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/*
* Copyright (c) 2017 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.
*/
#ifndef __ARM_COMPUTE_ISCHEDULER_H__
#define __ARM_COMPUTE_ISCHEDULER_H__
#include "arm_compute/core/CPP/CPPTypes.h"
namespace arm_compute
{
class ICPPKernel;
/** Scheduler interface to run kernels */
class IScheduler
{
public:
/** Default constructor. */
IScheduler()
: _target(CPUTarget::INTRINSICS)
{
}
/** Destructor. */
virtual ~IScheduler() = default;
/** Sets the number of threads the scheduler will use to run the kernels.
*
* @param[in] num_threads If set to 0, then one thread per CPU core available on the system will be used, otherwise the number of threads specified.
*/
virtual void set_num_threads(unsigned int num_threads) = 0;
/** Returns the number of threads that the SingleThreadScheduler has in his pool.
*
* @return Number of threads available in SingleThreadScheduler.
*/
virtual unsigned int num_threads() const = 0;
/** Runs the kernel in the same thread as the caller synchronously.
*
* @param[in] kernel Kernel to execute.
* @param[in] split_dimension Dimension along which to split the kernel's execution window.
*/
virtual void schedule(ICPPKernel *kernel, unsigned int split_dimension) = 0;
/** Sets the target CPU architecture.
*
* @param[in] target Target CPU.
*/
void set_target(CPUTarget target);
/** Return the current CPU target.
*
* @return Target CPU.
*/
CPUTarget target() const;
protected:
CPUTarget _target;
};
inline void IScheduler::set_target(CPUTarget target)
{
_target = target;
}
inline CPUTarget IScheduler::target() const
{
return _target;
}
}
#endif /* __ARM_COMPUTE_ISCHEDULER_H__ */
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