[Flex Attention] Add a Triton version so we can test autoWS#983
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manman-ren wants to merge 7 commits intomainfrom
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[Flex Attention] Add a Triton version so we can test autoWS#983manman-ren wants to merge 7 commits intomainfrom
manman-ren wants to merge 7 commits intomainfrom
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Summary: Test Plan: Reviewers: Subscribers: Tasks: Tags:
Summary:
if is_full:
forward_block_mn(..., IS_FULL_BLOCKS=True) # compile-time specialized
else:
forward_block_mn(..., IS_FULL_BLOCKS=False) # compile-time specialized
This can cause an issue with autoWS, we can use a variable.
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Summary: Test Plan: Reviewers: Subscribers: Tasks: Tags:
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Branchless masking to avoid scf.if with else blocks (unsupported by
WSSpecialize), add merge_epilogue annotation, use tl.where instead of
Python ternary for runtime conditionals, and add BLOCK_M=128 WS config.
Authored with Claude.
dp_factor of 1 works
CUDA_VISIBLE_DEVICES=5 TORCHINDUCTOR_COMPILE_THREADS=1 TRITON_USE_META_PARTITION=1 TRITON_USE_META_WS=1 python run.py --op flex_attention --mode fwd --only triton_ws,compiled --seq-len 1024 --mod-type causal --force --metrics accuracy --baseline compiled
(B, Hq, M, Hkv, N, D) | Mask Type triton_ws-accuracy
---------------------------------------------- --------------------
(8, 16, 1024, 16, 1024, 128) | causal 1
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