haojin2 commented on issue #11179: [MXNET-404] elemwise_add/sub between rsp and rsp on GPU URL: https://github.com/apache/incubator-mxnet/pull/11179#issuecomment-395226376 Benchmark results: kWriteTo: (lhs_density rhs_density speedup) 1.00 % 1.00 % 25.124997331340733 1.00 % 0.50 % 31.238362675588835 1.00 % 0.10 % 39.14725913534424 1.00 % 0.05 % 40.186331497357656 1.00 % 0.01 % 41.54522092845207 1.00 % 0.00 % 115.1436676461348 0.50 % 1.00 % 30.684299577090243 0.50 % 0.50 % 41.066164904788266 0.50 % 0.10 % 55.053740609087725 0.50 % 0.05 % 57.572661839483324 0.50 % 0.01 % 59.64072908956329 0.50 % 0.00 % 173.54969421069572 0.10 % 1.00 % 38.829209311971795 0.10 % 0.50 % 55.40661678968209 0.10 % 0.10 % 82.4112095641801 0.10 % 0.05 % 87.61740457731939 0.10 % 0.01 % 93.37161339877105 0.10 % 0.00 % 306.6551990025265 0.05 % 1.00 % 39.83933545753898 0.05 % 0.50 % 57.84548585858899 0.05 % 0.10 % 87.84864769131102 0.05 % 0.05 % 95.30841559924941 0.05 % 0.01 % 101.20527355911096 0.05 % 0.00 % 334.61053120754985 0.01 % 1.00 % 41.291302756016655 0.01 % 0.50 % 59.7229061419413 0.01 % 0.10 % 95.01911403455347 0.01 % 0.05 % 101.25847977888479 0.01 % 0.01 % 109.54648495558651 0.01 % 0.00 % 365.9305234720645 0.00 % 1.00 % 119.17642326889458 0.00 % 0.50 % 181.91244221692375 0.00 % 0.10 % 302.7410802494129 0.00 % 0.05 % 318.57223936052355 0.00 % 0.01 % 360.25671221787485 0.00 % 0.00 % 556.9824540639702 kWriteInplace on lhs: (lhs_density rhs_density speedup) 100.00 % 100.00 % 0.9877658633734423 100.00 % 1.00 % 70.37739238060738 100.00 % 0.50 % 119.9069169140413 100.00 % 0.10 % 291.33264582259096 100.00 % 0.05 % 351.9332843469742 100.00 % 0.01 % 428.11531043350476 100.00 % 0.00 % 568.4419591440868 kWriteInplace on rhs: (lhs_density rhs_density speedup) 100.00 % 100.00 % 0.9823963498050752 1.00 % 100.00 % 69.63479862099362 0.50 % 100.00 % 118.04205950892886 0.10 % 100.00 % 294.0972686031126 0.05 % 100.00 % 358.42532087562114 0.01 % 100.00 % 429.2050067814533 0.00 % 100.00 % 592.4116369131955
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