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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. 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.
*/
#ifndef __NEURUN_COMPILER_BACKEND_RESOLVER_H__
#define __NEURUN_COMPILER_BACKEND_RESOLVER_H__
#include <set>
#include <unordered_map>
#include <typeindex>
#include "util/logging.h"
#include "util/config/ConfigManager.h"
#include "backend/BackendManager.h"
#include "backend/interface/IStageGenerator.h"
namespace neurun
{
namespace compiler
{
class BackendResolver
{
public:
BackendResolver(const neurun::model::operand::Set &operands)
{
_backend_manager = std::make_shared<backend::BackendManager>(operands);
const auto backend_all_str =
config::ConfigManager::instance().get<std::string>("OP_BACKEND_ALLOPS");
if (backend_all_str.compare("none") != 0)
{
VERBOSE(BackendResolver) << "Use backend for all ops: " << backend_all_str << std::endl;
#define OP(InternalName, IsNnApi, NnApiName) \
if (IsNnApi) \
{ \
auto backend = _backend_manager->get(backend_all_str); \
_gen_map[typeid(model::operation::InternalName)] = backend; \
}
#include "model/operation/Op.lst"
#undef OP
}
else
{
#define OP(InternalName, IsNnApi, NnApiName) \
if (IsNnApi) \
{ \
const auto &backend_str = \
config::ConfigManager::instance().get<std::string>("OP_BACKEND_" #NnApiName); \
auto backend = _backend_manager->get(backend_str); \
VERBOSE(BackendResolver) << "backend for " << #NnApiName << ": " << backend_str << std::endl; \
_gen_map[typeid(model::operation::InternalName)] = backend; \
}
#include "model/operation/Op.lst"
#undef OP
}
}
public:
const backend::Backend *getBackend(const std::type_index &type) { return _gen_map[type]; }
const backend::Backend *getDefaultBackend() const
{
backend::Backend *default_backend = _backend_manager->get("cpu");
return default_backend;
}
private:
std::unordered_map<std::type_index, backend::Backend *> _gen_map;
std::shared_ptr<backend::BackendManager> _backend_manager;
};
} // namespace compiler
} // namespace neurun
#endif // __NEURUN_COMPILER_BACKEND_RESOLVER_H__
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