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Use PDL in DeviceHistogram - #6367

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bernhardmgruber merged 7 commits into
NVIDIA:mainfrom
bernhardmgruber:pdl_hist
Nov 3, 2025
Merged

Use PDL in DeviceHistogram#6367
bernhardmgruber merged 7 commits into
NVIDIA:mainfrom
bernhardmgruber:pdl_hist

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@bernhardmgruber bernhardmgruber commented Oct 28, 2025 •
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cub.bench.histogram.even.base

## [0] NVIDIA B200

|  SampleT{ct}  |  CounterT{ct}  |  OffsetT{ct}  |  Elements{io}  |  Bins   |  Entropy  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |      Diff |   %Diff |  Status  |
|---------------|----------------|---------------|----------------|---------|-----------|------------|-------------|------------|-------------|-----------|---------|----------|
|      I8       |      I32       |      I32      |      2^16      |   32    |   0.201   |   8.059 us |       2.35% |   6.703 us |      12.61% | -1.356 us | -16.83% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |   32    |   0.201   |   9.488 us |      10.25% |   8.062 us |       1.54% | -1.426 us | -15.03% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   32    |   0.201   |  16.363 us |       1.54% |  15.232 us |       6.69% | -1.131 us |  -6.91% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   32    |   0.201   | 127.253 us |       0.58% | 125.460 us |       0.75% | -1.793 us |  -1.41% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |   128   |   0.201   |   8.273 us |       5.52% |   8.082 us |       1.42% | -0.191 us |  -2.31% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |   128   |   0.201   |   9.240 us |      11.24% |   8.078 us |       1.50% | -1.162 us | -12.58% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   128   |   0.201   |  16.365 us |       0.32% |  15.115 us |       6.42% | -1.250 us |  -7.64% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   128   |   0.201   | 127.082 us |       0.47% | 125.486 us |       0.75% | -1.596 us |  -1.26% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |  2048   |   0.201   |   8.778 us |      10.60% |   7.199 us |      13.90% | -1.579 us | -17.99% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |  2048   |   0.201   |  10.267 us |       3.16% |  10.121 us |       1.87% | -0.146 us |  -1.42% |   SAME   |
|      I8       |      I32       |      I32      |      2^24      |  2048   |   0.201   |  24.544 us |       0.26% |  22.610 us |       2.61% | -1.935 us |  -7.88% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |  2048   |   0.201   | 129.618 us |       0.83% | 128.377 us |       0.87% | -1.241 us |  -0.96% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      | 2097152 |   0.201   |  13.010 us |       8.48% |  11.988 us |       3.32% | -1.022 us |  -7.85% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      | 2097152 |   0.201   |  14.348 us |       3.47% |  14.151 us |       0.61% | -0.197 us |  -1.37% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      | 2097152 |   0.201   |  28.579 us |       0.61% |  27.171 us |       3.56% | -1.408 us |  -4.93% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      | 2097152 |   0.201   | 133.251 us |       0.41% | 131.925 us |       0.81% | -1.326 us |  -1.00% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |   32    |     1     |   8.275 us |       5.23% |   8.112 us |       3.95% | -0.163 us |  -1.97% |   SAME   |
|      I8       |      I32       |      I32      |      2^20      |   32    |     1     |   9.563 us |      10.02% |   8.164 us |       0.89% | -1.398 us | -14.62% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   32    |     1     |  16.406 us |       1.61% |  15.330 us |       6.69% | -1.076 us |  -6.56% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   32    |     1     | 127.093 us |       0.54% | 125.524 us |       0.78% | -1.569 us |  -1.23% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |   128   |     1     |   8.745 us |      10.51% |   7.227 us |      13.84% | -1.518 us | -17.35% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |   128   |     1     |   9.382 us |      10.78% |   8.072 us |       1.54% | -1.310 us | -13.96% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   128   |     1     |  16.361 us |       0.67% |  15.730 us |       5.49% | -0.632 us |  -3.86% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   128   |     1     | 129.505 us |       0.71% | 128.286 us |       0.71% | -1.219 us |  -0.94% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |  2048   |     1     |   9.159 us |      11.18% |   7.335 us |      13.12% | -1.824 us | -19.92% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |  2048   |     1     |  16.357 us |       0.40% |  14.255 us |       1.91% | -2.102 us | -12.85% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |  2048   |     1     |  37.852 us |       2.69% |  36.301 us |       2.22% | -1.551 us |  -4.10% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |  2048   |     1     | 136.698 us |       0.71% | 135.324 us |       0.67% | -1.375 us |  -1.01% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      | 2097152 |     1     |  12.648 us |       7.04% |  12.094 us |       0.74% | -0.553 us |  -4.37% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      | 2097152 |     1     |  20.397 us |       1.10% |  18.571 us |       3.95% | -1.826 us |  -8.95% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      | 2097152 |     1     |  42.281 us |       2.41% |  40.756 us |       0.18% | -1.526 us |  -3.61% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      | 2097152 |     1     | 139.487 us |       0.49% | 138.245 us |       0.76% | -1.242 us |  -0.89% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.307 us |       3.87% |   9.199 us |      11.08% | -1.108 us | -10.75% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   32    |   0.201   |  11.714 us |       7.68% |  10.221 us |       0.62% | -1.493 us | -12.74% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   32    |   0.201   |  38.905 us |       0.09% |  37.214 us |       2.10% | -1.690 us |  -4.34% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   32    |   0.201   | 455.152 us |       0.22% | 453.846 us |       0.21% | -1.305 us |  -0.29% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |   128   |   0.201   |  11.211 us |       9.17% |   9.288 us |      10.53% | -1.923 us | -17.15% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   128   |   0.201   |  12.253 us |       0.53% |  10.159 us |       1.04% | -2.094 us | -17.09% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   128   |   0.201   |  39.992 us |       2.56% |  38.830 us |       0.44% | -1.163 us |  -2.91% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   128   |   0.201   | 470.572 us |       0.30% | 469.017 us |       0.31% | -1.554 us |  -0.33% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  16.323 us |       0.55% |  14.441 us |       4.12% | -1.882 us | -11.53% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  16.805 us |       5.05% |  16.277 us |       0.72% | -0.528 us |  -3.14% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 119.832 us |       0.86% | 118.119 us |       0.80% | -1.714 us |  -1.43% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   1.623 ms |       0.25% |   1.623 ms |       0.26% | -0.117 us |  -0.01% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      | 2097152 |   0.201   | 568.817 us |       0.15% | 567.179 us |       0.08% | -1.637 us |  -0.29% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   1.166 ms |       0.15% |   1.164 ms |       0.13% | -1.393 us |  -0.12% |   SAME   |
|      I16      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   1.549 ms |       0.53% |   1.548 ms |       0.54% | -1.095 us |  -0.07% |   SAME   |
|      I16      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |   2.076 ms |       0.20% |   2.074 ms |       0.20% | -1.632 us |  -0.08% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      |   32    |     1     |  10.743 us |       8.24% |   9.236 us |      11.01% | -1.507 us | -14.03% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   32    |     1     |  12.278 us |       0.29% |  10.203 us |       0.78% | -2.075 us | -16.90% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   32    |     1     |  38.899 us |       0.11% |  37.453 us |       2.46% | -1.446 us |  -3.72% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   32    |     1     | 469.100 us |       0.20% | 467.829 us |       0.23% | -1.270 us |  -0.27% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |   128   |     1     |  10.207 us |       1.27% |   9.495 us |       9.53% | -0.712 us |  -6.97% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   128   |     1     |  11.424 us |       8.77% |  10.144 us |       1.13% | -1.281 us | -11.21% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   128   |     1     |  38.844 us |       0.70% |  36.764 us |       0.32% | -2.080 us |  -5.36% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   128   |     1     | 451.823 us |       0.24% | 450.555 us |       0.18% | -1.267 us |  -0.28% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |  2048   |     1     |  16.329 us |       0.55% |  15.251 us |       6.50% | -1.077 us |  -6.60% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |  2048   |     1     |  18.388 us |       0.42% |  16.256 us |       0.74% | -2.133 us | -11.60% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |  2048   |     1     |  98.120 us |       0.71% |  96.339 us |       0.83% | -1.781 us |  -1.82% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |  2048   |     1     |   1.471 ms |       0.29% |   1.471 ms |       0.30% | -0.907 us |  -0.06% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      | 2097152 |     1     | 574.952 us |       0.20% | 573.754 us |       0.18% | -1.198 us |  -0.21% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      | 2097152 |     1     |   1.166 ms |       0.13% |   1.165 ms |       0.13% | -1.189 us |  -0.10% |   SAME   |
