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/*
* Copyright (c) 2018-2019 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_GRAPH_CLDEVICEBACKEND_H
#define ARM_COMPUTE_GRAPH_CLDEVICEBACKEND_H
#include "arm_compute/graph/IDeviceBackend.h"
#include "arm_compute/runtime/CL/CLBufferAllocator.h"
#include "arm_compute/runtime/CL/CLTuner.h"
namespace arm_compute
{
namespace graph
{
namespace backends
{
/** OpenCL device backend */
class CLDeviceBackend final : public IDeviceBackend
{
public:
/** Default Constructor */
CLDeviceBackend();
/** Destructor */
~CLDeviceBackend();
/** Switchs on or off the kernel tuning
*
* @note When true the tuner set is used, if no tuner is set a new default one is created
*
* @param[in] enable_tuning Enables tuning if false else true
*/
void set_kernel_tuning(bool enable_tuning);
/** Set kernel tuning mode
*
* @param[in] tuning_mode Indicates how exhaustive the search for the optimal LWS should be while tuning
*/
void set_kernel_tuning_mode(CLTunerMode tuning_mode);
// Inherited overridden methods
void initialize_backend() override;
void setup_backend_context(GraphContext &ctx) override;
void release_backend_context(GraphContext &ctx) override;
bool is_backend_supported() override;
IAllocator *backend_allocator() override;
std::unique_ptr<ITensorHandle> create_tensor(const Tensor &tensor) override;
std::unique_ptr<ITensorHandle> create_subtensor(ITensorHandle *parent, TensorShape shape, Coordinates coords, bool extend_parent) override;
std::unique_ptr<arm_compute::IFunction> configure_node(INode &node, GraphContext &ctx) override;
Status validate_node(INode &node) override;
std::shared_ptr<arm_compute::IMemoryManager> create_memory_manager(MemoryManagerAffinity affinity) override;
std::shared_ptr<arm_compute::IWeightsManager> create_weights_manager() override;
private:
int _context_count; /**< Counts how many contexts are currently using the backend */
CLTuner _tuner; /**< CL kernel tuner */
std::unique_ptr<CLBufferAllocator> _allocator; /**< CL buffer affinity allocator */
std::string _tuner_file; /**< Filename to load/store the tuner's values from */
};
} // namespace backends
} // namespace graph
} // namespace arm_compute
#endif //ARM_COMPUTE_GRAPH_CLDEVICEBACKEND_H
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