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Fix PP TMA stage reuse race #660

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Fix PP TMA stage reuse race #660

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2 changes: 1 addition & 1 deletion deep_ep/include/deep_ep/impls/pp_send_recv.cuh
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Original file line number Diff line number Diff line change
Expand Up @@ -96,7 +96,7 @@ __device__ __forceinline__ void tma_copy(
// Prefetch: wait until this stage's buffer is safe to reuse, then issue next load
const auto next_iter_idx = iter_idx + kNumStages;
if (next_iter_idx < num_iterations) {
ptx::tma_store_wait<kNumStages - 1>();
ptx::tma_store_wait();
const auto [load_offset, num_load_bytes] = get_iter_info(next_iter_idx);
ptx::tma_load_1d(
tma_buffers + stage_idx * kNumTMABytesPerStage,
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