|      I16      |      I32       |      I32      |      2^24      | 2097152 |     1     |   1.548 ms |       0.53% |   1.547 ms |       0.54% | -1.193 us |  -0.08% |   SAME   |
|      I16      |      I32       |      I32      |      2^28      | 2097152 |     1     |   2.076 ms |       0.20% |   2.075 ms |       0.18% | -1.174 us |  -0.06% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      |   32    |   0.201   |  12.272 us |       0.48% |  10.585 us |       7.12% | -1.687 us | -13.75% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   32    |   0.201   |  14.319 us |       0.37% |  12.255 us |       0.67% | -2.064 us | -14.42% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |   32    |   0.201   |  45.862 us |       2.18% |  44.055 us |       2.30% | -1.806 us |  -3.94% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |   32    |   0.201   | 560.035 us |       0.18% | 559.148 us |       0.12% | -0.887 us |  -0.16% |   FAST   |
|      I32      |      I32       |      I32      |      2^16      |   128   |   0.201   |  12.246 us |       0.61% |  10.499 us |       7.04% | -1.747 us | -14.26% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   128   |   0.201   |  14.311 us |       0.41% |  12.174 us |       1.31% | -2.137 us | -14.93% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |   128   |   0.201   |  46.526 us |       1.93% |  44.954 us |       0.26% | -1.572 us |  -3.38% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |   128   |   0.201   | 562.666 us |       0.18% | 561.653 us |       0.18% | -1.013 us |  -0.18% |   FAST   |
|      I32      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  14.278 us |       0.64% |  13.236 us |       7.50% | -1.042 us |  -7.30% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  18.411 us |       0.99% |  18.099 us |       3.34% | -0.312 us |  -1.69% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 103.205 us |       1.32% | 101.681 us |       1.54% | -1.524 us |  -1.48% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   1.482 ms |       0.37% |   1.480 ms |       0.37% | -1.399 us |  -0.09% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   2.148 ms |       0.11% |   2.148 ms |       0.12% |  0.518 us |   0.02% |   SAME   |
|      I32      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   2.827 ms |       0.10% |   2.826 ms |       0.10% | -0.506 us |  -0.02% |   SAME   |
|      I32      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   3.434 ms |       0.37% |   3.433 ms |       0.39% | -0.872 us |  -0.03% |   SAME   |
|      I32      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |   5.804 ms |       0.22% |   5.802 ms |       0.22% | -1.540 us |  -0.03% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      |   32    |     1     |  12.276 us |       0.38% |  11.236 us |       9.18% | -1.040 us |  -8.48% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   32    |     1     |  14.325 us |       0.32% |  12.260 us |       0.60% | -2.064 us | -14.41% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |   32    |     1     |  47.096 us |       0.07% |  45.051 us |       0.37% | -2.045 us |  -4.34% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |   32    |     1     | 580.163 us |       0.19% | 579.262 us |       0.16% | -0.901 us |  -0.16% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      |   128   |     1     |  12.260 us |       0.49% |  10.540 us |       7.26% | -1.719 us | -14.02% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   128   |     1     |  14.323 us |       0.27% |  12.187 us |       0.98% | -2.136 us | -14.92% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |   128   |     1     |  45.146 us |       1.05% |  44.835 us |       1.08% | -0.310 us |  -0.69% |   SAME   |
|      I32      |      I32       |      I32      |      2^28      |   128   |     1     | 557.571 us |       0.17% | 556.871 us |       0.12% | -0.700 us |  -0.13% |   FAST   |
|      I32      |      I32       |      I32      |      2^16      |  2048   |     1     |  15.453 us |       6.58% |  14.128 us |       3.21% | -1.325 us |  -8.57% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |  2048   |     1     |  20.530 us |       1.92% |  20.106 us |       3.38% | -0.424 us |  -2.07% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |  2048   |     1     | 110.253 us |       0.66% | 108.291 us |       0.59% | -1.961 us |  -1.78% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |  2048   |     1     |   1.596 ms |       0.08% |   1.595 ms |       0.08% | -1.141 us |  -0.07% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      | 2097152 |     1     |   2.120 ms |       0.10% |   2.118 ms |       0.09% | -1.929 us |  -0.09% |   SAME   |
|      I32      |      I32       |      I32      |      2^20      | 2097152 |     1     |   2.859 ms |       0.09% |   2.857 ms |       0.09% | -1.574 us |  -0.06% |   SAME   |
|      I32      |      I32       |      I32      |      2^24      | 2097152 |     1     |   4.004 ms |       0.13% |   4.004 ms |       0.14% | -0.066 us |  -0.00% |   SAME   |
|      I32      |      I32       |      I32      |      2^28      | 2097152 |     1     |  15.248 ms |       0.51% |  15.239 ms |       0.48% | -9.151 us |  -0.06% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.229 us |       0.45% |   8.771 us |      10.42% | -1.458 us | -14.26% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   32    |   0.201   |  12.338 us |       2.99% |  12.252 us |       1.04% | -0.086 us |  -0.69% |   SAME   |
|      I64      |      I32       |      I32      |      2^24      |   32    |   0.201   |  52.159 us |       1.96% |  50.407 us |       1.95% | -1.752 us |  -3.36% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   32    |   0.201   | 650.619 us |       0.19% | 649.500 us |       0.20% | -1.119 us |  -0.17% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      |   128   |   0.201   |  10.201 us |       0.74% |   8.900 us |      10.93% | -1.300 us | -12.75% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   128   |   0.201   |  12.483 us |       5.06% |  12.124 us |       3.01% | -0.359 us |  -2.88% |   SAME   |
|      I64      |      I32       |      I32      |      2^24      |   128   |   0.201   |  53.211 us |       0.14% |  51.165 us |       0.61% | -2.046 us |  -3.84% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   128   |   0.201   | 656.769 us |       0.25% | 655.351 us |       0.24% | -1.417 us |  -0.22% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  12.233 us |       0.72% |  11.072 us |       9.27% | -1.161 us |  -9.49% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  16.723 us |       4.74% |  16.223 us |       1.65% | -0.501 us |  -2.99% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 110.410 us |       1.70% | 108.778 us |       1.79% | -1.632 us |  -1.48% |   SAME   |
|      I64      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   1.620 ms |       0.41% |   1.613 ms |       0.40% | -6.703 us |  -0.41% |   FAST   |
|      I64      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   2.648 ms |       0.15% |   2.648 ms |       0.16% |  0.426 us |   0.02% |   SAME   |
|      I64      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   3.113 ms |       0.15% |   3.112 ms |       0.15% | -0.334 us |  -0.01% |   SAME   |
|      I64      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   3.453 ms |       0.54% |   3.454 ms |       0.54% |  0.306 us |   0.01% |   SAME   |
|      I64      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |   6.221 ms |       0.30% |   6.220 ms |       0.30% | -0.557 us |  -0.01% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      |   32    |     1     |  10.223 us |       0.51% |   9.174 us |      11.19% | -1.049 us | -10.26% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   32    |     1     |  12.545 us |       5.49% |  12.255 us |       0.68% | -0.290 us |  -2.31% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |   32    |     1     |  53.246 us |       0.21% |  51.904 us |       1.88% | -1.342 us |  -2.52% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   32    |     1     | 666.942 us |       0.17% | 665.616 us |       0.16% | -1.326 us |  -0.20% |   FAST   |
|      I64      |      I32       |      I32      |      2^16      |   128   |     1     |  10.209 us |       0.71% |   8.932 us |      11.04% | -1.277 us | -12.51% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   128   |     1     |  12.349 us |       3.25% |  12.164 us |       1.84% | -0.185 us |  -1.50% |   SAME   |
|      I64      |      I32       |      I32      |      2^24      |   128   |     1     |  51.771 us |       1.80% |  50.811 us |       1.33% | -0.960 us |  -1.85% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   128   |     1     | 646.567 us |       0.18% | 645.339 us |       0.17% | -1.228 us |  -0.19% |   FAST   |
|      I64      |      I32       |      I32      |      2^16      |  2048   |     1     |  12.266 us |       1.77% |  11.754 us |       6.56% | -0.513 us |  -4.18% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |  2048   |     1     |  20.452 us |       0.30% |  18.318 us |       0.64% | -2.134 us | -10.44% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |  2048   |     1     | 108.532 us |       0.16% | 107.222 us |       0.96% | -1.310 us |  -1.21% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |  2048   |     1     |   1.638 ms |       0.41% |   1.640 ms |       0.40% |  2.409 us |   0.15% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      | 2097152 |     1     |   2.634 ms |       0.12% |   2.634 ms |       0.12% |  0.282 us |   0.01% |   SAME   |
|      I64      |      I32       |      I32      |      2^20      | 2097152 |     1     |   3.143 ms |       0.10% |   3.142 ms |       0.10% | -0.941 us |  -0.03% |   SAME   |
