ndeepesh commented on issue #18734: URL: https://github.com/apache/incubator-mxnet/issues/18734#issuecomment-703184928
Thanks @szha . @ptrendx Can you help answer some questions below? 1. We dont see any training failures due to cudaInitialization error in multiprocesssing environment. Is this expected? Are there any side effects to this? 2. We see this issue intermittently and not all training jobs are affected. Here is the exact warning/error message we get in logs ``` [23:24:18] src/engine/threaded_engine_perdevice.cc:101: Ignore CUDA Error [23:24:18] /root/pip_build/mxnet-build/3rdparty/mshadow/mshadow/./tensor_gpu-inl.h:35: Check failed: e == cudaSuccess: CUDA: initialization error Stack trace: [bt] (0) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x6e305b) [0x7f0d92f4b05b] [bt] (1) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x38a6622) [0x7f0d9610e622] [bt] (2) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x38c9d1e) [0x7f0d96131d1e] [bt] (3) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x38bc6e1) [0x7f0d961246e1] [bt] (4) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x38b2291) [0x7f0d9611a291] [bt] (5) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x38b31e4) [0x7f0d9611b1e4] [bt] (6) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(mxnet::NDArray::Chunk::~Chunk()+0x48a) [0x7f0d96356e3a] [bt] (7) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(+0x6e680a) [0x7f0d92f4e80a] [bt] (8) /home/ubuntu/anaconda3/envs/mxnet_p36/lib/python3.6/site-packages/mxnet/libmxnet.so(MXNDArrayFree+0x54) [0x7f0d96082f44] ``` ---------------------------------------------------------------- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
