wehub-resource-sync
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
/*
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* SPDX-FileCopyrightText: Copyright (c) 1993-2024 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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/*
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**************************************************************************
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* Modified from mmcv (https://github.com/open-mmlab/mmcv/tree/master/mmcv)
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* Copyright (c) OpenMMLab. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 [see LICENSE for details]
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* https://github.com/open-mmlab/mmcv/blob/master/LICENSE
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**************************************************************************
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*/
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#ifndef TRT_COMMON_CUDA_HELPER_H
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#define TRT_COMMON_CUDA_HELPER_H
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#include <cstdint>
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#include <cuda.h>
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constexpr int32_t THREADS_PER_BLOCK{512};
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inline int32_t get_blocks(int32_t const N, int32_t const numThreads = THREADS_PER_BLOCK)
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{
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int32_t optimalBlockNum = (N + numThreads - 1) / numThreads;
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int32_t maxBlockNum = 4096;
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return min(optimalBlockNum, maxBlockNum);
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}
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#endif // TRT_COMMON_CUDA_HELPER_H
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