|      I64      |      I32       |      I32      |      2^24      | 2097152 |     1     |   4.021 ms |       0.14% |   4.020 ms |       0.14% | -1.343 us |  -0.03% |   SAME   |
|      I64      |      I32       |      I32      |      2^28      | 2097152 |     1     |  15.469 ms |       0.47% |  15.469 ms |       0.49% | -0.313 us |  -0.00% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.240 us |       0.00% |   8.404 us |       7.50% | -1.836 us | -17.93% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   32    |   0.201   |  12.276 us |       0.39% |  10.229 us |       2.02% | -2.047 us | -16.68% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   32    |   0.201   |  36.905 us |       0.84% |  35.878 us |       2.82% | -1.028 us |  -2.79% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   32    |   0.201   | 449.892 us |       0.21% | 448.507 us |       0.16% | -1.385 us |  -0.31% |   FAST   |
|      F32      |      I32       |      I32      |      2^16      |   128   |   0.201   |  10.198 us |       0.84% |   8.619 us |       9.83% | -1.580 us | -15.49% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   128   |   0.201   |  12.249 us |       0.57% |  10.304 us |       5.09% | -1.946 us | -15.88% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   128   |   0.201   |  36.850 us |       0.31% |  35.372 us |       2.54% | -1.478 us |  -4.01% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   128   |   0.201   | 465.002 us |       0.14% | 463.649 us |       0.22% | -1.353 us |  -0.29% |   FAST   |
|      F32      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  12.238 us |       0.68% |  10.991 us |       9.02% | -1.248 us | -10.20% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  16.362 us |       0.64% |  15.035 us |       6.49% | -1.327 us |  -8.11% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 120.411 us |       0.67% | 118.753 us |       0.51% | -1.658 us |  -1.38% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   1.573 ms |       0.56% |   1.571 ms |       0.50% | -1.727 us |  -0.11% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   2.147 ms |       0.10% |   2.146 ms |       0.10% | -0.226 us |  -0.01% |   SAME   |
|      F32      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   2.823 ms |       0.10% |   2.822 ms |       0.09% | -0.415 us |  -0.01% |   SAME   |
|      F32      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   3.411 ms |       0.30% |   3.409 ms |       0.29% | -2.344 us |  -0.07% |   SAME   |
|      F32      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |   5.368 ms |       0.61% |   5.366 ms |       0.63% | -1.652 us |  -0.03% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      |   32    |     1     |  10.224 us |       0.57% |   8.201 us |       2.58% | -2.023 us | -19.79% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   32    |     1     |  12.148 us |       4.02% |  10.211 us |       0.75% | -1.937 us | -15.94% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   32    |     1     |  26.713 us |       1.67% |  25.561 us |       4.01% | -1.152 us |  -4.31% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   32    |     1     | 261.605 us |       0.36% | 260.046 us |       0.23% | -1.559 us |  -0.60% |   FAST   |
|      F32      |      I32       |      I32      |      2^16      |   128   |     1     |  10.204 us |       0.68% |   8.284 us |       6.74% | -1.920 us | -18.81% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   128   |     1     |  12.247 us |       1.00% |  10.142 us |       1.20% | -2.105 us | -17.19% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   128   |     1     |  26.594 us |       0.25% |  24.867 us |       3.15% | -1.728 us |  -6.50% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   128   |     1     | 264.324 us |       0.26% | 263.111 us |       0.38% | -1.212 us |  -0.46% |   FAST   |
|      F32      |      I32       |      I32      |      2^16      |  2048   |     1     |  14.284 us |       0.59% |  12.184 us |       0.95% | -2.100 us | -14.70% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |  2048   |     1     |  18.394 us |       0.37% |  16.398 us |       3.13% | -1.996 us | -10.85% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |  2048   |     1     | 100.323 us |       0.18% |  98.829 us |       0.96% | -1.494 us |  -1.49% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |  2048   |     1     |   1.597 ms |       0.08% |   1.595 ms |       0.09% | -1.545 us |  -0.10% |   FAST   |
|      F32      |      I32       |      I32      |      2^16      | 2097152 |     1     |   2.120 ms |       0.12% |   2.120 ms |       0.11% | -0.616 us |  -0.03% |   SAME   |
|      F32      |      I32       |      I32      |      2^20      | 2097152 |     1     |   2.856 ms |       0.10% |   2.855 ms |       0.11% | -0.779 us |  -0.03% |   SAME   |
|      F32      |      I32       |      I32      |      2^24      | 2097152 |     1     |   3.980 ms |       0.13% |   3.980 ms |       0.13% | -0.756 us |  -0.02% |   SAME   |
|      F32      |      I32       |      I32      |      2^28      | 2097152 |     1     |  15.032 ms |       0.33% |  15.028 ms |       0.34% | -3.332 us |  -0.02% |   SAME   |
|      F64      |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.160 us |       3.54% |   8.177 us |       0.62% | -1.983 us | -19.52% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   32    |   0.201   |  12.268 us |       0.34% |  10.228 us |       2.19% | -2.040 us | -16.63% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   32    |   0.201   |  45.080 us |       0.48% |  44.131 us |       2.24% | -0.949 us |  -2.10% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |   32    |   0.201   | 577.450 us |       0.03% | 575.736 us |       0.13% | -1.714 us |  -0.30% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      |   128   |   0.201   |  10.121 us |       4.23% |   8.107 us |       1.39% | -2.014 us | -19.90% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   128   |   0.201   |  12.265 us |       0.51% |  10.169 us |       1.69% | -2.096 us | -17.09% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   128   |   0.201   |  45.036 us |       0.12% |  43.173 us |       1.47% | -1.863 us |  -4.14% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |   128   |   0.201   | 593.132 us |       0.16% | 591.769 us |       0.03% | -1.363 us |  -0.23% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  12.241 us |       0.68% |  10.150 us |       1.11% | -2.091 us | -17.08% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  16.369 us |       0.79% |  14.866 us |       6.14% | -1.503 us |  -9.18% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 128.184 us |       0.84% | 126.719 us |       0.82% | -1.465 us |  -1.14% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   1.801 ms |       0.49% |   1.796 ms |       0.53% | -5.299 us |  -0.29% |   SAME   |
|      F64      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   2.652 ms |       0.19% |   2.649 ms |       0.19% | -2.962 us |  -0.11% |   SAME   |
|      F64      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   3.107 ms |       0.14% |   3.106 ms |       0.15% | -1.221 us |  -0.04% |   SAME   |
|      F64      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   3.736 ms |       0.33% |   3.733 ms |       0.34% | -2.638 us |  -0.07% |   SAME   |
|      F64      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |   5.940 ms |       0.51% |   5.939 ms |       0.50% | -0.895 us |  -0.02% |   SAME   |
|      F64      |      I32       |      I32      |      2^16      |   32    |     1     |   9.430 us |      10.60% |   8.170 us |       0.83% | -1.259 us | -13.35% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   32    |     1     |  11.322 us |       9.04% |  10.206 us |       0.78% | -1.116 us |  -9.86% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   32    |     1     |  34.991 us |       1.60% |  33.559 us |       2.97% | -1.432 us |  -4.09% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |   32    |     1     | 379.325 us |       0.27% | 377.892 us |       0.30% | -1.433 us |  -0.38% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      |   128   |     1     |   9.339 us |      10.78% |   8.109 us |       1.35% | -1.231 us | -13.18% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   128   |     1     |  11.333 us |       9.01% |  10.153 us |       1.13% | -1.180 us | -10.42% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   128   |     1     |  34.918 us |       1.39% |  33.547 us |       2.95% | -1.371 us |  -3.93% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |   128   |     1     | 385.805 us |       0.28% | 384.864 us |       0.23% | -0.940 us |  -0.24% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      |  2048   |     1     |  12.251 us |       0.65% |  10.177 us |       1.37% | -2.075 us | -16.93% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |  2048   |     1     |  18.407 us |       0.32% |  16.828 us |       5.21% | -1.580 us |  -8.58% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |  2048   |     1     | 104.400 us |       0.20% | 102.411 us |       0.56% | -1.989 us |  -1.91% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |  2048   |     1     |   1.505 ms |       0.09% |   1.503 ms |       0.09% | -1.550 us |  -0.10% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      | 2097152 |     1     |   2.638 ms |       0.13% |   2.637 ms |       0.13% | -1.434 us |  -0.05% |   SAME   |
|      F64      |      I32       |      I32      |      2^20      | 2097152 |     1     |   3.141 ms |       0.10% |   3.140 ms |       0.11% | -1.140 us |  -0.04% |   SAME   |
|      F64      |      I32       |      I32      |      2^24      | 2097152 |     1     |   4.326 ms |       0.19% |   4.325 ms |       0.19% | -1.270 us |  -0.03% |   SAME   |
|      F64      |      I32       |      I32      |      2^28      | 2097152 |     1     |  15.579 ms |       0.45% |  15.580 ms |       0.46% |  1.565 us |   0.01% |   SAME   |

