wehub-resource-sync
50 lines
1.6 KiB
Plaintext
50 lines
1.6 KiB
Plaintext
/*
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* SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "delayStreamKernel.h"
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#include <tuple>
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#ifndef TRT_SAFETY_INFERENCE_ONLY
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namespace
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{
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__global__ void delayKernel(long long nanoSeconds)
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{
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// It is supported with compute capability 7.0 or higher.
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__nanosleep(nanoSeconds);
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}
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} // namespace
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#endif // TRT_SAFETY_INFERENCE_ONLY
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namespace nvinfer1
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{
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cudaError_t delayStream(cudaStream_t stream, float timeInMsec) noexcept
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{
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#ifndef TRT_SAFETY_INFERENCE_ONLY
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auto nanoSeconds = static_cast<long long>(1000000 * timeInMsec);
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delayKernel<<<1, 1, 0, stream>>>(nanoSeconds);
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return cudaGetLastError();
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#else
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// QNX SafeCUDA does not support PTX JIT or __cudaLaunchKernel; the delay is
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// optional timing-measurement padding and has no effect on inference correctness.
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std::ignore = stream;
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std::ignore = timeInMsec;
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return cudaSuccess;
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#endif // TRT_SAFETY_INFERENCE_ONLY
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}
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} // namespace nvinfer1
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