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28 lines
1.1 KiB
C++
28 lines
1.1 KiB
C++
/*
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* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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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 "kernel.h"
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template <typename KeyT, typename ValueT>
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size_t cubSortPairsWorkspaceSize(int num_items, int num_segments) {
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size_t temp_storage_bytes = 0;
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cub::DeviceSegmentedRadixSort::SortPairsDescending(
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(void*)NULL, temp_storage_bytes, (const KeyT*)NULL, (KeyT*)NULL,
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(const ValueT*)NULL, (ValueT*)NULL,
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num_items, // # items
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num_segments, // # segments
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(const int*)NULL, (const int*)NULL);
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return temp_storage_bytes;
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}
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