TensorRT-LLMs/cpp/tensorrt_llm/kernels/delayStream.cu
Yihan Wang 9df4dad3b6
[None][fix] Introduce inline namespace to avoid symbol collision (#9541)
Signed-off-by: Yihan Wang <yihwang@nvidia.com>
2025-12-12 23:32:15 +08:00

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/*
* Copyright (c) 2020-2024, NVIDIA CORPORATION. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "tensorrt_llm/common/config.h"
#include "tensorrt_llm/common/cudaUtils.h"
#include "tensorrt_llm/kernels/delayStream.h"
using namespace tensorrt_llm::common;
TRTLLM_NAMESPACE_BEGIN
namespace kernels
{
__global__ void delayStreamKernel(long long delay_micro_secs)
{
for (int i = 0; i < delay_micro_secs; ++i)
{
// The largest delay __nanosleep can do is 1 millisecond, thus we use for loop to achieve longer delay.
__nanosleep(1000);
}
}
void invokeDelayStreamKernel(long long delay_micro_secs, cudaStream_t stream)
{
delayStreamKernel<<<1, 1, 0, stream>>>(delay_micro_secs);
check_cuda_error(cudaGetLastError());
}
} // namespace kernels
TRTLLM_NAMESPACE_END