51 lines
1.7 KiB
JSON
51 lines
1.7 KiB
JSON
{
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"status": "rejected",
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"reason": "The exact candidate missed the 6.0 ms isolated go threshold and cannot reliably clear the 1% complete-block gate.",
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"device": "NVIDIA GB10",
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"compute_capability": "SM121",
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"candidate": "Direct strided-NHD BF16 V to Sage2 padded/permuted FP8 V preparation",
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"contract": {
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"tensor_layout": "NHD",
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"head_dimension": 128,
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"scale_max": 2.25,
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"mainloop": "unchanged SageAttention 2.2.0 SM89 INT8-QK/FP8-PV mainloop"
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},
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"correctness": {
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"sequence_lengths": [1, 31, 32, 33, 63, 64, 65, 127, 128, 129, 37760, 37761, 37810],
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"heads": 56,
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"fp8_v": "byte-exact",
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"fp32_v_scale": "byte-exact"
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},
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"canonical_isolated_timing": {
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"sequence": 37810,
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"warmup": 5,
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"iterations": 20,
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"baseline_p50_ms": 10.56272,
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"candidate_p50_ms": 6.392816,
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"preparation_improvement_percent": 39.477,
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"absolute_saving_ms": 4.169904,
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"complete_block_baseline_ms": 458.78,
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"projected_complete_block_improvement_percent": 0.909
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},
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"gate": {
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"go_p50_ms": 6.0,
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"stop_p50_ms": 6.5,
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"result": "reject after the required borderline repeat",
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"complete_block_benchmark": "skipped",
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"trajectory_validation": "skipped",
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"runtime_integration": "not attempted"
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},
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"implementation": {
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"stages": [
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"64-row per-channel BF16 absolute maxima",
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"Sage-compatible approximate-reciprocal FP32 scale finalization",
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"direct E4M3 quantization into Sage2's padded and sequence-permuted layout"
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],
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"intermediate_bf16_transpose": "removed",
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"production_dispatch": "unchanged"
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},
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"source_artifacts": [
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"benchmarks/gb10-sage2-vprep-randomized.json",
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"benchmarks/gb10-sage2-vprep-canonical-repeat.json"
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]
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}
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