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/******************************************************************************
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* Copyright (c) 2011, Duane Merrill. All rights reserved.
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* Copyright (c) 2011-2013, NVIDIA CORPORATION. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the NVIDIA CORPORATION nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY
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******************************************************************************/
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* The cub::BlockHistogramAtomic class provides atomic-based methods for constructing block-wide histograms from data samples partitioned across a CUDA thread block.
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#include "../../util_namespace.cuh"
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/// Optional outer namespace(s)
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* \brief The BlockHistogramAtomic class provides atomic-based methods for constructing block-wide histograms from data samples partitioned across a CUDA thread block.
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struct BlockHistogramAtomic
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/// Shared memory storage layout type
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struct TempStorage {};
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__device__ __forceinline__ BlockHistogramAtomic(
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TempStorage &temp_storage,
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/// Composite data onto an existing histogram
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typename HistoCounter>
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__device__ __forceinline__ void Composite(
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T (&items)[ITEMS_PER_THREAD], ///< [in] Calling thread's input values to histogram
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HistoCounter histogram[BINS]) ///< [out] Reference to shared/global memory histogram
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for (int i = 0; i < ITEMS_PER_THREAD; ++i)
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atomicAdd(histogram + items[i], 1);
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CUB_NS_POSTFIX // Optional outer namespace(s)