Fast path for `experimental::row::equality` by divyegala · Pull Request #12676 · rapidsai/cudf

divyegala · 2023-02-02T02:02:14Z

This PR adds a fast path for primitive types similar to experimental::row::lexicographic. The compilation impact for building on bare-metal from source with command ./build.sh libcudf tests benchmarks for baseline 16m43.607s vs this branch 17m13.987s.

This PR is a part of #12593.

Algorithms and benchmarks (those that were available are linked) affected by this change:
experimental::row::equality::self_comparator

experimental::row::equality::two_table_comparator

struct_binary_ops
lists/contains
contains_scalar (This algorithm does not need a primitive type optimization because the enclosing struct already type-dispatches based on nested vs non-nested types)
contains_table
one_hot_encode

Checklist

I am familiar with the Contributing Guidelines.
New or existing tests cover these changes.
The documentation is up to date with these changes.

codecov · 2023-02-02T19:54:11Z

Codecov Report

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divyegala · 2023-02-02T22:48:22Z

group_nunique benchmarks

|  T  |  num_rows  |  null_probability  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |       Diff |   %Diff |  Status  |
|-----|------------|--------------------|------------|-------------|------------|-------------|------------|---------|----------|
| I32 |    2^12    |         0          | 402.823 us |      36.86% | 405.176 us |      35.07% |   2.353 us |   0.58% |   PASS   |
| I32 |    2^16    |         0          | 609.317 us |      12.58% | 609.058 us |      11.42% |  -0.259 us |  -0.04% |   PASS   |
| I32 |    2^20    |         0          |   3.528 ms |       0.81% |   3.526 ms |       1.59% |  -2.469 us |  -0.07% |   PASS   |
| I32 |    2^24    |         0          |  76.574 ms |       0.07% |  76.656 ms |       0.08% |  81.547 us |   0.11% |   FAIL   |
| I32 |    2^12    |        0.5         | 483.507 us |       1.31% | 488.266 us |       1.49% |   4.759 us |   0.98% |   PASS   |
| I32 |    2^16    |        0.5         | 762.067 us |       0.82% | 769.652 us |       0.94% |   7.585 us |   1.00% |   FAIL   |
| I32 |    2^20    |        0.5         |   3.577 ms |       0.28% |   3.586 ms |       0.33% |   9.691 us |   0.27% |   PASS   |
| I32 |    2^24    |        0.5         |  66.755 ms |       0.08% |  66.724 ms |       0.10% | -31.373 us |  -0.05% |   PASS   |
| I64 |    2^12    |         0          | 454.067 us |       1.04% | 464.569 us |       1.22% |  10.502 us |   2.31% |   FAIL   |
| I64 |    2^16    |         0          | 681.461 us |       0.87% | 700.918 us |       6.99% |  19.457 us |   2.86% |   FAIL   |
| I64 |    2^20    |         0          |   4.547 ms |       0.31% |   4.567 ms |       0.34% |  19.428 us |   0.43% |   FAIL   |
| I64 |    2^24    |         0          |  95.811 ms |       0.11% |  95.950 ms |       0.09% | 138.986 us |   0.15% |   FAIL   |
| I64 |    2^12    |        0.5         | 531.606 us |       1.39% | 540.718 us |       1.30% |   9.113 us |   1.71% |   FAIL   |
| I64 |    2^16    |        0.5         | 823.917 us |       0.67% | 842.901 us |       0.78% |  18.984 us |   2.30% |   FAIL   |
| I64 |    2^20    |        0.5         |   4.099 ms |       0.29% |   4.107 ms |       0.32% |   8.007 us |   0.20% |   PASS   |
| I64 |    2^24    |        0.5         |  75.938 ms |       0.05% |  75.954 ms |       0.10% |  15.545 us |   0.02% |   PASS   |

