fullfanta commented on issue #14790: training speed at 1.4.0 is slower than 1.3.1 with large number of classes. URL: https://github.com/apache/incubator-mxnet/issues/14790#issuecomment-487507313 @samskalicky I installed mxnet_cu92-1.5.0b20190428 throuth pip and noticed training speed is almost close to 1.3.1. ``` INFO:root:Epoch[0] Batch [0-20] Speed: 1001.33 samples/sec accuracy=0.001395 INFO:root:Epoch[0] Batch [20-40] Speed: 992.78 samples/sec accuracy=0.466797 INFO:root:Epoch[0] Batch [40-60] Speed: 993.50 samples/sec accuracy=0.994873 INFO:root:Epoch[0] Batch [60-80] Speed: 991.49 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [80-100] Speed: 995.76 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [100-120] Speed: 995.24 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [120-140] Speed: 990.84 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [140-160] Speed: 992.87 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [160-180] Speed: 994.61 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [180-200] Speed: 997.63 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [200-220] Speed: 987.09 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [220-240] Speed: 994.05 samples/sec accuracy=1.000000 INFO:root:Epoch[0] Batch [240-260] Speed: 994.24 samples/sec accuracy=1.000000 ```
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