h3-blackwell-runtime/benchmarks/gb10-cute-p0-mlp-fc2-128rows.json

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{
"device": "NVIDIA GB10",
"torch": "2.9.1+cu130",
"cutlass_dsl": "4.6.2",
"metadata": {
"width": 1344,
"height": 768,
"frames": 124,
"steps": 12,
"sampler_step": 1,
"seed": 440420,
"text_tokens": 100,
"hidden_shape": [
37810,
5376
],
"segments": [
[
0,
100,
1
],
[
100,
514,
2
],
[
514,
37810,
0
]
]
},
"linear": "mlp_fc2",
"rows": 128,
"mnk": [
128,
5376,
14336
],
"tile_shape_mnk": [
128,
128,
256
],
"swap_nibbles": false,
"reencode_fp4": true,
"zero_a": false,
"cute_shapes": {
"a": "(128, 14336, 1)",
"b": "(5376, 14336, 1)",
"sfa": "(128, 896, 1)",
"sfb": "(5376, 896, 1)",
"c": "(128, 5376, 1)"
},
"tensor_scales": {
"a": 1.1953125,
"b": 0.001129150390625,
"alpha": 0.0013496875762939453
},
"raw_output": {
"dtype": "torch.bfloat16",
"checksum": -1057541632.0,
"max_abs": 10551296.0,
"nonzero": 688128,
"finite": true
},
"raw_blockscaled_parity": {
"reference_checksum": -1057548288.0,
"candidate_checksum": -1057541632.0,
"equal": false,
"max_abs": 8192.0,
"mean_abs": 0.01562502235174179
},
"reference_checksum": -1426062.125,
"candidate_checksum": -1428981.125,
"equal": false,
"max_abs": 64.0,
"mean_abs": 1.5995242595672607,
"relative_l2": 0.002791827078908682,
"numerical_note": "The stock SM121 kernel's validated BF16 epilogue rounds before the external global-scale product. Exact H3 integration requires applying alpha in a custom epilogue before BF16 conversion."
}