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[ROCM][AMD][TRITON] Halving warps number for fw_prefill to reduce spilling #12713

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Merged
merged 1 commit into from
Feb 5, 2025
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[ROCM][AMD][TRITON] Halving warps number for fw_prefill to reduce spilling #12713

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2 changes: 1 addition & 1 deletion vllm/attention/ops/prefix_prefill.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,7 @@

# Static kernels parameters
BASE_BLOCK = 128 if current_platform.has_device_capability(80) else 64
NUM_WARPS = 8
NUM_WARPS = 4 if current_platform.is_rocm() else 8

# To check compatibility
IS_TURING = current_platform.get_device_capability() == (7, 5)
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