[GitHub] wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs are variant

2019-01-23 Thread GitBox
wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs 
are variant
URL: 
https://github.com/apache/incubator-mxnet/issues/13928#issuecomment-456988184
 
 
   @zhreshold solved. Thank you!


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[GitHub] wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs are variant

2019-01-22 Thread GitBox
wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs 
are variant
URL: 
https://github.com/apache/incubator-mxnet/issues/13928#issuecomment-456698039
 
 
   @zhreshold 
   I test it on the server with Ubuntu 14.04, Tesla M40(24G) x 4, CUDA 8.0 just 
now.
   The training speed is 40+ samples/sec.
   
   I think the performance drops because of driver rather than MXNet.
   The CUDA 9.0 driver installed on the server is not matched with latest MXNet.


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[GitHub] wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs are variant

2019-01-22 Thread GitBox
wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs 
are variant
URL: 
https://github.com/apache/incubator-mxnet/issues/13928#issuecomment-456607472
 
 
   @zhreshold Thank you!
   
   It’s flaky.
   I test it on the server with Ubuntu 14.04, Tesla M40(24G) x 4, CUDA 9.0.
   When I remove all dilated convolutions (the dilation of convolution is 
greater than 1),there will be no obvious difference between MXNet 1.3 and 1.5


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[GitHub] wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs are variant

2019-01-19 Thread GitBox
wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs 
are variant
URL: 
https://github.com/apache/incubator-mxnet/issues/13928#issuecomment-455779305
 
 
   @zhreshold @szha 
   Hello! I have written a minimum reproducible example which doesn't need 
dataset.
   
[Code](https://gist.githubusercontent.com/wkcn/69f0f6d2ca467816dc481a00c225104f/raw/2899896f42a920ff0fde5ff93b9a16d16aec507f/test_fcn_for_mxnet.py)
   
   I test it on a machine which owns Tesla M40 (21GB) x 4.
   Here is the result:
   MXNet 1.5.0: 10 images / sec
   MXNet 1.3.0: 40+ images / sec
   
   MXNet is installed by `pip install mxnet-cu90 --pre` or `pip install 
mxnet-cu90==1.3.0`


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[GitHub] wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs are variant

2019-01-18 Thread GitBox
wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs 
are variant
URL: 
https://github.com/apache/incubator-mxnet/issues/13928#issuecomment-455741203
 
 
   @szha
   In my experiment, the input size is (9,3,300 to 512,300 to 512), 9 is the 
batch size and 3 is the number of channels.
   I will write a minimum reproduce example later.


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[GitHub] wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs are variant

2019-01-18 Thread GitBox
wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs 
are variant
URL: 
https://github.com/apache/incubator-mxnet/issues/13928#issuecomment-455726968
 
 
   @adaa I don't know. I found the speeds are the same between two versions 
when input shapes are fixed.
   In my code, I call 'hybridize()' first, then call 
'hybridize(static_alloc=True)'.


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[GitHub] wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs are variant

2019-01-18 Thread GitBox
wkcn commented on issue #13928: MXNet 1.5.0 is slower than 1.3.0 when intputs 
are variant
URL: 
https://github.com/apache/incubator-mxnet/issues/13928#issuecomment-455717882
 
 
   @piyushghai Thanks.
   @zhreshold In my experiment, it's a fully convolutional network model(vgg16 
without FC layers), whose inputs are variant.
   I guess that the performance of faster r-cnn is also dropped in MXNrt 1.5.0.
   I will check the performance of faster r-cnn, or write a minimum reproduce 
example.


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