| /* |
| * Copyright (c) 2018 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/graph/backends/CL/CLDeviceBackend.h" |
| |
| #include "arm_compute/graph/Graph.h" |
| #include "arm_compute/graph/GraphContext.h" |
| #include "arm_compute/graph/INode.h" |
| #include "arm_compute/graph/Logger.h" |
| #include "arm_compute/graph/Tensor.h" |
| #include "arm_compute/graph/backends/BackendRegistrar.h" |
| #include "arm_compute/graph/backends/CL/CLFunctionFactory.h" |
| #include "arm_compute/graph/backends/CL/CLNodeValidator.h" |
| #include "arm_compute/graph/backends/CL/CLSubTensorHandle.h" |
| #include "arm_compute/graph/backends/CL/CLTensorHandle.h" |
| |
| #include "arm_compute/core/TensorInfo.h" |
| #include "arm_compute/runtime/BlobLifetimeManager.h" |
| #include "arm_compute/runtime/CL/CLBufferAllocator.h" |
| #include "arm_compute/runtime/CL/CLScheduler.h" |
| #include "arm_compute/runtime/MemoryManagerOnDemand.h" |
| #include "arm_compute/runtime/PoolManager.h" |
| |
| #include "support/ToolchainSupport.h" |
| |
| namespace arm_compute |
| { |
| namespace graph |
| { |
| namespace backends |
| { |
| namespace |
| { |
| bool file_exists(const std::string &filename) |
| { |
| std::ifstream file(filename); |
| return file.good(); |
| } |
| } // namespace |
| |
| /** Register CL backend */ |
| static detail::BackendRegistrar<CLDeviceBackend> CLDeviceBackend_registrar(Target::CL); |
| |
| /** Tuner export file */ |
| static const std::string tuner_data_filename = "acl_tuner.csv"; |
| |
| CLDeviceBackend::CLDeviceBackend() |
| : _tuner(), _allocator(cl::Context::getDefault()) |
| { |
| } |
| |
| CLDeviceBackend::~CLDeviceBackend() |
| { |
| // TODO (geopin01) : Shouldn't call non exception safe stuff here |
| if(_tuner.tune_new_kernels() && !_tuner.lws_table().empty()) |
| { |
| _tuner.save_to_file(tuner_data_filename); |
| } |
| } |
| |
| void CLDeviceBackend::set_kernel_tuning(bool enable_tuning) |
| { |
| _tuner.set_tune_new_kernels(enable_tuning); |
| } |
| |
| void CLDeviceBackend::initialize_backend() |
| { |
| // Load tuner data if available |
| if(_tuner.lws_table().empty() && file_exists(tuner_data_filename)) |
| { |
| _tuner.load_from_file(tuner_data_filename); |
| } |
| |
| // Setup Scheduler |
| CLScheduler::get().default_init(&_tuner); |
| |
| // Create allocator with new context |
| _allocator = CLBufferAllocator(); |
| } |
| |
| void CLDeviceBackend::setup_backend_context(GraphContext &ctx) |
| { |
| // Setup tuner |
| set_kernel_tuning(ctx.config().use_tuner); |
| |
| // Setup a management backend |
| if(ctx.memory_management_ctx(Target::CL) == nullptr) |
| { |
| MemoryManagerContext mm_ctx; |
| mm_ctx.target = Target::CL; |
| mm_ctx.mm = create_memory_manager(MemoryManagerAffinity::Buffer); |
| |
| ctx.insert_memory_management_ctx(std::move(mm_ctx)); |
| } |
| } |
| |
| bool CLDeviceBackend::is_backend_supported() |
| { |
| return arm_compute::opencl_is_available(); |
| } |
| |
| std::unique_ptr<ITensorHandle> CLDeviceBackend::create_tensor(const Tensor &tensor) |
| { |
| // Get tensor descriptor |
| const TensorDescriptor &tensor_desc = tensor.desc(); |
| ARM_COMPUTE_ERROR_ON(tensor_desc.target != Target::CL); |
| |
| // Create backend tensor handle |
| TensorInfo info(tensor_desc.shape, 1, tensor_desc.data_type); |
| auto backend_tensor_handle = support::cpp14::make_unique<CLTensorHandle>(info); |
| |
| return std::move(backend_tensor_handle); |
| } |
| |
| std::unique_ptr<ITensorHandle> CLDeviceBackend::create_subtensor(ITensorHandle *parent, TensorShape shape, Coordinates coords, bool extend_parent) |
| { |
| if(parent == nullptr) |
| { |
| return nullptr; |
| } |
| |
| return support::cpp14::make_unique<CLSubTensorHandle>(parent, shape, coords, extend_parent); |
| } |
| |
| std::unique_ptr<arm_compute::IFunction> CLDeviceBackend::configure_node(INode &node, GraphContext &ctx) |
| { |
| ARM_COMPUTE_LOG_GRAPH_VERBOSE("Configuring CL node with ID : " << node.id() << std::endl); |
| ARM_COMPUTE_ERROR_ON(node.assigned_target() != Target::CL); |
| |
| // Configure node |
| return CLFunctionFactory::create(&node, ctx); |
| } |
| |
| arm_compute::Status CLDeviceBackend::validate_node(INode &node) |
| { |
| ARM_COMPUTE_LOG_GRAPH_VERBOSE("Validating CL node with ID : " << node.id() << std::endl); |
| ARM_COMPUTE_ERROR_ON(node.assigned_target() != Target::CL); |
| |
| return CLNodeValidator::validate(&node); |
| } |
| |
| std::shared_ptr<arm_compute::IMemoryManager> CLDeviceBackend::create_memory_manager(MemoryManagerAffinity affinity) |
| { |
| if(affinity == MemoryManagerAffinity::Offset) |
| { |
| ARM_COMPUTE_LOG_GRAPH_WARNING("CL Backend does not support offset affinity memory management!"); |
| return nullptr; |
| } |
| |
| auto lifetime_mgr = std::make_shared<BlobLifetimeManager>(); |
| auto pool_mgr = std::make_shared<PoolManager>(); |
| auto mm = std::make_shared<MemoryManagerOnDemand>(lifetime_mgr, pool_mgr); |
| |
| mm->set_allocator(&_allocator); |
| |
| return mm; |
| } |
| } // namespace backends |
| } // namespace graph |
| } // namespace arm_compute |