Sylvain Jeaugey
56 rivejä
1.6 KiB
C++
56 rivejä
1.6 KiB
C++
/*************************************************************************
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* Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
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*
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* See LICENSE.txt for license information
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************************************************************************/
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#ifndef COPY_KERNEL_H_
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#define COPY_KERNEL_H_
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#include "common_kernel.h"
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template<typename T>
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struct FuncPassA {
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__device__ T operator()(const T x, const T y) const {
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return x;
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}
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};
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#ifdef CUDA_HAS_HALF
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template <>
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struct FuncPassA<half> {
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__device__ half2 operator()(const half2 x, const half2 y) const {
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return x;
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}
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__device__ half operator()(const half x, const half y) const {
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return x;
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}
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};
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#endif
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// Assumptions:
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// - there is exactly 1 block
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// - THREADS is the number of producer threads
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// - this function is called by all producer threads
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template<int UNROLL, int THREADS, typename T>
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__device__ void Copy(volatile T * __restrict__ const dest,
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const volatile T * __restrict__ const src, const int N) {
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ReduceOrCopy<UNROLL, THREADS, FuncPassA<T>, T, false, false>(threadIdx.x,
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dest, nullptr, src, nullptr, N);
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}
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// Assumptions:
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// - there is exactly 1 block
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// - THREADS is the number of producer threads
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// - this function is called by all producer threads
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template<int UNROLL, int THREADS, typename T>
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__device__ void DoubleCopy(volatile T * __restrict__ const dest0,
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volatile T * __restrict__ const dest1,
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const volatile T * __restrict__ const src, const int N) {
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ReduceOrCopy<UNROLL, THREADS, FuncPassA<T>, T, true, false>(threadIdx.x,
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dest0, dest1, src, nullptr, N);
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}
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#endif // COPY_KERNEL_H_
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