cub.bench.histogram.multi.even.base

## [0] NVIDIA B200

|  SampleT{ct}  |  CounterT{ct}  |  OffsetT{ct}  |  Elements{io}  |  Bins   |  Entropy  |   Ref Time |   Ref Noise |   Cmp Time |   Cmp Noise |        Diff |   %Diff |  Status  |
|---------------|----------------|---------------|----------------|---------|-----------|------------|-------------|------------|-------------|-------------|---------|----------|
|      I8       |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.106 us |       1.86% |   8.035 us |       2.38% |   -2.071 us | -20.49% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |   32    |   0.201   |  13.890 us |       5.79% |  12.200 us |       2.76% |   -1.690 us | -12.16% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   32    |   0.201   |  63.464 us |       0.41% |  61.921 us |       1.40% |   -1.543 us |  -2.43% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   32    |   0.201   | 857.931 us |       0.13% | 856.351 us |       0.13% |   -1.581 us |  -0.18% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |   128   |   0.201   |  10.195 us |       0.78% |   8.164 us |       1.47% |   -2.030 us | -19.91% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |   128   |   0.201   |  14.289 us |       0.61% |  12.266 us |       0.44% |   -2.023 us | -14.16% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   128   |   0.201   |  74.598 us |       1.36% |  73.695 us |       0.15% |   -0.903 us |  -1.21% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   128   |   0.201   |   1.038 ms |       0.08% |   1.037 ms |       0.08% |   -1.579 us |  -0.15% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |  2048   |   0.201   |  10.201 us |       1.18% |   8.248 us |       4.69% |   -1.953 us | -19.15% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |  2048   |   0.201   |  18.410 us |       1.23% |  18.397 us |       0.34% |   -0.013 us |  -0.07% |   SAME   |
|      I8       |      I32       |      I32      |      2^24      |  2048   |   0.201   |  85.857 us |       0.55% |  83.931 us |       0.08% |   -1.926 us |  -2.24% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |  2048   |   0.201   |   1.038 ms |       0.08% |   1.037 ms |       0.09% |   -1.531 us |  -0.15% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      | 2097152 |   0.201   |  14.535 us |       5.07% |  13.207 us |       7.77% |   -1.328 us |  -9.14% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      | 2097152 |   0.201   |  22.561 us |       2.51% |  22.416 us |       0.39% |   -0.145 us |  -0.64% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      | 2097152 |   0.201   |  90.238 us |       0.76% |  88.983 us |       1.14% |   -1.255 us |  -1.39% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      | 2097152 |   0.201   |   1.043 ms |       0.08% |   1.042 ms |       0.11% |   -1.088 us |  -0.10% |   FAST   |
|      I8       |      I32       |      I32      |      2^16      |   32    |     1     |  10.225 us |       0.47% |   8.176 us |       0.53% |   -2.049 us | -20.04% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |   32    |     1     |  12.275 us |       0.42% |  10.294 us |       3.50% |   -1.981 us | -16.14% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   32    |     1     |  45.048 us |       0.28% |  43.320 us |       1.72% |   -1.728 us |  -3.84% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   32    |     1     | 537.266 us |       0.71% | 535.556 us |       0.65% |   -1.710 us |  -0.32% |   SAME   |
|      I8       |      I32       |      I32      |      2^16      |   128   |     1     |  10.201 us |       0.77% |   8.173 us |       1.37% |   -2.028 us | -19.88% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |   128   |     1     |  12.242 us |       0.68% |  10.340 us |       4.63% |   -1.902 us | -15.54% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |   128   |     1     |  44.039 us |       2.32% |  42.942 us |       0.65% |   -1.097 us |  -2.49% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |   128   |     1     | 521.995 us |       0.67% | 520.335 us |       0.59% |   -1.660 us |  -0.32% |   SAME   |
|      I8       |      I32       |      I32      |      2^16      |  2048   |     1     |  12.246 us |       0.64% |  10.290 us |       3.81% |   -1.956 us | -15.97% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      |  2048   |     1     |  49.663 us |       1.87% |  48.821 us |       1.45% |   -0.841 us |  -1.69% |   FAST   |
|      I8       |      I32       |      I32      |      2^24      |  2048   |     1     |  75.610 us |       0.82% |  74.065 us |       1.14% |   -1.545 us |  -2.04% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      |  2048   |     1     | 524.222 us |       0.51% | 522.826 us |       0.74% |   -1.396 us |  -0.27% |   SAME   |
|      I8       |      I32       |      I32      |      2^16      | 2097152 |     1     |  16.387 us |       3.13% |  15.198 us |       6.66% |   -1.189 us |  -7.25% |   FAST   |
|      I8       |      I32       |      I32      |      2^20      | 2097152 |     1     |  55.796 us |       1.92% |  55.279 us |       1.22% |   -0.517 us |  -0.93% |   SAME   |
|      I8       |      I32       |      I32      |      2^24      | 2097152 |     1     |  80.554 us |       1.50% |  79.652 us |       0.73% |   -0.902 us |  -1.12% |   FAST   |
|      I8       |      I32       |      I32      |      2^28      | 2097152 |     1     | 528.483 us |       0.77% | 527.316 us |       0.68% |   -1.167 us |  -0.22% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      |   32    |   0.201   |  12.269 us |       0.47% |  10.229 us |       0.43% |   -2.040 us | -16.63% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   32    |   0.201   |  16.376 us |       0.22% |  14.666 us |       5.08% |   -1.709 us | -10.44% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   32    |   0.201   | 102.392 us |       0.03% | 100.463 us |       0.58% |   -1.929 us |  -1.88% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   32    |   0.201   |   1.446 ms |       0.10% |   1.445 ms |       0.10% |   -1.332 us |  -0.09% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      |   128   |   0.201   |  12.259 us |       0.55% |  10.220 us |       0.47% |   -2.039 us | -16.64% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   128   |   0.201   |  16.340 us |       0.88% |  15.472 us |       6.49% |   -0.868 us |  -5.31% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   128   |   0.201   | 102.440 us |       0.39% | 100.978 us |       0.93% |   -1.462 us |  -1.43% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   128   |   0.201   |   1.453 ms |       0.11% |   1.451 ms |       0.10% |   -1.508 us |  -0.10% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  16.346 us |       0.47% |  15.329 us |       6.68% |   -1.017 us |  -6.22% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  30.590 us |       2.34% |  29.232 us |       3.17% |   -1.358 us |  -4.44% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 316.078 us |       1.86% | 314.625 us |       1.85% |   -1.452 us |  -0.46% |   SAME   |
|      I16      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   4.128 ms |       1.00% |   4.129 ms |       1.01% |    0.710 us |   0.02% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   7.931 ms |       0.11% |   7.931 ms |       0.12% |   -0.238 us |  -0.00% |   SAME   |
|      I16      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   9.805 ms |       0.13% |   9.804 ms |       0.14% |   -1.430 us |  -0.01% |   SAME   |
|      I16      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   9.881 ms |       0.19% |   9.882 ms |       0.19% |    0.981 us |   0.01% |   SAME   |