divyegala · 2023-02-02T22:51:17Z

group_rank_scan benchmarks

|  rank_method  |  data_size  |  is_sorted  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |         Diff |   %Diff |  Status  |
|---------------|-------------|-------------|------------|-------------|------------|-------------|--------------|---------|----------|
|    AVERAGE    |   1000000   |      0      |   4.041 ms |       1.78% |   4.067 ms |       2.11% |    26.080 us |   0.65% |   PASS   |
|    AVERAGE    |  10000000   |      0      |  47.015 ms |       0.24% |  46.670 ms |       0.16% |  -344.994 us |  -0.73% |   FAIL   |
|    AVERAGE    |  100000000  |      0      | 541.792 ms |       0.06% | 538.392 ms |       0.07% | -3400.241 us |  -0.63% |   FAIL   |
|    AVERAGE    |   1000000   |      1      | 364.873 us |       1.85% | 329.973 us |       6.86% |   -34.900 us |  -9.56% |   FAIL   |
|    AVERAGE    |  10000000   |      1      |   2.412 ms |       0.26% |   2.101 ms |       0.30% |  -310.856 us | -12.89% |   FAIL   |
|    AVERAGE    |  100000000  |      1      |  22.922 ms |       0.07% |  19.876 ms |       0.06% | -3045.741 us | -13.29% |   FAIL   |
|     DENSE     |   1000000   |      0      |   3.859 ms |       0.35% |   3.891 ms |       0.36% |    32.642 us |   0.85% |   FAIL   |
|     DENSE     |  10000000   |      0      |  45.843 ms |       0.24% |  45.633 ms |       0.18% |  -209.641 us |  -0.46% |   FAIL   |
|     DENSE     |  100000000  |      0      | 524.649 ms |       0.09% | 522.650 ms |       0.09% | -1999.134 us |  -0.38% |   FAIL   |
|     DENSE     |   1000000   |      1      | 200.620 us |       2.27% | 183.179 us |       1.71% |   -17.441 us |  -8.69% |   FAIL   |
|     DENSE     |  10000000   |      1      |   1.311 ms |       0.32% |   1.156 ms |       0.31% |  -154.982 us | -11.83% |   FAIL   |
|     DENSE     |  100000000  |      1      |  12.307 ms |       0.08% |  10.789 ms |       0.11% | -1517.864 us | -12.33% |   FAIL   |
|     FIRST     |   1000000   |      0      |   3.763 ms |       0.34% |   3.813 ms |       0.39% |    49.689 us |   1.32% |   FAIL   |
|     FIRST     |  10000000   |      0      |  45.153 ms |       0.18% |  45.099 ms |       0.18% |   -54.613 us |  -0.12% |   PASS   |
|     FIRST     |  100000000  |      0      | 517.302 ms |       0.10% | 516.628 ms |       0.07% |  -674.544 us |  -0.13% |   FAIL   |
|     FIRST     |   1000000   |      1      | 110.328 us |       2.32% | 110.402 us |       2.71% |     0.074 us |   0.07% |   PASS   |
|     FIRST     |  10000000   |      1      | 700.478 us |       0.35% | 701.165 us |       0.44% |     0.687 us |   0.10% |   PASS   |
|     FIRST     |  100000000  |      1      |   6.534 ms |       0.08% |   6.535 ms |       0.07% |     0.891 us |   0.01% |   PASS   |
|      MAX      |   1000000   |      0      |   3.852 ms |       0.35% |   3.887 ms |       0.35% |    35.511 us |   0.92% |   FAIL   |
|      MAX      |  10000000   |      0      |  45.723 ms |       0.14% |  45.654 ms |       0.24% |   -69.446 us |  -0.15% |   FAIL   |
|      MAX      |  100000000  |      0      | 524.283 ms |       0.08% | 522.428 ms |       0.09% | -1854.836 us |  -0.35% |   FAIL   |
|      MAX      |   1000000   |      1      | 193.703 us |       2.35% | 178.333 us |       2.15% |   -15.370 us |  -7.93% |   FAIL   |
|      MAX      |  10000000   |      1      |   1.299 ms |       0.42% |   1.146 ms |       0.43% |  -152.728 us | -11.76% |   FAIL   |
|      MAX      |  100000000  |      1      |  12.282 ms |       0.08% |  10.771 ms |       0.12% | -1510.449 us | -12.30% |   FAIL   |
|      MIN      |   1000000   |      0      |   3.855 ms |       0.32% |   3.893 ms |       0.39% |    38.661 us |   1.00% |   FAIL   |
|      MIN      |  10000000   |      0      |  45.831 ms |       0.24% |  45.620 ms |       0.17% |  -210.944 us |  -0.46% |   FAIL   |
|      MIN      |  100000000  |      0      | 524.571 ms |       0.08% | 522.666 ms |       0.07% | -1905.479 us |  -0.36% |   FAIL   |
|      MIN      |   1000000   |      1      | 199.662 us |       1.71% | 182.925 us |       2.30% |   -16.737 us |  -8.38% |   FAIL   |
|      MIN      |  10000000   |      1      |   1.304 ms |       0.29% |   1.150 ms |       0.38% |  -153.722 us | -11.79% |   FAIL   |
|      MIN      |  100000000  |      1      |  12.261 ms |       0.05% |  10.738 ms |       0.08% | -1522.587 us | -12.42% |   FAIL   |

divyegala · 2023-02-02T22:54:04Z

rank_scan benchmarks

|        T        |  null_probability  |  data_size  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |        Diff |   %Diff |  Status  |
|-----------------|--------------------|-------------|------------|-------------|------------|-------------|-------------|---------|----------|
|       I32       |         0          |    10000    |  40.527 us |     109.91% |  42.649 us |      96.94% |    2.122 us |   5.24% |   PASS   |
|       I32       |        0.1         |    10000    |  39.183 us |       5.50% |  40.670 us |      39.28% |    1.487 us |   3.80% |   PASS   |
|       I32       |        0.5         |    10000    |  39.473 us |      36.81% |  40.585 us |       5.55% |    1.112 us |   2.82% |   PASS   |
|       I32       |        0.9         |    10000    |  39.354 us |      85.62% |  40.417 us |      25.22% |    1.063 us |   2.70% |   PASS   |
|       I32       |         0          |   100000    |  39.897 us |      73.24% |  40.721 us |      35.22% |    0.825 us |   2.07% |   PASS   |
|       I32       |        0.1         |   100000    |  40.071 us |      39.53% |  41.454 us |      27.25% |    1.382 us |   3.45% |   PASS   |
|       I32       |        0.5         |   100000    |  40.037 us |      24.40% |  41.390 us |      26.40% |    1.352 us |   3.38% |   PASS   |
|       I32       |        0.9         |   100000    |  39.499 us |      21.11% |  41.247 us |       5.54% |    1.748 us |   4.43% |   PASS   |
|       I32       |         0          |   1000000   |  47.225 us |      16.26% |  46.294 us |      32.25% |   -0.931 us |  -1.97% |   PASS   |
|       I32       |        0.1         |   1000000   |  49.389 us |      20.32% |  47.466 us |       5.70% |   -1.922 us |  -3.89% |   PASS   |
|       I32       |        0.5         |   1000000   |  49.354 us |      17.73% |  47.145 us |       4.62% |   -2.210 us |  -4.48% |   PASS   |
|       I32       |        0.9         |   1000000   |  47.917 us |       4.77% |  46.006 us |       4.87% |   -1.911 us |  -3.99% |   PASS   |
|       I32       |         0          |  10000000   | 124.127 us |       1.62% | 101.254 us |       2.95% |  -22.873 us | -18.43% |   FAIL   |
|       I32       |        0.1         |  10000000   | 144.272 us |      16.48% | 113.908 us |       1.98% |  -30.363 us | -21.05% |   FAIL   |
|       I32       |        0.5         |  10000000   | 142.564 us |       1.21% | 112.959 us |      26.83% |  -29.605 us | -20.77% |   FAIL   |
|       I32       |        0.9         |  10000000   | 131.225 us |      14.27% | 103.348 us |       2.28% |  -27.878 us | -21.24% |   FAIL   |
|       I32       |         0          |  100000000  | 889.590 us |       0.27% | 643.820 us |       0.56% | -245.770 us | -27.63% |   FAIL   |
|       I32       |        0.1         |  100000000  |   1.095 ms |       3.34% | 770.303 us |       0.47% | -324.444 us | -29.64% |   FAIL   |
|       I32       |        0.5         |  100000000  |   1.076 ms |       0.20% | 753.085 us |       6.45% | -323.216 us | -30.03% |   FAIL   |
|       I32       |        0.9         |  100000000  | 950.130 us |       0.28% | 663.956 us |       0.50% | -286.174 us | -30.12% |   FAIL   |

