mindspore2022/mindspore/lite/include/context.h

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2.5 KiB
C++

/**
* Copyright 2020 Huawei Technologies Co., Ltd
*
* 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 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.
*/
#ifndef MINDSPORE_LITE_INCLUDE_CONTEXT_H_
#define MINDSPORE_LITE_INCLUDE_CONTEXT_H_
#include <string>
#include <memory>
#include "include/ms_tensor.h"
namespace mindspore::lite {
/// \brief Allocator defined a memory pool for malloc memory and free memory dynamically.
///
/// \note List public class and interface for reference.
class Allocator;
/// \brief CpuBindMode defined for holding bind cpu strategy argument.
enum CpuBindMode {
MID_CPU = -1, /**< bind middle cpu first */
HIGHER_CPU = 1, /**< bind higher cpu first */
NO_BIND = 0 /**< no bind */
};
/// \brief DeviceType defined for holding user's preferred backend.
typedef enum {
DT_CPU, /**< CPU device type */
DT_GPU, /**< GPU device type */
DT_NPU /**< NPU device type */
} DeviceType;
/// \brief DeviceContext defined for holding DeviceType.
typedef struct {
DeviceType type; /**< device type */
} DeviceContext;
/// \brief Context defined for holding environment variables during runtime.
class MS_API Context {
public:
/// \brief Constructor of MindSpore Lite Context using default value for parameters.
///
/// \return Instance of MindSpore Lite Context.
Context();
/// \brief Constructor of MindSpore Lite Context using input value for parameters.
///
/// \param[in] thread_num Define the work thread number during the runtime.
/// \param[in] allocator Define the allocator for malloc.
/// \param[in] device_ctx Define device information during the runtime.
Context(int thread_num, std::shared_ptr<Allocator> allocator, DeviceContext device_ctx);
/// \brief Destructor of MindSpore Lite Context.
virtual ~Context();
public:
bool float16_priority = false; /**< allow priority select float16 kernel */
DeviceContext device_ctx_{DT_CPU};
int thread_num_ = 2; /**< thread number config for thread pool */
std::shared_ptr<Allocator> allocator = nullptr;
CpuBindMode cpu_bind_mode_ = MID_CPU;
};
} // namespace mindspore::lite
#endif // MINDSPORE_LITE_INCLUDE_CONTEXT_H_