|      I16      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |  11.713 ms |       0.26% |  11.705 ms |       0.29% |   -7.859 us |  -0.07% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      |   32    |     1     |  12.268 us |       0.52% |  10.240 us |       0.00% |   -2.028 us | -16.53% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   32    |     1     |  16.748 us |       4.73% |  16.314 us |       2.12% |   -0.434 us |  -2.59% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   32    |     1     | 104.679 us |       0.64% | 103.860 us |       0.88% |   -0.819 us |  -0.78% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   32    |     1     |   1.498 ms |       0.09% |   1.496 ms |       0.10% |   -1.824 us |  -0.12% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |   128   |     1     |  12.261 us |       0.50% |  10.224 us |       0.42% |   -2.037 us | -16.61% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |   128   |     1     |  16.356 us |       0.41% |  14.685 us |       5.22% |   -1.672 us | -10.22% |   FAST   |
|      I16      |      I32       |      I32      |      2^24      |   128   |     1     | 101.608 us |       0.97% | 100.274 us |       0.36% |   -1.334 us |  -1.31% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |   128   |     1     |   1.439 ms |       0.10% |   1.437 ms |       0.09% |   -1.349 us |  -0.09% |   FAST   |
|      I16      |      I32       |      I32      |      2^16      |  2048   |     1     |  18.389 us |       0.43% |  16.363 us |       0.33% |   -2.026 us | -11.02% |   FAST   |
|      I16      |      I32       |      I32      |      2^20      |  2048   |     1     |  34.777 us |       0.25% |  34.763 us |       0.73% |   -0.015 us |  -0.04% |   SAME   |
|      I16      |      I32       |      I32      |      2^24      |  2048   |     1     | 275.595 us |       0.49% | 274.012 us |       0.52% |   -1.584 us |  -0.57% |   FAST   |
|      I16      |      I32       |      I32      |      2^28      |  2048   |     1     |   4.072 ms |       0.07% |   4.070 ms |       0.08% |   -2.513 us |  -0.06% |   SAME   |
|      I16      |      I32       |      I32      |      2^16      | 2097152 |     1     |   7.931 ms |       0.11% |   7.926 ms |       0.11% |   -5.462 us |  -0.07% |   SAME   |
|      I16      |      I32       |      I32      |      2^20      | 2097152 |     1     |   9.806 ms |       0.13% |   9.804 ms |       0.13% |   -1.934 us |  -0.02% |   SAME   |
|      I16      |      I32       |      I32      |      2^24      | 2097152 |     1     |   9.884 ms |       0.19% |   9.883 ms |       0.18% |   -0.977 us |  -0.01% |   SAME   |
|      I16      |      I32       |      I32      |      2^28      | 2097152 |     1     |  11.711 ms |       0.27% |  11.712 ms |       0.30% |    0.943 us |   0.01% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      |   32    |   0.201   |  12.278 us |       0.37% |  10.967 us |       8.87% |   -1.311 us | -10.68% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   32    |   0.201   |  18.448 us |       1.42% |  18.391 us |       1.39% |   -0.057 us |  -0.31% |   SAME   |
|      I32      |      I32       |      I32      |      2^24      |   32    |   0.201   | 136.648 us |       0.67% | 134.823 us |       0.62% |   -1.825 us |  -1.34% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |   32    |   0.201   |   1.967 ms |       0.07% |   1.965 ms |       0.07% |   -1.997 us |  -0.10% |   FAST   |
|      I32      |      I32       |      I32      |      2^16      |   128   |   0.201   |  12.263 us |       0.49% |  10.395 us |       5.31% |   -1.868 us | -15.23% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   128   |   0.201   |  18.469 us |       2.14% |  18.404 us |       0.37% |   -0.065 us |  -0.35% |   SAME   |
|      I32      |      I32       |      I32      |      2^24      |   128   |   0.201   | 137.028 us |       0.40% | 135.185 us |       0.31% |   -1.842 us |  -1.34% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |   128   |   0.201   |   1.970 ms |       0.07% |   1.968 ms |       0.08% |   -1.988 us |  -0.10% |   FAST   |
|      I32      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  16.356 us |       0.40% |  15.615 us |       6.22% |   -0.741 us |  -4.53% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  33.913 us |       3.09% |  32.642 us |       1.58% |   -1.271 us |  -3.75% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 277.982 us |       0.86% | 276.796 us |       0.88% |   -1.186 us |  -0.43% |   SAME   |
|      I32      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   4.161 ms |       0.22% |   4.161 ms |       0.22% |    0.579 us |   0.01% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   7.931 ms |       0.10% |   7.938 ms |       0.11% |    6.807 us |   0.09% |   SAME   |
|      I32      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   8.918 ms |       0.14% |   8.917 ms |       0.14% |   -0.751 us |  -0.01% |   SAME   |
|      I32      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   9.419 ms |       0.14% |   9.416 ms |       0.21% |   -3.196 us |  -0.03% |   SAME   |
|      I32      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |  15.338 ms |       0.20% |  15.313 ms |       0.78% |  -25.164 us |  -0.16% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      |   32    |     1     |  12.274 us |       0.39% |  11.278 us |       9.10% |   -0.995 us |  -8.11% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   32    |     1     |  20.209 us |       3.32% |  18.432 us |       0.00% |   -1.777 us |  -8.79% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |   32    |     1     | 143.173 us |       0.43% | 141.121 us |       0.51% |   -2.052 us |  -1.43% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |   32    |     1     |   2.072 ms |       0.07% |   2.070 ms |       0.07% |   -1.967 us |  -0.09% |   FAST   |
|      I32      |      I32       |      I32      |      2^16      |   128   |     1     |  12.247 us |       0.64% |  11.101 us |       9.09% |   -1.146 us |  -9.35% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |   128   |     1     |  18.619 us |       3.47% |  18.130 us |       3.80% |   -0.490 us |  -2.63% |   SAME   |
|      I32      |      I32       |      I32      |      2^24      |   128   |     1     | 135.428 us |       0.55% | 134.250 us |       0.75% |   -1.178 us |  -0.87% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |   128   |     1     |   1.958 ms |       0.07% |   1.955 ms |       0.09% |   -2.466 us |  -0.13% |   FAST   |
|      I32      |      I32       |      I32      |      2^16      |  2048   |     1     |  18.384 us |       0.48% |  16.458 us |       2.56% |   -1.926 us | -10.48% |   FAST   |
|      I32      |      I32       |      I32      |      2^20      |  2048   |     1     |  33.828 us |       3.04% |  32.748 us |       0.18% |   -1.079 us |  -3.19% |   FAST   |
|      I32      |      I32       |      I32      |      2^24      |  2048   |     1     | 301.979 us |       0.35% | 300.464 us |       0.37% |   -1.515 us |  -0.50% |   FAST   |
|      I32      |      I32       |      I32      |      2^28      |  2048   |     1     |   4.632 ms |       0.08% |   4.630 ms |       0.08% |   -1.244 us |  -0.03% |   SAME   |
|      I32      |      I32       |      I32      |      2^16      | 2097152 |     1     |   7.930 ms |       0.08% |   7.935 ms |       0.08% |    4.465 us |   0.06% |   SAME   |
|      I32      |      I32       |      I32      |      2^20      | 2097152 |     1     |   9.031 ms |       0.17% |   9.029 ms |       0.18% |   -1.608 us |  -0.02% |   SAME   |
|      I32      |      I32       |      I32      |      2^24      | 2097152 |     1     |  11.348 ms |       0.08% |  11.350 ms |       0.08% |    1.863 us |   0.02% |   SAME   |
