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82 lines
2.2 KiB
82 lines
2.2 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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#include "paddle/fluid/platform/place.h"
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namespace paddle {
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namespace platform {
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namespace detail {
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class PlacePrinter : public boost::static_visitor<> {
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public:
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explicit PlacePrinter(std::ostream &os) : os_(os) {}
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void operator()(const CPUPlace &) { os_ << "CPUPlace"; }
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void operator()(const CUDAPlace &p) {
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os_ << "CUDAPlace(" << p.device << ")";
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}
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void operator()(const CUDAPinnedPlace &p) { os_ << "CUDAPinnedPlace"; }
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private:
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std::ostream &os_;
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};
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} // namespace detail
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static Place the_default_place;
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void set_place(const Place &place) { the_default_place = place; }
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const Place &get_place() { return the_default_place; }
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const CUDAPlace default_gpu() { return CUDAPlace(0); }
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const CPUPlace default_cpu() { return CPUPlace(); }
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const CUDAPinnedPlace default_cuda_pinned() { return CUDAPinnedPlace(); }
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bool is_gpu_place(const Place &p) {
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return boost::apply_visitor(IsCUDAPlace(), p);
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}
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bool is_cpu_place(const Place &p) {
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return boost::apply_visitor(IsCPUPlace(), p);
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}
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bool is_cuda_pinned_place(const Place &p) {
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return boost::apply_visitor(IsCUDAPinnedPlace(), p);
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}
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bool places_are_same_class(const Place &p1, const Place &p2) {
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return p1.which() == p2.which();
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}
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bool is_same_place(const Place &p1, const Place &p2) {
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if (places_are_same_class(p1, p2)) {
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if (is_cpu_place(p1) || is_cuda_pinned_place(p1)) {
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return true;
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} else {
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return boost::get<CUDAPlace>(p1) == boost::get<CUDAPlace>(p2);
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}
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} else {
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return false;
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}
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}
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std::ostream &operator<<(std::ostream &os, const Place &p) {
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detail::PlacePrinter printer(os);
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boost::apply_visitor(printer, p);
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return os;
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}
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} // namespace platform
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} // namespace paddle
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