piiswrong commented on issue #9444: enabling multithreading in broadcast_reduce URL: https://github.com/apache/incubator-mxnet/pull/9444#issuecomment-357815699 LGTM. FYI, the speed of broadcast reduce can be further increased (5x ~ 10x factor) if it uses LaunchEx https://github.com/apache/incubator-mxnet/commit/23a929451ef8f05dfbd49bcd7fe0381115546e8b#diff-c7d5e7c79e0ac86ec5544f46ebafe1c4R176 I only did it for binary_broadcast. You are welcome to contribute to the other parts if you want
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