|      I32      |      I32       |      I32      |      2^28      | 2097152 |     1     |  46.402 ms |       0.21% |  46.427 ms |       0.22% |   25.033 us |   0.05% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.249 us |       2.10% |   9.208 us |      11.14% |   -1.041 us | -10.16% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   32    |   0.201   |  20.476 us |       0.75% |  19.435 us |       5.31% |   -1.042 us |  -5.09% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |   32    |   0.201   | 165.939 us |       0.20% | 164.816 us |       0.62% |   -1.123 us |  -0.68% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   32    |   0.201   |   2.485 ms |       0.08% |   2.484 ms |       0.08% |   -1.915 us |  -0.08% |   FAST   |
|      I64      |      I32       |      I32      |      2^16      |   128   |   0.201   |  10.221 us |       1.25% |   9.342 us |      10.76% |   -0.879 us |  -8.60% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   128   |   0.201   |  20.459 us |       0.27% |  19.433 us |       5.25% |   -1.026 us |  -5.02% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |   128   |   0.201   | 167.984 us |       0.23% | 166.594 us |       0.59% |   -1.390 us |  -0.83% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   128   |   0.201   |   2.514 ms |       0.07% |   2.512 ms |       0.07% |   -2.154 us |  -0.09% |   FAST   |
|      I64      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  14.311 us |       0.88% |  13.661 us |       6.85% |   -0.649 us |  -4.54% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  38.053 us |       3.26% |  34.955 us |       1.62% |   -3.098 us |  -8.14% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 401.812 us |       0.81% | 400.340 us |       0.86% |   -1.473 us |  -0.37% |   SAME   |
|      I64      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   6.135 ms |       0.31% |   6.134 ms |       0.30% |   -0.820 us |  -0.01% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   7.913 ms |       0.07% |   7.912 ms |       0.07% |   -1.327 us |  -0.02% |   SAME   |
|      I64      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |  10.850 ms |       0.11% |  10.851 ms |       0.11% |    0.651 us |   0.01% |   SAME   |
|      I64      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |  11.387 ms |       0.19% |  11.386 ms |       0.21% |   -0.405 us |  -0.00% |   SAME   |
|      I64      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |  18.688 ms |       0.16% |  18.655 ms |       0.39% |  -32.431 us |  -0.17% |   FAST   |
|      I64      |      I32       |      I32      |      2^16      |   32    |     1     |  10.238 us |       1.59% |   9.313 us |      10.87% |   -0.925 us |  -9.03% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   32    |     1     |  18.470 us |       1.69% |  17.689 us |       5.49% |   -0.781 us |  -4.23% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |   32    |     1     | 136.097 us |       0.76% | 134.467 us |       0.78% |   -1.630 us |  -1.20% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   32    |     1     |   1.956 ms |       0.11% |   1.954 ms |       0.11% |   -1.885 us |  -0.10% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      |   128   |     1     |  10.231 us |       1.83% |   9.210 us |      11.15% |   -1.021 us |  -9.98% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |   128   |     1     |  18.416 us |       0.97% |  17.279 us |       5.83% |   -1.137 us |  -6.17% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |   128   |     1     | 133.115 us |       0.18% | 131.265 us |       0.49% |   -1.849 us |  -1.39% |   FAST   |
|      I64      |      I32       |      I32      |      2^28      |   128   |     1     |   1.906 ms |       0.10% |   1.904 ms |       0.10% |   -2.473 us |  -0.13% |   FAST   |
|      I64      |      I32       |      I32      |      2^16      |  2048   |     1     |  16.348 us |       0.44% |  14.468 us |       3.67% |   -1.880 us | -11.50% |   FAST   |
|      I64      |      I32       |      I32      |      2^20      |  2048   |     1     |  38.888 us |       0.74% |  36.948 us |       1.26% |   -1.940 us |  -4.99% |   FAST   |
|      I64      |      I32       |      I32      |      2^24      |  2048   |     1     | 312.239 us |       0.88% | 310.905 us |       0.85% |   -1.334 us |  -0.43% |   SAME   |
|      I64      |      I32       |      I32      |      2^28      |  2048   |     1     |   4.720 ms |       0.23% |   4.718 ms |       0.23% |   -2.635 us |  -0.06% |   SAME   |
|      I64      |      I32       |      I32      |      2^16      | 2097152 |     1     |   7.918 ms |       0.07% |   7.920 ms |       0.08% |    1.758 us |   0.02% |   SAME   |
|      I64      |      I32       |      I32      |      2^20      | 2097152 |     1     |  11.027 ms |       0.13% |  11.025 ms |       0.14% |   -2.162 us |  -0.02% |   SAME   |
|      I64      |      I32       |      I32      |      2^24      | 2097152 |     1     |  13.314 ms |       0.09% |  13.310 ms |       0.08% |   -3.625 us |  -0.03% |   SAME   |
|      I64      |      I32       |      I32      |      2^28      | 2097152 |     1     |  49.357 ms |       0.16% |  49.345 ms |       0.16% |  -11.743 us |  -0.02% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.227 us |       0.54% |   8.721 us |      10.27% |   -1.506 us | -14.72% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   32    |   0.201   |  16.384 us |       0.00% |  14.326 us |       0.24% |   -2.058 us | -12.56% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   32    |   0.201   |  85.575 us |       0.97% |  83.660 us |       0.86% |   -1.915 us |  -2.24% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   32    |   0.201   |   1.202 ms |       0.08% |   1.201 ms |       0.10% |   -0.995 us |  -0.08% |   FAST   |
|      F32      |      I32       |      I32      |      2^16      |   128   |   0.201   |  10.218 us |       0.58% |   8.766 us |      10.32% |   -1.452 us | -14.21% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   128   |   0.201   |  16.336 us |       0.50% |  14.287 us |       0.49% |   -2.050 us | -12.55% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   128   |   0.201   |  83.985 us |       0.36% |  82.676 us |       1.20% |   -1.310 us |  -1.56% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   128   |   0.201   |   1.247 ms |       0.08% |   1.246 ms |       0.08% |   -1.254 us |  -0.10% |   FAST   |
|      F32      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  16.345 us |       0.45% |  14.301 us |       0.41% |   -2.044 us | -12.50% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  30.675 us |       0.55% |  28.662 us |       0.92% |   -2.013 us |  -6.56% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 344.819 us |       0.72% | 343.544 us |       0.77% |   -1.275 us |  -0.37% |   SAME   |
|      F32      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   5.229 ms |       0.17% |   5.227 ms |       0.18% |   -2.369 us |  -0.05% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   7.930 ms |       0.11% |   7.930 ms |       0.10% |    0.126 us |   0.00% |   SAME   |
|      F32      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |   8.901 ms |       0.11% |   8.898 ms |       0.11% |   -2.763 us |  -0.03% |   SAME   |
|      F32      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |   9.295 ms |       0.20% |   9.292 ms |       0.19% |   -2.246 us |  -0.02% |   SAME   |
