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/*
* Copyright (c) 2017-2020 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "arm_compute/runtime/Scheduler.h"
#include "arm_compute/core/Error.h"
#include "support/MemorySupport.h"
#if ARM_COMPUTE_CPP_SCHEDULER
#include "arm_compute/runtime/CPP/CPPScheduler.h"
#endif /* ARM_COMPUTE_CPP_SCHEDULER */
#include "arm_compute/runtime/SingleThreadScheduler.h"
#if ARM_COMPUTE_OPENMP_SCHEDULER
#include "arm_compute/runtime/OMP/OMPScheduler.h"
#endif /* ARM_COMPUTE_OPENMP_SCHEDULER */
using namespace arm_compute;
#if !ARM_COMPUTE_CPP_SCHEDULER && ARM_COMPUTE_OPENMP_SCHEDULER
Scheduler::Type Scheduler::_scheduler_type = Scheduler::Type::OMP;
#elif ARM_COMPUTE_CPP_SCHEDULER && !ARM_COMPUTE_OPENMP_SCHEDULER
Scheduler::Type Scheduler::_scheduler_type = Scheduler::Type::CPP;
#elif ARM_COMPUTE_CPP_SCHEDULER && ARM_COMPUTE_OPENMP_SCHEDULER
Scheduler::Type Scheduler::_scheduler_type = Scheduler::Type::CPP;
#else /* ARM_COMPUTE_*_SCHEDULER */
Scheduler::Type Scheduler::_scheduler_type = Scheduler::Type::ST;
#endif /* ARM_COMPUTE_*_SCHEDULER */
std::shared_ptr<IScheduler> Scheduler::_custom_scheduler = nullptr;
namespace
{
std::map<Scheduler::Type, std::unique_ptr<IScheduler>> init()
{
std::map<Scheduler::Type, std::unique_ptr<IScheduler>> m;
m[Scheduler::Type::ST] = support::cpp14::make_unique<SingleThreadScheduler>();
#if defined(ARM_COMPUTE_CPP_SCHEDULER)
m[Scheduler::Type::CPP] = support::cpp14::make_unique<CPPScheduler>();
#endif // defined(ARM_COMPUTE_CPP_SCHEDULER)
#if defined(ARM_COMPUTE_OPENMP_SCHEDULER)
m[Scheduler::Type::OMP] = support::cpp14::make_unique<OMPScheduler>();
#endif // defined(ARM_COMPUTE_OPENMP_SCHEDULER)
return m;
}
} // namespace
std::map<Scheduler::Type, std::unique_ptr<IScheduler>> Scheduler::_schedulers = init();
void Scheduler::set(Type t)
{
ARM_COMPUTE_ERROR_ON(!Scheduler::is_available(t));
_scheduler_type = t;
}
bool Scheduler::is_available(Type t)
{
if(t == Type::CUSTOM)
{
return _custom_scheduler != nullptr;
}
else
{
return _schedulers.find(t) != _schedulers.end();
}
}
Scheduler::Type Scheduler::get_type()
{
return _scheduler_type;
}
IScheduler &Scheduler::get()
{
if(_scheduler_type == Type::CUSTOM)
{
if(_custom_scheduler == nullptr)
{
ARM_COMPUTE_ERROR("No custom scheduler has been setup. Call set(std::shared_ptr<IScheduler> &scheduler) before Scheduler::get()");
}
else
{
return *_custom_scheduler;
}
}
else
{
auto it = _schedulers.find(_scheduler_type);
if(it != _schedulers.end())
{
return *it->second;
}
else
{
ARM_COMPUTE_ERROR("Invalid Scheduler type");
}
}
}
void Scheduler::set(std::shared_ptr<IScheduler> scheduler)
{
_custom_scheduler = std::move(scheduler);
set(Type::CUSTOM);
}
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