ctcyang commented on issue #11237: Bring back MXNET_GPU_COPY_NTHREADS env 
URL: https://github.com/apache/incubator-mxnet/pull/11237#issuecomment-396778091
   When it's set to 1, copies between GPUs are serialized. Even between 2 GPUs, 
if GPU 0 is currently sending something to 1 on one stream, and GPU 1 wants to 
send something to 0, the latter send will have to wait leaving the 1 -> 0 link 

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

With regards,
Apache Git Services

Reply via email to