|      F32      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |  14.761 ms |       0.25% |  14.733 ms |       0.55% |  -27.979 us |  -0.19% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      |   32    |     1     |  10.231 us |       0.39% |   8.328 us |       6.18% |   -1.903 us | -18.60% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   32    |     1     |  14.323 us |       0.32% |  12.346 us |       3.00% |   -1.977 us | -13.80% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   32    |     1     |  64.254 us |       1.55% |  62.916 us |       1.50% |   -1.338 us |  -2.08% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   32    |     1     | 741.906 us |       4.40% | 759.334 us |       5.37% |   17.428 us |   2.35% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      |   128   |     1     |  10.203 us |       0.75% |   8.377 us |       7.31% |   -1.826 us | -17.89% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |   128   |     1     |  14.320 us |       1.27% |  13.504 us |       7.18% |   -0.817 us |  -5.70% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |   128   |     1     |  63.879 us |       1.32% |  62.582 us |       1.66% |   -1.296 us |  -2.03% |   FAST   |
|      F32      |      I32       |      I32      |      2^28      |   128   |     1     | 748.301 us |       4.81% | 761.667 us |       6.13% |   13.366 us |   1.79% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      |  2048   |     1     |  18.402 us |       0.36% |  17.235 us |       5.86% |   -1.167 us |  -6.34% |   FAST   |
|      F32      |      I32       |      I32      |      2^20      |  2048   |     1     |  32.754 us |       0.67% |  32.135 us |       2.87% |   -0.619 us |  -1.89% |   FAST   |
|      F32      |      I32       |      I32      |      2^24      |  2048   |     1     | 293.778 us |       0.65% | 292.919 us |       0.75% |   -0.859 us |  -0.29% |   SAME   |
|      F32      |      I32       |      I32      |      2^28      |  2048   |     1     |   4.465 ms |       0.40% |   4.467 ms |       0.40% |    2.071 us |   0.05% |   SAME   |
|      F32      |      I32       |      I32      |      2^16      | 2097152 |     1     |   7.927 ms |       0.08% |   7.926 ms |       0.08% |   -0.475 us |  -0.01% |   SAME   |
|      F32      |      I32       |      I32      |      2^20      | 2097152 |     1     |   9.025 ms |       0.15% |   9.025 ms |       0.15% |   -0.286 us |  -0.00% |   SAME   |
|      F32      |      I32       |      I32      |      2^24      | 2097152 |     1     |  11.293 ms |       0.09% |  11.293 ms |       0.09% |   -0.302 us |  -0.00% |   SAME   |
|      F32      |      I32       |      I32      |      2^28      | 2097152 |     1     |  46.180 ms |       0.26% |  46.165 ms |       0.23% |  -14.843 us |  -0.03% |   SAME   |
|      F64      |      I32       |      I32      |      2^16      |   32    |   0.201   |  10.229 us |       0.44% |   8.182 us |       0.45% |   -2.047 us | -20.01% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   32    |   0.201   |  18.412 us |       0.24% |  16.374 us |       0.59% |   -2.038 us | -11.07% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   32    |   0.201   | 128.006 us |       0.80% | 126.197 us |       0.79% |   -1.809 us |  -1.41% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |   32    |   0.201   |   1.931 ms |       0.02% |   1.930 ms |       0.05% |   -0.966 us |  -0.05% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      |   128   |   0.201   |  10.210 us |       0.64% |   8.208 us |       2.90% |   -2.002 us | -19.61% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   128   |   0.201   |  18.390 us |       0.47% |  16.367 us |       1.14% |   -2.023 us | -11.00% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   128   |   0.201   | 125.960 us |       0.81% | 124.928 us |       0.00% |   -1.032 us |  -0.82% |   ????   |
|      F64      |      I32       |      I32      |      2^28      |   128   |   0.201   |   1.974 ms |       0.04% |   1.974 ms |       0.05% |   -0.779 us |  -0.04% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      |  2048   |   0.201   |  14.289 us |       0.57% |  12.267 us |       1.35% |   -2.022 us | -14.15% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |  2048   |   0.201   |  35.952 us |       2.95% |  33.492 us |       3.06% |   -2.460 us |  -6.84% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |  2048   |   0.201   | 371.183 us |       1.49% | 402.512 us |       0.97% |   31.329 us |   8.44% |   SLOW   |
|      F64      |      I32       |      I32      |      2^28      |  2048   |   0.201   |   5.462 ms |       0.28% |   5.837 ms |       0.21% |  374.535 us |   6.86% |   SLOW   |
|      F64      |      I32       |      I32      |      2^16      | 2097152 |   0.201   |   7.909 ms |       0.07% |   7.907 ms |       0.07% |   -1.731 us |  -0.02% |   SAME   |
|      F64      |      I32       |      I32      |      2^20      | 2097152 |   0.201   |  10.850 ms |       0.13% |  10.849 ms |       0.13% |   -1.052 us |  -0.01% |   SAME   |
|      F64      |      I32       |      I32      |      2^24      | 2097152 |   0.201   |  11.309 ms |       0.22% |  11.308 ms |       0.23% |   -0.710 us |  -0.01% |   SAME   |
|      F64      |      I32       |      I32      |      2^28      | 2097152 |   0.201   |  17.438 ms |       0.22% |  17.446 ms |       0.54% |    7.898 us |   0.05% |   SAME   |
|      F64      |      I32       |      I32      |      2^16      |   32    |     1     |  10.228 us |       0.49% |   8.189 us |       1.42% |   -2.038 us | -19.93% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   32    |     1     |  16.370 us |       0.32% |  14.393 us |       2.54% |   -1.977 us | -12.08% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   32    |     1     | 110.854 us |       2.14% | 109.341 us |       2.24% |   -1.513 us |  -1.36% |   SAME   |
|      F64      |      I32       |      I32      |      2^28      |   32    |     1     |   1.450 ms |       5.44% |   1.426 ms |       5.18% |  -24.458 us |  -1.69% |   SAME   |
|      F64      |      I32       |      I32      |      2^16      |   128   |     1     |  10.199 us |       0.75% |   8.333 us |       6.53% |   -1.866 us | -18.29% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |   128   |     1     |  18.397 us |       0.42% |  16.974 us |       5.45% |   -1.422 us |  -7.73% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |   128   |     1     | 111.365 us |       1.94% | 110.727 us |       2.23% |   -0.639 us |  -0.57% |   SAME   |
|      F64      |      I32       |      I32      |      2^28      |   128   |     1     |   1.496 ms |       4.78% |   1.502 ms |       4.59% |    6.077 us |   0.41% |   SAME   |
|      F64      |      I32       |      I32      |      2^16      |  2048   |     1     |  16.348 us |       0.45% |  14.586 us |       4.78% |   -1.762 us | -10.78% |   FAST   |
|      F64      |      I32       |      I32      |      2^20      |  2048   |     1     |  38.796 us |       1.20% |  36.864 us |       0.00% |   -1.932 us |  -4.98% |   FAST   |
|      F64      |      I32       |      I32      |      2^24      |  2048   |     1     | 309.494 us |       0.46% | 299.873 us |       0.69% |   -9.621 us |  -3.11% |   FAST   |
|      F64      |      I32       |      I32      |      2^28      |  2048   |     1     |   4.695 ms |       0.13% |   4.509 ms |       0.20% | -185.835 us |  -3.96% |   FAST   |
|      F64      |      I32       |      I32      |      2^16      | 2097152 |     1     |   7.917 ms |       0.07% |   7.913 ms |       0.07% |   -4.459 us |  -0.06% |   SAME   |
|      F64      |      I32       |      I32      |      2^20      | 2097152 |     1     |  11.038 ms |       0.12% |  11.038 ms |       0.12% |   -0.655 us |  -0.01% |   SAME   |
|      F64      |      I32       |      I32      |      2^24      | 2097152 |     1     |  13.280 ms |       0.08% |  13.281 ms |       0.08% |    0.385 us |   0.00% |   SAME   |
|      F64      |      I32       |      I32      |      2^28      | 2097152 |     1     |  48.845 ms |       0.18% |  48.836 ms |       0.18% |   -8.129 us |  -0.02% |   SAME   |