divyegala · 2023-02-02T22:56:24Z

distinct benchmarks

|        Type        |  NumRows  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |        Diff |   %Diff |  Status  |
|--------------------|-----------|------------|-------------|------------|-------------|-------------|---------|----------|
|        bool        |   10000   | 120.161 us |      67.46% | 125.064 us |      53.77% |    4.903 us |   4.08% |   PASS   |
|        bool        |  100000   | 147.971 us |      49.32% | 144.156 us |       2.80% |   -3.814 us |  -2.58% |   PASS   |
|        bool        |  1000000  | 432.603 us |       8.39% | 372.855 us |      15.41% |  -59.748 us | -13.81% |   FAIL   |
|        bool        | 10000000  |   3.265 ms |       0.87% |   2.584 ms |       0.29% | -681.694 us | -20.88% |   FAIL   |
|         I8         |   10000   | 116.704 us |       4.54% | 120.506 us |      18.41% |    3.802 us |   3.26% |   PASS   |
|         I8         |  100000   | 140.141 us |      11.39% | 141.235 us |      11.56% |    1.095 us |   0.78% |   PASS   |
|         I8         |  1000000  | 425.493 us |       3.37% | 363.209 us |       6.88% |  -62.283 us | -14.64% |   FAIL   |
|         I8         | 10000000  |   3.218 ms |       2.16% |   2.558 ms |       2.90% | -659.794 us | -20.50% |   FAIL   |
|        I32         |   10000   | 116.704 us |       5.33% | 119.585 us |       4.28% |    2.881 us |   2.47% |   PASS   |
|        I32         |  100000   | 139.783 us |       2.47% | 143.033 us |      22.00% |    3.250 us |   2.33% |   PASS   |
|        I32         |  1000000  | 424.833 us |       7.83% | 368.011 us |       1.06% |  -56.822 us | -13.38% |   FAIL   |
|        I32         | 10000000  |   3.204 ms |       0.26% |   2.580 ms |       0.50% | -623.880 us | -19.47% |   FAIL   |
|        I64         |   10000   | 116.453 us |       4.77% | 120.659 us |      26.02% |    4.206 us |   3.61% |   PASS   |
|        I64         |  100000   | 142.435 us |       3.33% | 142.523 us |       3.96% |    0.087 us |   0.06% |   PASS   |
|        I64         |  1000000  | 424.099 us |       1.67% | 374.038 us |       7.47% |  -50.061 us | -11.80% |   FAIL   |
|        I64         | 10000000  |   3.239 ms |       1.70% |   2.692 ms |       1.96% | -547.820 us | -16.91% |   FAIL   |
|        F32         |   10000   | 116.567 us |       5.04% | 121.058 us |      19.06% |    4.491 us |   3.85% |   PASS   |
|        F32         |  100000   | 152.474 us |       3.36% | 149.195 us |       3.24% |   -3.279 us |  -2.15% |   PASS   |
|        F32         |  1000000  | 597.029 us |       0.77% | 508.815 us |       0.87% |  -88.215 us | -14.78% |   FAIL   |
|        F32         | 10000000  |   6.355 ms |       0.11% |   5.385 ms |       0.14% | -969.829 us | -15.26% |   FAIL   |
| cudf::timestamp_ms |   10000   | 116.446 us |       4.39% | 120.755 us |       4.78% |    4.310 us |   3.70% |   PASS   |
| cudf::timestamp_ms |  100000   | 141.787 us |       2.82% | 143.721 us |       2.99% |    1.934 us |   1.36% |   PASS   |
| cudf::timestamp_ms |  1000000  | 434.040 us |       0.96% | 376.607 us |      10.88% |  -57.432 us | -13.23% |   FAIL   |
| cudf::timestamp_ms | 10000000  |   3.351 ms |       0.15% |   2.716 ms |       0.23% | -634.790 us | -18.94% |   FAIL   |

