luobao-intel commented on issue #11664: Fall back when sparse arrays are passed to MKLDNN-enabled operators URL: https://github.com/apache/incubator-mxnet/pull/11664#issuecomment-412392000 The training and inference performance of regression verifying for fallback merge is shown as follows. This data is collected on commit 3ea67a7a16cd20cc982704dd6da284fd79c8c3eb. The training comparison: Topo | batchsize | 6148（fallback）| 6148（origin) | -------- | :-----: | :----: |:----: | alexnet |1 |30.594143 |31.317253 | |2 |41.044092 |41.132786 | |4 |80.769897 |81.800255 | |8 |133.454369 |127.187418 ||16 |224.20456 |221.552398 | |32 |302.540959 |305.953074 | |64 |383.023917 |330.386532 | |128 |447.751747 |435.501388 | |256 |477.884483 |474.643253 vgg-16 | 1 |9.848415 |9.811869 | |2 |12.403094 |12.305232 ||4 |17.652585 |17.385885 | |8 |22.634356 |20.478328 ||16 |27.60285 |27.545312 | |32 |31.050534 |30.916987 | |64 |33.113762 |32.895624 | |128 |34.623087 |34.604778 | |256 |35.412343 |35.241626 vgg-19 | 1 |8.483369 |8.561665 ||2 |10.670349 |10.639146 | |4 |15.133063 |15.205443 | |8 |19.301709 |19.264988 | |16 |22.8069 |23.004417 | |32 |25.658372 |25.787008 | |64 |27.210528 |27.148756 | |128 |28.396534 |28.622843 | |256 | 28.990824 |28.944935 inception-bn |1 |5.173929 |5.113685 | |2 |9.713608 |9.612722 | |4 |18.292555 |17.625253 | |8 |32.262617 |32.123224 | |16 |51.378436 |50.281799 | |32 |71.756796 |77.19132 | |64 |99.396415 |101.789003 | |128 |122.943234 |125.025602 | |256 |140.761579 |140.559997 inception-v3 |1 |3.647243 |3.701843 | |2 |6.893006 |7.003765 ||4 |12.292691 |12.322165 | |8 |20.018688 |20.248172 | |16 |29.733195 |29.502392 ||32 |39.961187 |39.015816 | |64 |46.334718 |47.595459 ||128 |53.897898 |54.346451 ||256 |58.247023 |58.307715 resnet-50 | 1 |5.828596 |5.758312 | |2 |9.999834 |9.925494 | |4 |17.197613 |16.971942 | |8 |27.336548 |26.727552 | |16 |39.047838 |37.635901 | |32 |51.535267 |50.304822 | |64 |60.800547 |59.694137 | |128 | 68.016266 |66.886088 ||256 |73.783432 |72.118631 resnet-152 |1 |2.073641 |2.020319 | |2 |3.745274 |3.577454 ||4 |6.488948 |6.380499 | |8 |10.482311 |10.37387 | |16 |15.354603 |14.47856 | |32 |19.90136 |19.666869 | |64 |25.205104 |24.286143 | |128 |28.272118 |28.342906 | |256 |30.751341 |29.938136 The Inference comparison: Topo |batchsize |6148（fallback） |6148（origin) | -------- | :-----: | :----: |:----: | alexnet |1 |230.609201 |272.974964 ||2 |459.347717 |418.977067 ||4 |562.738327 |500.14998 ||8 |757.427326 |683.123778 ||16 |995.188787 |1010.835509 ||32 |1236.91575 |1220.31215 ||64 |1386.149118 |1310.73248 ||128 |1492.969058 |1059.182116 ||256 |1516.787892 |1502.325897 vgg-16 |1 |64.936414 |62.079648 ||2 |84.860327 |82.680198 ||4 |88.850584 |89.668909 ||8 |98.573954 |98.142158 ||16 |114.243305 |114.564623 ||32 |117.061494 |116.955362 ||64 |116.544261 |119.016377 ||128| 117.818935 |119.549992 ||256 |120.201841 |119.661409 vgg-19 |1 |56.805177 |54.132415 ||2 |71.964449 |70.584329 ||4 |77.130441 |75.984336 ||8 |84.741283 |83.674499 ||16 |94.627382 |94.114408 ||32 |96.506882 |95.726291 ||64 |95.06602 |96.789072 ||128 |97.67915 |96.973608 ||256| 97.465934 |96.771837 inception-bn |1 |103.438399 |103.472951 ||2 |166.834318 |161.873053 ||4 |255.293207 |250.687353 ||8 |340.244836 |333.390418 ||16 |410.579713 |406.384 ||32 |452.503148 |447.816195 ||64 |490.925741 |467.791765 ||128 |493.556792 |497.755161 ||256 |504.554601 |483.210319 inception-v3 |1 |51.675768 |51.394543 ||2 |84.020412 |83.020656 ||4 |117.211207 |118.202891 ||8 |145.685021 |144.755562 ||16 |164.314623 |161.190974 ||32 |181.601478 |177.47979 ||64 |187.68821 |183.350203 ||128 |187.519656 |186.671198 ||256 |190.363415 |185.131233 resnet-50 |1 |74.352261 |71.926143 ||2 |105.118596 |100.971862 ||4 |136.682507 |129.251114 ||8 |160.903148 |150.033564 ||16 |186.371277 |184.590927 ||32 |210.353603 |197.494244 ||64 |220.03369 |205.50499 ||128| 222.752326 |209.56644 ||256 |220.268782 |202.993866 resnet-152 |1 |31.555538 |30.415254 ||2 |44.313238 |41.896732 ||4 |56.402015 |53.602173 ||8 |66.893727 |61.240171 ||16 |79.20712 |73.083458 ||32 |83.782056 |82.280132 ||64 |93.311579 |85.641401 ||128 |93.520913 |87.348002 ||256| 89.06415 |83.397316
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