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Unverified Commit 12ef7e3b authored by DefTruth's avatar DefTruth Committed by GitHub
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bugfix: fix merge_state_v2 cuda graph (#5419)

parent 838fa0f2
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Showing with 15 additions and 12 deletions
sgl-kernel/csrc/attention/merge_attn_states.cu
View file @ 12ef7e3b
......@@ -121,18 +121,18 @@ __global__ void merge_attn_states_kernel(
} \
}
#define LAUNCH_MERGE_ATTN_STATES(scalar_t, NUM_THREADS) \
{ \
merge_attn_states_kernel<scalar_t, NUM_THREADS><<<grid, block>>>( \
reinterpret_cast<scalar_t*>(output.data_ptr()), \
reinterpret_cast<float*>(output_lse.data_ptr()), \
reinterpret_cast<scalar_t*>(prefix_output.data_ptr()), \
reinterpret_cast<float*>(prefix_lse.data_ptr()), \
reinterpret_cast<scalar_t*>(suffix_output.data_ptr()), \
reinterpret_cast<float*>(suffix_lse.data_ptr()), \
num_tokens, \
num_heads, \
head_size); \
#define LAUNCH_MERGE_ATTN_STATES(scalar_t, NUM_THREADS) \
{ \
merge_attn_states_kernel<scalar_t, NUM_THREADS><<<grid, block, 0, stream>>>( \
reinterpret_cast<scalar_t*>(output.data_ptr()), \
reinterpret_cast<float*>(output_lse.data_ptr()), \
reinterpret_cast<scalar_t*>(prefix_output.data_ptr()), \
reinterpret_cast<float*>(prefix_lse.data_ptr()), \
reinterpret_cast<scalar_t*>(suffix_output.data_ptr()), \
reinterpret_cast<float*>(suffix_lse.data_ptr()), \
num_tokens, \
num_heads, \
head_size); \
}
/*@brief Merges the attention states from prefix and suffix
......@@ -170,6 +170,9 @@ void merge_attn_states_launcher(
dim3 block(NUM_THREADS);
dim3 grid((total_threads + NUM_THREADS - 1) / NUM_THREADS);
const c10::cuda::OptionalCUDAGuard device_guard(prefix_output.device());
auto stream = at::cuda::getCurrentCUDAStream();
LAUNCH_MERGE_ATTN_STATES(scalar_t, NUM_THREADS);
}
......
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