[GitHub] haojin2 commented on issue #11330: [MXNET-537] add_n(dense, csr, dense) = dense and add_n([dense, csr, rsp]*, dense, [dense, csr, rsp]*) = dense on CPU & GPU

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haojin2 commented on issue #11330: [MXNET-537] add_n(dense, csr, dense) = dense and add_n([dense, csr, rsp]*, dense, [dense, csr, rsp]*) = dense on CPU & GPU
URL: https://github.com/apache/incubator-mxnet/pull/11330#issuecomment-398581169
 
 
   Benchmark results for warp-optimized GPU kernel for elemwise_add/sub(dense, csr):
   ([density%]  [new speedup of write inplace] [old speedup of write inplace])
   ([density%]  [new speedup of write to] [old speedup of write to])
   1.00% 4.3422253664233255  1.1133807433946643
   1.00% 1.8064753025920386  1.1127745540337441
   0.50% 8.719801584535675  1.2989243065699914
   0.50% 2.2845434302137857  1.2954892083078022
   0.10% 51.95314630061374  1.4716730306016637
   0.10% 2.878010179453661  1.4621131161544634
   0.05% 90.41164608500259  1.4950209892594164
   0.05% 2.9590177057354445  1.494533324414405
   0.01% 165.45560871876663  1.5066270652228635
   0.01% 2.9965883337578574  1.4932449464071242
   benchmark script is the same one used in #10550 

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