1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* 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/detail/allocator/temporary_allocator.h>
#include <thrust/detail/temporary_buffer.h>
#include <thrust/system/detail/bad_alloc.h>
#include <cassert>
#if (defined(_NVHPC_CUDA) || defined(__CUDA_ARCH__)) && \
THRUST_DEVICE_SYSTEM == THRUST_DEVICE_SYSTEM_CUDA
#include <thrust/system/cuda/detail/terminate.h>
#endif
THRUST_NAMESPACE_BEGIN
namespace detail
{
template<typename T, typename System>
__host__ __device__
typename temporary_allocator<T,System>::pointer
temporary_allocator<T,System>
::allocate(typename temporary_allocator<T,System>::size_type cnt)
{
pointer_and_size result = thrust::get_temporary_buffer<T>(system(), cnt);
// handle failure
if(result.second < cnt)
{
// deallocate and throw
// note that we pass cnt to deallocate, not a value derived from result.second
deallocate(result.first, cnt);
if (THRUST_IS_HOST_CODE) {
#if THRUST_INCLUDE_HOST_CODE
throw thrust::system::detail::bad_alloc("temporary_buffer::allocate: get_temporary_buffer failed");
#endif
} else {
#if THRUST_INCLUDE_DEVICE_CODE && THRUST_DEVICE_SYSTEM == THRUST_DEVICE_SYSTEM_CUDA
thrust::system::cuda::detail::terminate_with_message("temporary_buffer::allocate: get_temporary_buffer failed");
#endif
}
} // end if
return result.first;
} // end temporary_allocator::allocate()
template<typename T, typename System>
__host__ __device__
void temporary_allocator<T,System>
::deallocate(typename temporary_allocator<T,System>::pointer p, typename temporary_allocator<T,System>::size_type n)
{
return thrust::return_temporary_buffer(system(), p, n);
} // end temporary_allocator
} // end detail
THRUST_NAMESPACE_END
|