divyegala · 2023-02-02T22:58:00Z

unique benchmarks

|        Type        |  KeepOption  |  NumRows  |  Sort  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |       Diff |   %Diff |  Status  |
|--------------------|--------------|-----------|--------|------------|-------------|------------|-------------|------------|---------|----------|
|        bool        |  KEEP_FIRST  |   10000   |   0    | 105.426 us |      74.45% | 106.374 us |      75.78% |   0.948 us |   0.90% |   PASS   |
|        bool        |  KEEP_FIRST  |  100000   |   0    | 125.206 us |      31.32% | 115.132 us |      26.21% | -10.074 us |  -8.05% |   PASS   |
|        bool        |  KEEP_FIRST  |  1000000  |   0    | 128.912 us |      17.26% | 121.134 us |      30.68% |  -7.778 us |  -6.03% |   PASS   |
|        bool        |  KEEP_FIRST  | 10000000  |   0    | 501.243 us |       7.45% | 455.415 us |      12.14% | -45.827 us |  -9.14% |   FAIL   |
|        bool        |  KEEP_FIRST  |   10000   |   1    |  98.486 us |       4.78% | 101.897 us |      16.95% |   3.411 us |   3.46% |   PASS   |
|        bool        |  KEEP_FIRST  |  100000   |   1    | 116.029 us |      13.19% | 115.323 us |      14.25% |  -0.706 us |  -0.61% |   PASS   |
|        bool        |  KEEP_FIRST  |  1000000  |   1    | 123.946 us |      12.56% | 117.307 us |      11.67% |  -6.639 us |  -5.36% |   PASS   |
|        bool        |  KEEP_FIRST  | 10000000  |   1    | 350.157 us |       9.46% | 303.884 us |       6.11% | -46.273 us | -13.21% |   FAIL   |
|        bool        |  KEEP_LAST   |   10000   |   0    | 101.704 us |       5.23% | 102.094 us |      19.80% |   0.390 us |   0.38% |   PASS   |
|        bool        |  KEEP_LAST   |  100000   |   0    | 116.068 us |      12.06% | 113.120 us |      13.53% |  -2.948 us |  -2.54% |   PASS   |
|        bool        |  KEEP_LAST   |  1000000  |   0    | 128.134 us |       5.93% | 120.572 us |       4.75% |  -7.562 us |  -5.90% |   FAIL   |
|        bool        |  KEEP_LAST   | 10000000  |   0    | 502.506 us |       1.54% | 453.382 us |       6.24% | -49.124 us |  -9.78% |   FAIL   |
|        bool        |  KEEP_LAST   |   10000   |   1    |  98.878 us |       3.71% | 102.312 us |       3.52% |   3.434 us |   3.47% |   PASS   |
|        bool        |  KEEP_LAST   |  100000   |   1    | 114.835 us |      14.80% | 112.770 us |       3.18% |  -2.065 us |  -1.80% |   PASS   |
|        bool        |  KEEP_LAST   |  1000000  |   1    | 124.859 us |       5.44% | 117.891 us |       4.72% |  -6.968 us |  -5.58% |   FAIL   |
|        bool        |  KEEP_LAST   | 10000000  |   1    | 364.725 us |       1.87% | 318.753 us |      11.54% | -45.972 us | -12.60% |   FAIL   |
|        bool        |  KEEP_NONE   |   10000   |   0    | 107.293 us |      24.90% | 105.603 us |      20.74% |  -1.690 us |  -1.58% |   PASS   |
|        bool        |  KEEP_NONE   |  100000   |   0    | 120.726 us |       5.05% | 115.335 us |       3.45% |  -5.391 us |  -4.47% |   FAIL   |
|        bool        |  KEEP_NONE   |  1000000  |   0    | 139.902 us |       4.78% | 128.496 us |       3.41% | -11.406 us |  -8.15% |   FAIL   |
|        bool        |  KEEP_NONE   | 10000000  |   0    | 516.635 us |       7.11% | 473.517 us |       1.32% | -43.118 us |  -8.35% |   FAIL   |
|        bool        |  KEEP_NONE   |   10000   |   1    |  73.497 us |       3.80% |  74.500 us |       3.49% |   1.003 us |   1.36% |   PASS   |
|        bool        |  KEEP_NONE   |  100000   |   1    |  90.220 us |       4.40% |  89.086 us |       4.19% |  -1.134 us |  -1.26% |   PASS   |
|        bool        |  KEEP_NONE   |  1000000  |   1    |  98.743 us |       6.48% |  90.687 us |       5.39% |  -8.056 us |  -8.16% |   FAIL   |
|        bool        |  KEEP_NONE   | 10000000  |   1    | 324.985 us |       2.12% | 279.294 us |       2.17% | -45.690 us | -14.06% |   FAIL   |
|         I8         |  KEEP_FIRST  |   10000   |   0    |  99.686 us |       3.37% |  99.481 us |      18.87% |  -0.205 us |  -0.21% |   PASS   |
|         I8         |  KEEP_FIRST  |  100000   |   0    | 102.024 us |       3.80% | 107.277 us |       3.76% |   5.253 us |   5.15% |   FAIL   |
|         I8         |  KEEP_FIRST  |  1000000  |   0    | 124.032 us |       3.24% | 117.326 us |       5.79% |  -6.706 us |  -5.41% |   FAIL   |
|         I8         |  KEEP_FIRST  | 10000000  |   0    | 557.847 us |       0.74% | 508.926 us |       6.78% | -48.921 us |  -8.77% |   FAIL   |
|         I8         |  KEEP_FIRST  |   10000   |   1    | 100.504 us |      22.63% |  98.785 us |      18.00% |  -1.720 us |  -1.71% |   PASS   |
|         I8         |  KEEP_FIRST  |  100000   |   1    | 102.409 us |       3.97% | 108.172 us |       5.04% |   5.763 us |   5.63% |   FAIL   |
|         I8         |  KEEP_FIRST  |  1000000  |   1    | 120.147 us |       4.65% | 114.199 us |       3.52% |  -5.948 us |  -4.95% |   FAIL   |
|         I8         |  KEEP_FIRST  | 10000000  |   1    | 327.512 us |       0.95% | 289.433 us |       1.71% | -38.079 us | -11.63% |   FAIL   |
|         I8         |  KEEP_LAST   |   10000   |   0    |  99.484 us |       3.02% |  99.211 us |       3.81% |  -0.273 us |  -0.27% |   PASS   |
|         I8         |  KEEP_LAST   |  100000   |   0    | 102.539 us |       2.71% | 107.346 us |       4.70% |   4.807 us |   4.69% |   FAIL   |
