COMPMID-797: Switch to new graph.

- Cleaned up build system

Change-Id: If2faa27ee5b31fa8b972836960ab3ef671059c8d
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/126435
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>

1 files changed, 180 insertions, 0 deletions

diff --git a/src/graph/backends/CL/CLDeviceBackend.cpp b/src/graph/backends/CL/CLDeviceBackend.cpp
new file mode 100644
index 0000000000..f10eb33a98
--- /dev/null
+++ b/src/graph/backends/CL/CLDeviceBackend.cpp
@@ -0,0 +1,180 @@
+/*
+ * 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
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