Created by: dzhwinter

AFAIK, some operation on Eigen Tensor is quite slow. Please be careful if you use the broadcast, chip operations. Here is a detail list of many operators.

                     iterations      ns/op
BM_algebraicFunc/10       500000       3310    30.21 MFlops/s
BM_algebraicFunc/80       500000       3764  1700.24 MFlops/s
BM_algebraicFunc/640      200000      14676 27908.66 MFlops/s
BM_algebraicFunc/4K         2000     845890 29554.65 MFlops/s
BM_broadcasting/10        500000       3357    29.79 MFlops/s
BM_broadcasting/80        500000       3375  1895.82 MFlops/s
BM_broadcasting/640       500000       4420 92663.99 MFlops/s
BM_broadcasting/4K         10000     267284 93533.46 MFlops/s
BM_coeffWiseOp/10         500000       3266    91.83 MFlops/s
BM_coeffWiseOp/80         500000       3321  5780.22 MFlops/s
BM_coeffWiseOp/640        200000      14623 84028.95 MFlops/s
BM_coeffWiseOp/4K           2000     850300 88204.08 MFlops/s
BM_colChip/10             500000       4011     2.49 MFlops/s
BM_colChip/80             500000       3919    20.41 MFlops/s
BM_colChip/640            500000       3197   200.15 MFlops/s
BM_colChip/4K             500000       3233  1546.26 MFlops/s
BM_colReduction/10        500000       3478    28.75 MFlops/s
BM_colReduction/80        200000      11161   573.42 MFlops/s
BM_colReduction/640       200000       7870 52042.19 MFlops/s
BM_colReduction/4K          5000     308427 81056.28 MFlops/s
BM_contraction_64xNxN/10     500000       7090  1805.14 MFlops/s
BM_contraction_64xNxN/80     100000      15501 52845.46 MFlops/s
BM_contraction_64xNxN/640      50000      46078 1137805.85 MFlops/s
BM_contraction_64xNxN/4K       2000     897852 3564061.12 MFlops/s
BM_contraction_Nx64xN/10     200000      13725   932.55 MFlops/s
BM_contraction_Nx64xN/80     200000      14890 55013.27 MFlops/s
BM_contraction_Nx64xN/640     100000      21537 2434306.21 MFlops/s
BM_contraction_Nx64xN/4K       2000    1181087 2709366.40 MFlops/s
BM_contraction_NxNx64/10     200000       8660  1477.96 MFlops/s
BM_contraction_NxNx64/80     100000      15477 52927.86 MFlops/s
BM_contraction_NxNx64/640      50000      46470 1128214.28 MFlops/s
BM_contraction_NxNx64/4K       5000     564143 5672317.32 MFlops/s
BM_contraction_NxNxN/10     200000       8654   231.08 MFlops/s
BM_contraction_NxNxN/80     100000      15638 65479.29 MFlops/s
BM_contraction_NxNxN/640      20000      98106 5344083.13 MFlops/s
BM_contraction_NxNxN/4K         50   42695967 5855353.87 MFlops/s
BM_convolution_1x7/128     100000      16215 13482.31 MFlops/s
BM_convolution_1x7/1K      20000      91143 160121.78 MFlops/s
BM_convolution_1x7/4K       1000    2009086 173999.44 MFlops/s
BM_convolution_4x7/128    1000000       1633 522961.93 MFlops/s
BM_convolution_4x7/1K    1000000       1565 37174331.84 MFlops/s
BM_convolution_4x7/4K    1000000       1614 865610908.25 MFlops/s
BM_convolution_64x7/128      10000     106848 66498.74 MFlops/s
BM_convolution_64x7/1K       5000     730637 1199713.33 MFlops/s
BM_convolution_64x7/4K        100   16002777 1380461.57 MFlops/s
BM_convolution_7x1/128     200000      11202 19515.29 MFlops/s
BM_convolution_7x1/1K      50000      44060 331224.30 MFlops/s
BM_convolution_7x1/4K       2000     861338 405856.86 MFlops/s
BM_convolution_7x4/128     100000      18575 45973.54 MFlops/s
BM_convolution_7x4/1K      20000      84771 686610.84 MFlops/s
BM_convolution_7x4/4K       1000    1775696 787004.51 MFlops/s
BM_convolution_7x64/128      50000      40714 174516.31 MFlops/s
BM_convolution_7x64/1K       5000     625639 1401054.53 MFlops/s
BM_convolution_7x64/4K        100   14568089 1516411.54 MFlops/s
BM_fullReduction/10       500000       3428    29.17 MFlops/s
BM_fullReduction/80       500000       3428  1866.83 MFlops/s
BM_fullReduction/640      200000       7429 55135.02 MFlops/s
BM_fullReduction/4K        10000     276669 90360.50 MFlops/s
BM_memcpy/10              500000       3919    25.52 MFlops/s
BM_memcpy/80              500000       3847  1663.29 MFlops/s
BM_memcpy/640             500000       6807 60169.97 MFlops/s
BM_memcpy/4K                5000     564178 44312.24 MFlops/s
BM_padding/10             500000       3332    30.01 MFlops/s
BM_padding/80             500000       3349  1910.98 MFlops/s
BM_padding/640            500000       6592 62132.65 MFlops/s
BM_padding/4K               5000     577463 43292.77 MFlops/s
BM_random/10              500000       3236    30.90 MFlops/s
BM_random/80              500000       3269  1957.55 MFlops/s
BM_random/640             500000       3994 102551.78 MFlops/s
BM_random/4K               10000     266284 93884.58 MFlops/s
BM_rowChip/10             500000       3328     3.00 MFlops/s
BM_rowChip/80             500000       3220    24.84 MFlops/s
BM_rowChip/640            500000       3217   198.89 MFlops/s
BM_rowChip/4K             500000       3269  1529.47 MFlops/s
BM_rowReduction/10        500000       3317    30.14 MFlops/s
BM_rowReduction/80        500000       4868  1314.62 MFlops/s
BM_rowReduction/640        50000      50880  8050.24 MFlops/s
BM_rowReduction/4K          5000     352852 70851.06 MFlops/s
BM_shuffling/10           500000       3224    31.01 MFlops/s
BM_shuffling/80           500000       3223  1985.13 MFlops/s
BM_shuffling/640          200000      13123 31211.57 MFlops/s
BM_shuffling/4K              500    3140372  7960.84 MFlops/s
BM_slicing/10             200000      13020     7.68 MFlops/s
BM_slicing/80             200000      13710   466.81 MFlops/s
BM_slicing/640            100000      16364 25030.39 MFlops/s
BM_slicing/4K               2000     717139 34860.74 MFlops/s
BM_striding/10            500000       3483    28.70 MFlops/s
BM_striding/80            500000       4039  1584.26 MFlops/s
BM_striding/640           500000       3593 113968.07 MFlops/s
BM_striding/4K              5000     320700 77954.47 MFlops/s
BM_transcendentalFunc/10     500000       3175    31.49 MFlops/s
BM_transcendentalFunc/80     500000       3211  1992.60 MFlops/s
BM_transcendentalFunc/640     200000      14442 28359.91 MFlops/s
BM_transcendentalFunc/4K       2000     846544 29531.83 MFlops/s
BM_typeCasting/10         500000       3192    31.33 MFlops/s
BM_typeCasting/80         500000       3289  1945.38 MFlops/s
BM_typeCasting/640        500000       6875 59571.46 MFlops/s
BM_typeCasting/4K           5000     604207 41376.54 MFlops/s