b-shi commented on issue #17980:
URL:
https://github.com/apache/incubator-mxnet/issues/17980#issuecomment-675738532
Hi, we benchmarked gemm performance for those sizes internally using oneDNN
vs oneMKL directly and here is what we got:
| Max (20K trials) GFlops | oneMKL (1Th) | oneDNN (1Th) | oneMKL (4Th) |
oneDNN (4Th) | oneMKL (8Th) | oneDNN (8Th) | oneMKL (28Th) | oneDNN (28Th) |
|-------------------------|--------------|--------------|--------------|--------------|--------------|--------------|---------------|---------------|
| 5, 512, 512 | 34.49 | 40.96 | 174.76 |
262.14 | 291.27 | 436.91 | 374.49 | 524.29 |
| 5, 512, 1536 | 26.57 | 27.40 | 178.73 |
231.30 | 357.47 | 491.52 | 561.74 | 873.81 |
| 5, 512, 2048 | 25.83 | 26.55 | 143.64 |
174.76 | 338.25 | 436.91 | 616.81 | 1048.58 |
| 5, 2048, 512 | 25.51 | 26.82 | 139.81 |
183.96 | 388.36 | 524.29 | 873.81 | 1310.72 |
| 4, 512, 512 | 31.78 | 42.80 | 161.32 |
233.02 | 262.14 | 419.43 | 299.59 | 419.43 |
| Avg (20K trials) GFlops | oneMKL (1Th) | oneDNN (1Th) | oneMKL (4Th) |
oneDNN (4Th) | oneMKL (8Th) | oneDNN (8Th) | oneMKL (28Th) | oneDNN (28Th) |
|-------------------------|--------------|--------------|--------------|--------------|--------------|--------------|---------------|---------------|
| 5, 512, 512 | 33.96 | 39.45 | 169.05 |
233.88 | 258.32 | 364.93 | 328.68 | 399.95 |
| 5, 512, 1536 | 26.30 | 27.13 | 174.04 |
226.75 | 342.51 | 463.81 | 492.14 | 765.09 |
| 5, 512, 2048 | 25.58 | 26.35 | 140.57 |
171.42 | 328.70 | 429.25 | 589.81 | 873.36 |
| 5, 2048, 512 | 25.27 | 26.57 | 137.35 |
179.91 | 368.89 | 508.38 | 792.29 | 1101.67 |
| 4, 512, 512 | 31.02 | 41.91 | 146.59 |
216.20 | 226.68 | 335.54 | 271.98 | 334.98 |
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