1 /* 2 * Copyright (c) 2018-2021 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_GRAPH_CLDEVICEBACKEND_H 25 #define ARM_COMPUTE_GRAPH_CLDEVICEBACKEND_H 26 27 #include "arm_compute/graph/IDeviceBackend.h" 28 29 #include "arm_compute/runtime/CL/CLBufferAllocator.h" 30 #include "arm_compute/runtime/CL/CLGEMMHeuristicsHandle.h" 31 #include "arm_compute/runtime/CL/CLTuner.h" 32 #include "arm_compute/runtime/CL/CLTypes.h" 33 34 namespace arm_compute 35 { 36 namespace graph 37 { 38 namespace backends 39 { 40 /** OpenCL device backend */ 41 class CLDeviceBackend final : public IDeviceBackend 42 { 43 public: 44 /** Default Constructor */ 45 CLDeviceBackend(); 46 /** Destructor */ 47 ~CLDeviceBackend(); 48 /** Switchs on or off the kernel tuning 49 * 50 * @note When true the tuner set is used, if no tuner is set a new default one is created 51 * 52 * @param[in] enable_tuning Enables tuning if false else true 53 */ 54 void set_kernel_tuning(bool enable_tuning); 55 /** Set kernel tuning mode 56 * 57 * @param[in] tuning_mode Indicates how exhaustive the search for the optimal LWS should be while tuning 58 */ 59 void set_kernel_tuning_mode(CLTunerMode tuning_mode); 60 61 // Inherited overridden methods 62 void initialize_backend() override; 63 void setup_backend_context(GraphContext &ctx) override; 64 void release_backend_context(GraphContext &ctx) override; 65 bool is_backend_supported() override; 66 IAllocator *backend_allocator() override; 67 std::unique_ptr<ITensorHandle> create_tensor(const Tensor &tensor) override; 68 std::unique_ptr<ITensorHandle> create_subtensor(ITensorHandle *parent, TensorShape shape, Coordinates coords, bool extend_parent) override; 69 std::unique_ptr<arm_compute::IFunction> configure_node(INode &node, GraphContext &ctx) override; 70 Status validate_node(INode &node) override; 71 std::shared_ptr<arm_compute::IMemoryManager> create_memory_manager(MemoryManagerAffinity affinity) override; 72 std::shared_ptr<arm_compute::IWeightsManager> create_weights_manager() override; 73 void sync() override; 74 75 private: 76 int _context_count; /**< Counts how many contexts are currently using the backend */ 77 CLTuner _tuner; /**< CL kernel tuner */ 78 CLGEMMHeuristicsHandle _gemm_heuristics; /**< GEMM heuristics */ 79 std::unique_ptr<CLBufferAllocator> _allocator; /**< CL buffer affinity allocator */ 80 std::string _tuner_file; /**< Filename to load/store the tuner's values from */ 81 CLBackendType _backend_type; /**< OpenCL backend type to use */ 82 }; 83 } // namespace backends 84 } // namespace graph 85 } // namespace arm_compute 86 #endif //ARM_COMPUTE_GRAPH_CLDEVICEBACKEND_H 87