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HKUSTDial / flash-sparse-attention Public

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[BUG FIX] Optimize LSE computation in forward combine kernel#265

Merged

LoserCheems merged 5 commits intomainHKUSTDial/flash-sparse-attention:mainfrom

optim-combine-funcHKUSTDial/flash-sparse-attention:optim-combine-funcCopy head branch name to clipboard

Apr 14, 2026

Conversation Commits5 (5)Checks Files changed

Merged

[BUG FIX] Optimize LSE computation in forward combine kernel#265
LoserCheems merged 5 commits intomainfrom
optim-combine-func

Commits

Commits on Apr 14, 2026

Refactor _fwd_combine_kernel to optimize LSE computation and remove unused variables
LoserCheems
committed
Remove head_dim parameter from get_fwd_combine_grid function
LoserCheems
committed
Add IS_LOG2 parameter to finalize function for logsumexp output control
LoserCheems
committed
Optimize exponentiation in _fwd_combine_kernel using exp2 and log2 for improved performance
LoserCheems
committed
Add IS_LOG2 parameter to kernel functions for logsumexp output control
LoserCheems
committed

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