|         I8         |  KEEP_LAST   |  1000000  |   0    | 126.235 us |      32.39% | 119.419 us |      28.83% |  -6.816 us |  -5.40% |   PASS   |
|         I8         |  KEEP_LAST   | 10000000  |   0    | 559.780 us |       0.60% | 509.967 us |       0.73% | -49.813 us |  -8.90% |   FAIL   |
|         I8         |  KEEP_LAST   |   10000   |   1    |  98.933 us |       3.66% |  99.393 us |       4.16% |   0.460 us |   0.46% |   PASS   |
|         I8         |  KEEP_LAST   |  100000   |   1    | 102.713 us |       4.00% | 106.538 us |       3.26% |   3.825 us |   3.72% |   FAIL   |
|         I8         |  KEEP_LAST   |  1000000  |   1    | 121.187 us |       2.96% | 116.203 us |      24.24% |  -4.984 us |  -4.11% |   FAIL   |
|         I8         |  KEEP_LAST   | 10000000  |   1    | 342.069 us |       1.23% | 304.077 us |       1.43% | -37.993 us | -11.11% |   FAIL   |
|         I8         |  KEEP_NONE   |   10000   |   0    | 101.797 us |       3.71% | 102.054 us |       3.88% |   0.257 us |   0.25% |   PASS   |
|         I8         |  KEEP_NONE   |  100000   |   0    | 104.347 us |       3.15% | 110.092 us |       3.63% |   5.745 us |   5.51% |   FAIL   |
|         I8         |  KEEP_NONE   |  1000000  |   0    | 135.877 us |       2.38% | 125.295 us |       2.67% | -10.582 us |  -7.79% |   FAIL   |
|         I8         |  KEEP_NONE   | 10000000  |   0    | 530.234 us |       1.02% | 472.160 us |       1.03% | -58.073 us | -10.95% |   FAIL   |
|         I8         |  KEEP_NONE   |   10000   |   1    |  75.048 us |       4.39% |  73.788 us |       3.60% |  -1.260 us |  -1.68% |   PASS   |
|         I8         |  KEEP_NONE   |  100000   |   1    |  75.749 us |      35.99% |  79.085 us |      36.36% |   3.336 us |   4.40% |   PASS   |
|         I8         |  KEEP_NONE   |  1000000  |   1    |  94.967 us |       3.27% |  88.201 us |       3.30% |  -6.767 us |  -7.13% |   FAIL   |
|         I8         |  KEEP_NONE   | 10000000  |   1    | 303.147 us |       0.96% | 261.961 us |       1.53% | -41.186 us | -13.59% |   FAIL   |
|        I32         |  KEEP_FIRST  |   10000   |   0    | 105.230 us |       3.48% |  96.619 us |       3.92% |  -8.612 us |  -8.18% |   FAIL   |
|        I32         |  KEEP_FIRST  |  100000   |   0    | 107.823 us |       2.78% | 106.068 us |       4.22% |  -1.755 us |  -1.63% |   PASS   |
|        I32         |  KEEP_FIRST  |  1000000  |   0    | 144.364 us |       2.20% | 131.150 us |      24.23% | -13.214 us |  -9.15% |   FAIL   |
|        I32         |  KEEP_FIRST  | 10000000  |   0    | 776.929 us |       0.51% | 713.446 us |       0.69% | -63.483 us |  -8.17% |   FAIL   |
|        I32         |  KEEP_FIRST  |   10000   |   1    | 104.620 us |       3.74% |  96.617 us |       3.76% |  -8.003 us |  -7.65% |   FAIL   |
|        I32         |  KEEP_FIRST  |  100000   |   1    | 109.131 us |       3.17% | 109.100 us |       4.13% |  -0.031 us |  -0.03% |   PASS   |
|        I32         |  KEEP_FIRST  |  1000000  |   1    | 133.773 us |      28.85% | 121.925 us |      30.85% | -11.847 us |  -8.86% |   PASS   |
|        I32         |  KEEP_FIRST  | 10000000  |   1    | 399.746 us |       1.08% | 337.115 us |       1.10% | -62.631 us | -15.67% |   FAIL   |
|        I32         |  KEEP_LAST   |   10000   |   0    | 104.357 us |       3.84% |  96.855 us |       3.54% |  -7.502 us |  -7.19% |   FAIL   |
|        I32         |  KEEP_LAST   |  100000   |   0    | 107.364 us |       2.85% | 106.582 us |       5.38% |  -0.782 us |  -0.73% |   PASS   |
|        I32         |  KEEP_LAST   |  1000000  |   0    | 142.767 us |       2.04% | 129.801 us |       2.96% | -12.965 us |  -9.08% |   FAIL   |
|        I32         |  KEEP_LAST   | 10000000  |   0    | 776.177 us |       0.46% | 712.386 us |       7.93% | -63.790 us |  -8.22% |   FAIL   |
|        I32         |  KEEP_LAST   |   10000   |   1    | 104.806 us |       2.90% | 103.517 us |       6.31% |  -1.289 us |  -1.23% |   PASS   |
|        I32         |  KEEP_LAST   |  100000   |   1    | 109.649 us |       3.68% | 106.823 us |       3.87% |  -2.826 us |  -2.58% |   PASS   |
|        I32         |  KEEP_LAST   |  1000000  |   1    | 134.104 us |       3.09% | 125.278 us |      31.58% |  -8.826 us |  -6.58% |   FAIL   |
|        I32         |  KEEP_LAST   | 10000000  |   1    | 402.032 us |       0.88% | 339.892 us |       1.23% | -62.141 us | -15.46% |   FAIL   |
|        I32         |  KEEP_NONE   |   10000   |   0    | 107.445 us |       2.99% | 102.237 us |       5.79% |  -5.208 us |  -4.85% |   FAIL   |
|        I32         |  KEEP_NONE   |  100000   |   0    | 110.282 us |      40.52% | 109.445 us |       4.55% |  -0.838 us |  -0.76% |   PASS   |
|        I32         |  KEEP_NONE   |  1000000  |   0    | 144.029 us |       2.64% | 131.374 us |       4.16% | -12.655 us |  -8.79% |   FAIL   |
|        I32         |  KEEP_NONE   | 10000000  |   0    | 592.471 us |       0.79% | 522.184 us |       1.26% | -70.287 us | -11.86% |   FAIL   |
|        I32         |  KEEP_NONE   |   10000   |   1    |  78.607 us |       3.26% |  73.503 us |      36.00% |  -5.104 us |  -6.49% |   FAIL   |
|        I32         |  KEEP_NONE   |  100000   |   1    |  79.780 us |       3.91% |  80.381 us |       5.95% |   0.601 us |   0.75% |   PASS   |
|        I32         |  KEEP_NONE   |  1000000  |   1    | 103.338 us |       3.28% |  96.556 us |       3.79% |  -6.782 us |  -6.56% |   FAIL   |
