CUDA

[eos/hostdependX86LINUX64.git] / util / X86LINUX64 / cuda-6.5 / include / thrust / system / cuda / detail / trivial_copy.inl

diff --git a/util/X86LINUX64/cuda-6.5/include/thrust/system/cuda/detail/trivial_copy.inl b/util/X86LINUX64/cuda-6.5/include/thrust/system/cuda/detail/trivial_copy.inl
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+/*
+ *  Copyright 2008-2013 NVIDIA Corporation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#pragma once
+
+#include <thrust/detail/config.h>
+#include <thrust/system/cuda/detail/trivial_copy.h>
+#include <thrust/system/cuda/detail/guarded_cuda_runtime_api.h>
+#include <thrust/system_error.h>
+#include <thrust/system/cuda/error.h>
+#include <thrust/iterator/iterator_traits.h>
+#include <thrust/system/cpp/detail/execution_policy.h>
+#include <thrust/detail/raw_pointer_cast.h>
+
+namespace thrust
+{
+namespace system
+{
+namespace cuda
+{
+namespace detail
+{
+
+namespace trivial_copy_detail
+{
+
+inline void checked_cudaMemcpy(void *dst, const void *src, size_t count, enum cudaMemcpyKind kind)
+{
+  cudaError_t error = cudaMemcpy(dst,src,count,kind);
+  if(error)
+  {
+    throw thrust::system_error(error, thrust::cuda_category());
+  } // end error
+} // end checked_cudaMemcpy()
+
+
+template<typename System1,
+         typename System2>
+  cudaMemcpyKind cuda_memcpy_kind(const thrust::cuda::execution_policy<System1> &,
+                                  const thrust::cpp::execution_policy<System2> &)
+{
+  return cudaMemcpyDeviceToHost;
+} // end cuda_memcpy_kind()
+
+
+template<typename System1,
+         typename System2>
+  cudaMemcpyKind cuda_memcpy_kind(const thrust::cpp::execution_policy<System1> &,
+                                  const thrust::cuda::execution_policy<System2> &)
+{
+  return cudaMemcpyHostToDevice;
+} // end cuda_memcpy_kind()
+
+
+} // end namespace trivial_copy_detail
+
+
+template<typename DerivedPolicy,
+         typename RandomAccessIterator1,
+         typename Size,
+         typename RandomAccessIterator2>
+  void trivial_copy_n(execution_policy<DerivedPolicy> &exec,
+                      RandomAccessIterator1 first,
+                      Size n,
+                      RandomAccessIterator2 result)
+{
+  typedef typename thrust::iterator_value<RandomAccessIterator1>::type T;
+
+  void *dst = thrust::raw_pointer_cast(&*result);
+  const void *src = thrust::raw_pointer_cast(&*first);
+
+  trivial_copy_detail::checked_cudaMemcpy(dst, src, n * sizeof(T), cudaMemcpyDeviceToDevice);
+}
+
+
+template<typename System1,
+         typename System2,
+         typename RandomAccessIterator1,
+         typename Size,
+         typename RandomAccessIterator2>
+  void trivial_copy_n(cross_system<System1,System2> &systems,
+                      RandomAccessIterator1 first,
+                      Size n,
+                      RandomAccessIterator2 result)
+{
+  typedef typename thrust::iterator_value<RandomAccessIterator1>::type T;
+
+  void *dst = thrust::raw_pointer_cast(&*result);
+  const void *src = thrust::raw_pointer_cast(&*first);
+
+  cudaMemcpyKind kind = trivial_copy_detail::cuda_memcpy_kind(thrust::detail::derived_cast(systems.system1), thrust::detail::derived_cast(systems.system2));
+
+  trivial_copy_detail::checked_cudaMemcpy(dst, src, n * sizeof(T), kind);
+}
+
+
+} // end namespace detail
+} // end namespace cuda
+} // end namespace system
+} // end namespace thrust
+