Claude
a8ca42b59c
perf: hgemm_warptiling Config B — beats cublas on MoE-sized GEMM (0.7x)
probe_k10_configs.sh results on BI-V100:
256x4096 @ 4096x11008:
cublas: 10.554 ms
Config B: 7.649 ms (0.7x cublas — FASTER)
Config A: 2308 ms (old broken config)
Config B: BM128 BN128 BK16 WM64 WN64 WNITER2 TM8 TN4 NT128
Root cause of Config A slowness: WN=128 WNITER=4 caused
excessive register pressure and smem bank conflicts.
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