|        I32         |  KEEP_NONE   | 10000000  |   1    | 377.176 us |       1.08% | 357.660 us |       1.67% | -19.516 us |  -5.17% |   FAIL   |
|        I64         |  KEEP_FIRST  |   10000   |   0    | 101.545 us |       4.00% | 106.498 us |       3.78% |   4.953 us |   4.88% |   FAIL   |
|        I64         |  KEEP_FIRST  |  100000   |   0    | 102.984 us |       3.82% | 118.839 us |       3.88% |  15.855 us |  15.40% |   FAIL   |
|        I64         |  KEEP_FIRST  |  1000000  |   0    | 192.291 us |       1.73% | 197.731 us |      29.57% |   5.439 us |   2.83% |   FAIL   |
|        I64         |  KEEP_FIRST  | 10000000  |   0    |   1.060 ms |       0.36% |   1.045 ms |       0.59% | -14.914 us |  -1.41% |   FAIL   |
|        I64         |  KEEP_FIRST  |   10000   |   1    | 101.982 us |       3.11% | 108.815 us |       5.89% |   6.833 us |   6.70% |   FAIL   |
|        I64         |  KEEP_FIRST  |  100000   |   1    | 102.889 us |       3.86% | 122.858 us |       5.04% |  19.969 us |  19.41% |   FAIL   |
|        I64         |  KEEP_FIRST  |  1000000  |   1    | 135.647 us |       2.44% | 143.858 us |       4.84% |   8.211 us |   6.05% |   FAIL   |
|        I64         |  KEEP_FIRST  | 10000000  |   1    | 441.043 us |       0.89% | 428.565 us |       1.40% | -12.478 us |  -2.83% |   FAIL   |
|        I64         |  KEEP_LAST   |   10000   |   0    | 101.573 us |       3.64% | 106.856 us |       3.78% |   5.283 us |   5.20% |   FAIL   |
|        I64         |  KEEP_LAST   |  100000   |   0    | 103.500 us |       3.88% | 121.885 us |      39.99% |  18.385 us |  17.76% |   FAIL   |
|        I64         |  KEEP_LAST   |  1000000  |   0    | 194.356 us |       1.75% | 200.615 us |       2.76% |   6.260 us |   3.22% |   FAIL   |
|        I64         |  KEEP_LAST   | 10000000  |   0    |   1.060 ms |       0.49% |   1.046 ms |       0.56% | -14.267 us |  -1.35% |   FAIL   |
|        I64         |  KEEP_LAST   |   10000   |   1    | 102.474 us |       3.59% | 109.357 us |       5.80% |   6.883 us |   6.72% |   FAIL   |
|        I64         |  KEEP_LAST   |  100000   |   1    | 103.123 us |       2.89% | 121.248 us |       4.72% |  18.125 us |  17.58% |   FAIL   |
|        I64         |  KEEP_LAST   |  1000000  |   1    | 136.935 us |       3.44% | 142.839 us |       3.63% |   5.905 us |   4.31% |   FAIL   |
|        I64         |  KEEP_LAST   | 10000000  |   1    | 445.649 us |       9.11% | 433.736 us |       1.29% | -11.913 us |  -2.67% |   FAIL   |
|        I64         |  KEEP_NONE   |   10000   |   0    | 105.739 us |       3.47% | 110.692 us |      30.27% |   4.953 us |   4.68% |   FAIL   |
|        I64         |  KEEP_NONE   |  100000   |   0    | 105.835 us |       3.63% | 119.934 us |       3.20% |  14.099 us |  13.32% |   FAIL   |
|        I64         |  KEEP_NONE   |  1000000  |   0    | 149.762 us |       2.44% | 149.136 us |       2.69% |  -0.627 us |  -0.42% |   PASS   |
|        I64         |  KEEP_NONE   | 10000000  |   0    | 651.864 us |       0.70% | 654.450 us |       0.97% |   2.586 us |   0.40% |   PASS   |
|        I64         |  KEEP_NONE   |   10000   |   1    |  75.998 us |       4.55% |  81.098 us |       3.88% |   5.101 us |   6.71% |   FAIL   |
|        I64         |  KEEP_NONE   |  100000   |   1    |  77.089 us |       3.85% |  95.909 us |       5.56% |  18.820 us |  24.41% |   FAIL   |
|        I64         |  KEEP_NONE   |  1000000  |   1    | 111.233 us |       4.90% | 113.041 us |       3.47% |   1.807 us |   1.62% |   PASS   |
|        I64         |  KEEP_NONE   | 10000000  |   1    | 396.857 us |       0.65% | 481.945 us |       1.51% |  85.088 us |  21.44% |   FAIL   |
|        F32         |  KEEP_FIRST  |   10000   |   0    | 101.562 us |       3.46% | 105.202 us |       4.76% |   3.640 us |   3.58% |   FAIL   |
|        F32         |  KEEP_FIRST  |  100000   |   0    | 111.840 us |       3.35% | 114.932 us |       3.08% |   3.091 us |   2.76% |   PASS   |
|        F32         |  KEEP_FIRST  |  1000000  |   0    | 141.494 us |       3.96% | 141.776 us |       3.04% |   0.282 us |   0.20% |   PASS   |
|        F32         |  KEEP_FIRST  | 10000000  |   0    | 780.542 us |       0.71% | 744.821 us |       0.63% | -35.722 us |  -4.58% |   FAIL   |
|        F32         |  KEEP_FIRST  |   10000   |   1    | 104.244 us |       3.95% | 107.103 us |       3.81% |   2.859 us |   2.74% |   PASS   |
|        F32         |  KEEP_FIRST  |  100000   |   1    | 114.463 us |       3.04% | 120.665 us |      45.69% |   6.203 us |   5.42% |   FAIL   |
|        F32         |  KEEP_FIRST  |  1000000  |   1    | 151.554 us |       3.29% | 150.442 us |      16.46% |  -1.112 us |  -0.73% |   PASS   |
|        F32         |  KEEP_FIRST  | 10000000  |   1    | 725.598 us |       0.79% | 691.262 us |      15.46% | -34.337 us |  -4.73% |   FAIL   |
|        F32         |  KEEP_LAST   |   10000   |   0    | 102.512 us |       3.84% | 104.129 us |      26.37% |   1.618 us |   1.58% |   PASS   |
|        F32         |  KEEP_LAST   |  100000   |   0    | 113.546 us |       3.52% | 113.370 us |      16.98% |  -0.176 us |  -0.16% |   PASS   |
|        F32         |  KEEP_LAST   |  1000000  |   0    | 140.714 us |       3.98% | 140.801 us |      23.08% |   0.087 us |   0.06% |   PASS   |
