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paddlepaddle--paddle/paddle/phi/backends/device_guard.h
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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
//
// 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 "paddle/phi/backends/device_manager.h"
namespace phi {
class DeviceGuard {
public:
explicit inline DeviceGuard(const Place& place)
: cur_id(place.GetDeviceId()), dev_type_(place.GetDeviceType()) {
DeviceManager::SetDevice(dev_type_, cur_id);
}
DeviceGuard(const DeviceGuard& o) = delete;
DeviceGuard& operator=(const DeviceGuard& o) = delete;
private:
size_t cur_id;
std::string dev_type_;
};
} // namespace phi