed: 582.41 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:24:13,021 INFO Epoch[119] Train-accuracy=1.000000
   > 2019-08-21 15:24:13,021 INFO Epoch[119] Time cost=85.445
   > 2019-08-21 15:24:13,516 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0120.params"
   > 2019-08-21 15:24:17,140 INFO Epoch[119] Validation-accuracy=0.810497
   > 2019-08-21 15:24:17,227 INFO Update[46876]: Change learning rate to 
1.00000e-03
   > 2019-08-21 15:24:28,413 INFO Epoch[120] Batch [50] Speed: 582.99 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:24:39,364 INFO Epoch[120] Batch [100]        Speed: 584.45 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:24:50,322 INFO Epoch[120] Batch [150]        Speed: 584.06 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:25:01,296 INFO Epoch[120] Batch [200]        Speed: 583.25 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:25:12,305 INFO Epoch[120] Batch [250]        Speed: 581.35 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:25:23,248 INFO Epoch[120] Batch [300]        Speed: 584.86 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:25:34,161 INFO Epoch[120] Batch [350]        Speed: 586.45 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:25:42,945 INFO Epoch[120] Train-accuracy=1.000000
   > 2019-08-21 15:25:42,945 INFO Epoch[120] Time cost=85.793
   > 2019-08-21 15:25:43,405 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0121.params"
   > 2019-08-21 15:25:47,191 INFO Epoch[120] Validation-accuracy=0.811313
   > 2019-08-21 15:25:58,395 INFO Epoch[121] Batch [50] Speed: 579.68 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:26:09,312 INFO Epoch[121] Batch [100]        Speed: 586.24 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:26:20,311 INFO Epoch[121] Batch [150]        Speed: 581.91 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:26:31,229 INFO Epoch[121] Batch [200]        Speed: 586.17 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:26:42,258 INFO Epoch[121] Batch [250]        Speed: 580.33 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:26:53,214 INFO Epoch[121] Batch [300]        Speed: 584.16 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:27:04,179 INFO Epoch[121] Batch [350]        Speed: 583.70 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:27:12,942 INFO Epoch[121] Train-accuracy=1.000000
   > 2019-08-21 15:27:12,942 INFO Epoch[121] Time cost=85.745
   > 2019-08-21 15:27:13,446 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0122.params"
   > 2019-08-21 15:27:17,130 INFO Epoch[121] Validation-accuracy=0.809696
   > 2019-08-21 15:27:28,333 INFO Epoch[122] Batch [50] Speed: 579.49 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:27:39,235 INFO Epoch[122] Batch [100]        Speed: 587.09 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:27:50,280 INFO Epoch[122] Batch [150]        Speed: 579.42 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:28:01,210 INFO Epoch[122] Batch [200]        Speed: 585.58 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:28:12,214 INFO Epoch[122] Batch [250]        Speed: 581.64 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:28:23,151 INFO Epoch[122] Batch [300]        Speed: 585.18 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:28:34,108 INFO Epoch[122] Batch [350]        Speed: 584.09 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:28:42,642 INFO Epoch[122] Train-accuracy=1.000000
   > 2019-08-21 15:28:42,642 INFO Epoch[122] Time cost=85.507
   > 2019-08-21 15:28:43,123 INFO Saved checkpoint to 
"image-classifier-resnet18_v2-0123.params"
   > 2019-08-21 15:28:46,802 INFO Epoch[122] Validation-accuracy=0.810497
   > 2019-08-21 15:28:57,993 INFO Epoch[123] Batch [50] Speed: 580.61 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:29:08,914 INFO Epoch[123] Batch [100]        Speed: 586.02 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:29:19,958 INFO Epoch[123] Batch [150]        Speed: 579.49 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:29:30,868 INFO Epoch[123] Batch [200]        Speed: 586.67 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:29:41,904 INFO Epoch[123] Batch [250]        Speed: 579.92 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:29:52,859 INFO Epoch[123] Batch [300]        Speed: 584.22 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:30:03,772 INFO Epoch[123] Batch [350]        Speed: 586.51 
samples/sec       accuracy=1.000000
   > 2019-08-21 15:30:12,574 INFO Epoch[123] Train-accuracy=1.000000
   > 2019-08-21 15:30:12,574 INFO Epoch[123] Time cost=85.767
   

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
[email protected]


With regards,
Apache Git Services

Reply via email to