wehub-resource-sync
37 lines
1.3 KiB
C++
37 lines
1.3 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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// TODO: Remove WAR once issue resolved in CUB (CUDA 12.6+?)
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#ifndef CUDA_VERSION
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#include <cuda.h>
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#endif // CUDA_VERSION
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#include "common/kernels/kernel.h"
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#include <cub/cub.cuh>
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template <typename KeyT, typename ValueT>
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size_t cubSortPairsWorkspaceSize(int32_t num_items, int32_t num_segments)
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{
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size_t temp_storage_bytes = 0;
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cub::DeviceSegmentedRadixSort::SortPairsDescending((void*) NULL, temp_storage_bytes, (KeyT const*) NULL,
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(KeyT*) NULL, (ValueT const*) NULL, (ValueT*) NULL,
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num_items, // # items
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num_segments, // # segments
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(int32_t const*) NULL, (int32_t const*) NULL);
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return temp_storage_bytes;
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}
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