diff options
Diffstat (limited to 'src/graph2/backends/CL/CLDeviceBackend.cpp')
| -rw-r--r-- | src/graph2/backends/CL/CLDeviceBackend.cpp | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/graph2/backends/CL/CLDeviceBackend.cpp b/src/graph2/backends/CL/CLDeviceBackend.cpp new file mode 100644 index 0000000000..e06033121a --- /dev/null +++ b/src/graph2/backends/CL/CLDeviceBackend.cpp @@ -0,0 +1,175 @@ +/* + * 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/graph2/backends/CL/CLDeviceBackend.h" + +#include "arm_compute/graph2/Graph.h" +#include "arm_compute/graph2/GraphContext.h" +#include "arm_compute/graph2/INode.h" +#include "arm_compute/graph2/Logger.h" +#include "arm_compute/graph2/Tensor.h" +#include "arm_compute/graph2/backends/BackendRegistrar.h" +#include "arm_compute/graph2/backends/CL/CLFunctionFactory.h" +#include "arm_compute/graph2/backends/CL/CLSubTensorHandle.h" +#include "arm_compute/graph2/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 graph2 +{ +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.is_tuning_enabled()); + + // 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)); + } +} + +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) +{ + if(parent == nullptr) + { + return nullptr; + } + + return support::cpp14::make_unique<CLSubTensorHandle>(parent, shape, coords); +} + +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(const INode &node) +{ + ARM_COMPUTE_LOG_GRAPH_VERBOSE("Validating CL node with ID : " << node.id() << std::endl); + + ARM_COMPUTE_UNUSED(node); + + return Status{}; +} + +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 graph2 +} // namespace arm_compute
\ No newline at end of file |