pengzhao-intel commented on issue #9692: cifar10 training on P100 seems not 
converging
URL: 
https://github.com/apache/incubator-mxnet/issues/9692#issuecomment-362955476
 
 
   Maybe you don't train enough epochs.
   
   The CPU backend can reach 0.81 val-accuracy at 10 epoch as below.
   
   ```
   INFO:root:Epoch[10] Batch [20]  Speed: 366.76 samples/sec       
accuracy=0.797247
   INFO:root:Epoch[10] Batch [40]  Speed: 366.86 samples/sec       
accuracy=0.794922
   INFO:root:Epoch[10] Batch [60]  Speed: 366.83 samples/sec       
accuracy=0.783203
   INFO:root:Epoch[10] Batch [80]  Speed: 366.59 samples/sec       
accuracy=0.790234
   INFO:root:Epoch[10] Batch [100] Speed: 366.76 samples/sec       
accuracy=0.783594
   INFO:root:Epoch[10] Batch [120] Speed: 366.63 samples/sec       
accuracy=0.786719
   INFO:root:Epoch[10] Batch [140] Speed: 366.66 samples/sec       
accuracy=0.791406
   INFO:root:Epoch[10] Batch [160] Speed: 366.85 samples/sec       
accuracy=0.794141
   INFO:root:Epoch[10] Batch [180] Speed: 366.65 samples/sec       
accuracy=0.795312
   INFO:root:Epoch[10] Batch [200] Speed: 366.67 samples/sec       
accuracy=0.796484
   INFO:root:Epoch[10] Batch [220] Speed: 366.15 samples/sec       
accuracy=0.789453
   INFO:root:Epoch[10] Batch [240] Speed: 366.69 samples/sec       
accuracy=0.802734
   INFO:root:Epoch[10] Batch [260] Speed: 366.19 samples/sec       
accuracy=0.780859
   INFO:root:Epoch[10] Batch [280] Speed: 366.80 samples/sec       
accuracy=0.799219
   INFO:root:Epoch[10] Batch [300] Speed: 366.82 samples/sec       
accuracy=0.805078
   INFO:root:Epoch[10] Batch [320] Speed: 366.93 samples/sec       
accuracy=0.791797
   INFO:root:Epoch[10] Batch [340] Speed: 366.84 samples/sec       
accuracy=0.802734
   INFO:root:Epoch[10] Batch [360] Speed: 367.04 samples/sec       
accuracy=0.779687
   INFO:root:Epoch[10] Batch [380] Speed: 374.32 samples/sec       
accuracy=0.809766
   INFO:root:Epoch[10] Train-accuracy=0.788194
   INFO:root:Epoch[10] Time cost=135.843
   INFO:root:Epoch[10] Validation-accuracy=0.811999
   ```
   

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