[GitHub] [incubator-mxnet] bgawrych opened a new pull request, #21004: broadcast_like CPU optimization

Tue, 19 Apr 2022 06:03:05 -0700 


bgawrych opened a new pull request, #21004:
URL: https://github.com/apache/incubator-mxnet/pull/21004

   ## Description ##
   
![image](https://user-images.githubusercontent.com/59644968/164009454-b838269b-20d2-4626-94a6-8c66f88d109d.png)
   
   ~1150 shapes examined:
   
[broadcast_like.xlsx](https://github.com/apache/incubator-mxnet/files/8513171/broadcast_like.xlsx)
   
   Average speedup: -23%
   Worst: 68%
   Best: -97%
   
   Average speedup if better: -41%
   Average slowdown if worse: 4%
   
   
   
   quantized bert large before optimization:
   
![image](https://user-images.githubusercontent.com/59644968/164009525-5c49e36f-d3f4-448b-89d7-f368c77166aa.png)
   
   after optimization:
   
![image](https://user-images.githubusercontent.com/59644968/164009559-e44e1bf7-9d8b-4413-8bcd-3dda30b423f5.png)
   
   Over 2x speedup on broadcast_like
   


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