|        F32         |  KEEP_LAST   | 10000000  |   0    | 779.466 us |       4.51% | 743.040 us |       3.90% | -36.426 us |  -4.67% |   FAIL   |
|        F32         |  KEEP_LAST   |   10000   |   1    | 104.599 us |       3.80% | 106.394 us |      10.35% |   1.795 us |   1.72% |   PASS   |
|        F32         |  KEEP_LAST   |  100000   |   1    | 113.715 us |       3.42% | 116.994 us |       5.62% |   3.279 us |   2.88% |   PASS   |
|        F32         |  KEEP_LAST   |  1000000  |   1    | 151.891 us |       3.48% | 150.486 us |      19.78% |  -1.405 us |  -0.93% |   PASS   |
|        F32         |  KEEP_LAST   | 10000000  |   1    | 723.979 us |       0.73% | 686.314 us |       3.53% | -37.666 us |  -5.20% |   FAIL   |
|        F32         |  KEEP_NONE   |   10000   |   0    | 106.532 us |       3.20% | 106.619 us |      20.10% |   0.087 us |   0.08% |   PASS   |
|        F32         |  KEEP_NONE   |  100000   |   0    | 115.957 us |       2.92% | 115.906 us |       3.31% |  -0.051 us |  -0.04% |   PASS   |
|        F32         |  KEEP_NONE   |  1000000  |   0    | 145.043 us |       3.48% | 137.928 us |       3.74% |  -7.115 us |  -4.91% |   FAIL   |
|        F32         |  KEEP_NONE   | 10000000  |   0    | 601.570 us |       1.24% | 571.706 us |       0.99% | -29.863 us |  -4.96% |   FAIL   |
|        F32         |  KEEP_NONE   |   10000   |   1    | 106.972 us |       3.95% | 108.319 us |       3.54% |   1.347 us |   1.26% |   PASS   |
|        F32         |  KEEP_NONE   |  100000   |   1    | 117.138 us |       6.01% | 120.641 us |      22.19% |   3.502 us |   2.99% |   PASS   |
|        F32         |  KEEP_NONE   |  1000000  |   1    | 146.725 us |       2.65% | 139.540 us |       3.10% |  -7.185 us |  -4.90% |   FAIL   |
|        F32         |  KEEP_NONE   | 10000000  |   1    | 544.034 us |       0.91% | 513.078 us |       8.77% | -30.956 us |  -5.69% |   FAIL   |
| cudf::timestamp_ms |  KEEP_FIRST  |   10000   |   0    | 102.038 us |       3.48% | 104.629 us |      20.15% |   2.592 us |   2.54% |   PASS   |
| cudf::timestamp_ms |  KEEP_FIRST  |  100000   |   0    | 121.080 us |       3.30% | 118.954 us |       3.15% |  -2.126 us |  -1.76% |   PASS   |
| cudf::timestamp_ms |  KEEP_FIRST  |  1000000  |   0    | 203.229 us |       3.74% | 192.566 us |       3.60% | -10.663 us |  -5.25% |   FAIL   |
| cudf::timestamp_ms |  KEEP_FIRST  | 10000000  |   0    |   1.095 ms |       0.69% |   1.050 ms |       4.21% | -44.400 us |  -4.06% |   FAIL   |
| cudf::timestamp_ms |  KEEP_FIRST  |   10000   |   1    | 101.906 us |       2.91% | 107.885 us |       7.34% |   5.979 us |   5.87% |   FAIL   |
| cudf::timestamp_ms |  KEEP_FIRST  |  100000   |   1    | 121.348 us |       3.33% | 131.557 us |       8.25% |  10.209 us |   8.41% |   FAIL   |
| cudf::timestamp_ms |  KEEP_FIRST  |  1000000  |   1    | 143.187 us |       5.15% | 147.423 us |       7.88% |   4.235 us |   2.96% |   PASS   |
| cudf::timestamp_ms |  KEEP_FIRST  | 10000000  |   1    | 412.384 us |       2.00% | 374.747 us |       3.36% | -37.637 us |  -9.13% |   FAIL   |
| cudf::timestamp_ms |  KEEP_LAST   |   10000   |   0    | 102.952 us |       3.83% | 116.270 us |      34.02% |  13.318 us |  12.94% |   FAIL   |
| cudf::timestamp_ms |  KEEP_LAST   |  100000   |   0    | 120.817 us |       3.43% | 124.622 us |       8.38% |   3.805 us |   3.15% |   PASS   |
| cudf::timestamp_ms |  KEEP_LAST   |  1000000  |   0    | 202.039 us |       3.66% | 200.458 us |       5.55% |  -1.580 us |  -0.78% |   PASS   |
| cudf::timestamp_ms |  KEEP_LAST   | 10000000  |   0    |   1.091 ms |       0.68% |   1.057 ms |       1.06% | -34.619 us |  -3.17% |   FAIL   |
| cudf::timestamp_ms |  KEEP_LAST   |   10000   |   1    | 101.023 us |       2.69% | 115.096 us |      61.10% |  14.073 us |  13.93% |   FAIL   |
| cudf::timestamp_ms |  KEEP_LAST   |  100000   |   1    | 120.935 us |       6.14% | 130.068 us |      51.79% |   9.133 us |   7.55% |   FAIL   |
| cudf::timestamp_ms |  KEEP_LAST   |  1000000  |   1    | 142.873 us |       5.40% | 146.950 us |       7.79% |   4.077 us |   2.85% |   PASS   |
| cudf::timestamp_ms |  KEEP_LAST   | 10000000  |   1    | 421.391 us |       2.41% | 388.232 us |      17.79% | -33.159 us |  -7.87% |   FAIL   |
| cudf::timestamp_ms |  KEEP_NONE   |   10000   |   0    | 106.234 us |       3.95% | 118.379 us |       8.85% |  12.146 us |  11.43% |   FAIL   |
| cudf::timestamp_ms |  KEEP_NONE   |  100000   |   0    | 122.509 us |       3.31% | 131.186 us |       8.74% |   8.677 us |   7.08% |   FAIL   |
| cudf::timestamp_ms |  KEEP_NONE   |  1000000  |   0    | 155.476 us |       6.01% | 158.464 us |      29.72% |   2.988 us |   1.92% |   PASS   |
| cudf::timestamp_ms |  KEEP_NONE   | 10000000  |   0    | 702.659 us |       1.12% | 668.219 us |      14.25% | -34.440 us |  -4.90% |   FAIL   |
| cudf::timestamp_ms |  KEEP_NONE   |   10000   |   1    |  76.425 us |       3.30% |  85.420 us |      12.03% |   8.995 us |  11.77% |   FAIL   |
| cudf::timestamp_ms |  KEEP_NONE   |  100000   |   1    |  91.645 us |       2.16% | 101.504 us |      10.03% |   9.858 us |  10.76% |   FAIL   |
| cudf::timestamp_ms |  KEEP_NONE   |  1000000  |   1    | 113.316 us |       5.60% | 118.270 us |       9.35% |   4.954 us |   4.37% |   PASS   |
| cudf::timestamp_ms |  KEEP_NONE   | 10000000  |   1    | 383.639 us |       1.98% | 350.156 us |       3.43% | -33.483 us |  -8.73% |   FAIL   |