On the one run that regressed: I reran the benchmark and the regression went away, but other runs regressed a few percent again. It seems the results are not completely stable. I ran on node 6u1g-0010.

@github-project-automation github-project-automation Bot moved this to Todo in CCCL Oct 28, 2025
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@cccl-authenticator-app cccl-authenticator-app Bot moved this from Todo to In Progress in CCCL Oct 28, 2025
@bernhardmgruber bernhardmgruber changed the title Use PDL to DeviceHistogram Use PDL in DeviceHistogram Oct 28, 2025
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/ok to test 9ec444f

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miscco
miscco reviewed Oct 29, 2025
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Comment thread cub/cub/device/dispatch/kernels/histogram.cuh Outdated
_CCCL_PDL_GRID_DEPENDENCY_SYNC(); // TODO(bgruber): if we had the guarantee that there would be no pending
// writes/reads to the temp storage, we could omit the sync here

if (::cuda::std::reduce(num_output_bins_wrapper.begin(), num_output_bins_wrapper.end()) <= 2048)

@miscco miscco Oct 29, 2025

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That looks like some arbitrary constraint. Is there a proper named constant for 2048?

@bernhardmgruber bernhardmgruber Nov 1, 2025

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It seems you have seen a stale version of the PR. Refresh and enjoy a well named constant!

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bernhardmgruber marked this pull request as ready for review October 31, 2025 19:20
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@cccl-authenticator-app cccl-authenticator-app Bot moved this from In Progress to In Review in CCCL Oct 31, 2025
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bernhardmgruber requested a review from a team as a code owner November 1, 2025 22:24
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NaderAlAwar
NaderAlAwar approved these changes Nov 3, 2025
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Great speedups!

Comment thread c/parallel/src/histogram.cu Resolved
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🥳 CI Workflow Results

🟩 Finished in 4h 43m: Pass: 100%/86 | Total: 4d 11h | Max: 4h 23m | Hits: 66%/73464

See results here.

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bernhardmgruber merged commit 9384f40 into NVIDIA:main Nov 3, 2025
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bernhardmgruber deleted the pdl_hist branch November 3, 2025 20:30
@github-project-automation github-project-automation Bot moved this from In Review to Done in CCCL Nov 3, 2025
@bernhardmgruber bernhardmgruber mentioned this pull request May 28, 2026
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