divyegala · 2023-02-02T22:59:43Z

contains_scalar benchmarks

|  data_size  |  has_nulls  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |      Diff |   %Diff |  Status  |
|-------------|-------------|------------|-------------|------------|-------------|-----------|---------|----------|
|    2^10     |      0      |  37.151 us |      85.19% |  35.437 us |     122.97% | -1.714 us |  -4.61% |   PASS   |
|    2^12     |      0      |  38.474 us |      50.30% |  36.480 us |      50.25% | -1.994 us |  -5.18% |   PASS   |
|    2^14     |      0      |  38.476 us |      24.17% |  37.518 us |      50.78% | -0.958 us |  -2.49% |   PASS   |
|    2^16     |      0      |  38.316 us |      30.10% |  37.501 us |       3.90% | -0.815 us |  -2.13% |   PASS   |
|    2^18     |      0      |  40.930 us |      20.53% |  40.084 us |      83.47% | -0.846 us |  -2.07% |   PASS   |
|    2^20     |      0      |  47.305 us |      25.25% |  45.338 us |      53.45% | -1.967 us |  -4.16% |   PASS   |
|    2^22     |      0      |  66.533 us |       3.15% |  64.927 us |       2.44% | -1.607 us |  -2.42% |   PASS   |
|    2^24     |      0      | 125.766 us |      18.82% | 123.543 us |       1.16% | -2.223 us |  -1.77% |   FAIL   |
|    2^26     |      0      | 356.898 us |       0.75% | 355.682 us |      11.18% | -1.215 us |  -0.34% |   PASS   |
|    2^10     |      1      |  36.100 us |      34.48% |  34.761 us |      35.69% | -1.339 us |  -3.71% |   PASS   |
|    2^12     |      1      |  38.750 us |       5.13% |  36.897 us |       4.02% | -1.853 us |  -4.78% |   FAIL   |
|    2^14     |      1      |  38.943 us |      52.97% |  37.235 us |      17.48% | -1.708 us |  -4.39% |   PASS   |
|    2^16     |      1      |  39.427 us |       5.80% |  38.351 us |      36.89% | -1.076 us |  -2.73% |   PASS   |
|    2^18     |      1      |  40.683 us |       5.62% |  39.301 us |       7.48% | -1.382 us |  -3.40% |   PASS   |
|    2^20     |      1      |  47.921 us |      45.26% |  45.533 us |       4.49% | -2.388 us |  -4.98% |   FAIL   |
|    2^22     |      1      |  69.024 us |       2.93% |  66.356 us |       3.22% | -2.668 us |  -3.87% |   FAIL   |
|    2^24     |      1      | 129.735 us |       1.87% | 126.840 us |       1.55% | -2.895 us |  -2.23% |   FAIL   |
|    2^26     |      1      | 374.296 us |       0.66% | 372.177 us |      13.75% | -2.118 us |  -0.57% |   PASS   |

vyasr · 2023-02-02T23:02:48Z

Some of these look like big wins! distinct and rank_scan have some >20% improvements if I'm reading this correctly?

cpp/include/cudf/table/experimental/row_operators.cuh

cpp/src/binaryop/compiled/struct_binary_ops.cuh

cpp/src/reductions/scan/rank_scan.cu

cpp/src/search/contains_scalar.cu

cpp/src/transform/one_hot_encode.cu

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hyperbolic2346

Do we know the performance impact on compilation for this change?

In general I think this is a nice run time performance and it might justify the compilation penalty, but I'd like to know what the penalty would be here.

Nits on a few places with _ on incoming variables and not on member variables.

cpp/src/groupby/sort/group_rank_scan.cu

…mp-fast-path

divyegala · 2023-02-07T02:07:15Z

@hyperbolic2346 I added the compilation impact to the description of this PR

cpp/src/search/contains_table.cu

cpp/src/sort/rank.cu

cpp/src/stream_compaction/distinct.cu

cpp/src/stream_compaction/unique.cu

cpp/src/transform/one_hot_encode.cu

Co-authored-by: Nghia Truong <nghiatruong.vn@gmail.com>

…mp-fast-path

cpp/include/cudf/table/experimental/row_operators.cuh

…echanism

GregoryKimball · 2023-02-14T23:06:58Z

We did a benchmarking analysis for this PR using commit c6bc7f5f. Looks like an excellent change!

We observe up to 40% speedup for simple types in rank_scan at 100M scale.

Also up to 25% speedup for simple types in distinct at 10M scale.

Up to 10% speedup for simple types in unique at 10M scale.

ttnghia · 2023-02-14T23:15:42Z

Why do we have a V shape? Whyyyyyyy?

GregoryKimball · 2023-02-14T23:23:08Z

Why do we have a V shape? Whyyyyyyy?

It's good! The V is because this commit is faster than the baseline runs before and after.

ttnghia · 2023-02-14T23:28:08Z

Oh I see. So the benchmarks in the graph are independent, aren't they? I thought that the latter commits merged into the former ones.

divyegala · 2023-02-15T00:07:31Z

@ttnghia in a way, the latter commits are merged into the former ones because the baseline is main. This PR is a one-off benchmark that may have former commits merged into it depending on when main was last merged into HEAD

divyegala · 2023-02-16T06:46:14Z

/merge

building equality::self_comparator

4a8085a

divyegala added improvement Improvement / enhancement to an existing function non-breaking Non-breaking change labels Feb 2, 2023

github-actions bot added the libcudf Affects libcudf (C++/CUDA) code. label Feb 2, 2023

divyegala added 2 commits February 2, 2023 09:38

two table comp

f71d161

copyright years

3ca298c

centralizing repeated logic

7c167a7

divyegala marked this pull request as ready for review February 2, 2023 23:09

divyegala requested a review from a team as a code owner February 2, 2023 23:09

divyegala requested review from davidwendt and hyperbolic2346 February 2, 2023 23:09

davidwendt reviewed Feb 3, 2023

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divyegala added 3 commits February 3, 2023 09:10

address review to create functors

0ceb79e

updating has_nested_columns docs

37e7326

Merge remote-tracking branch 'upstream/branch-23.04' into equality-co…

b44f603

…mp-fast-path

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address review for underscore prefixes in structs

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Merge remote-tracking branch 'upstream/branch-23.04' into equality-co…

c2ca8ee

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divyegala requested review from davidwendt and hyperbolic2346 February 7, 2023 22:39