From d9eb27597eabe5b7c17520f4f9b3f8a282d72573 Mon Sep 17 00:00:00 2001
From: Georgios Pinitas <georgios.pinitas@arm.com>
Date: Tue, 3 Apr 2018 13:44:29 +0100
Subject: 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>
---
 src/graph/GraphManager.cpp | 117 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 src/graph/GraphManager.cpp

(limited to 'src/graph/GraphManager.cpp')

diff --git a/src/graph/GraphManager.cpp b/src/graph/GraphManager.cpp
new file mode 100644
index 0000000000..759300e0c9
--- /dev/null
+++ b/src/graph/GraphManager.cpp
@@ -0,0 +1,117 @@
+/*
+ * 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/GraphManager.h"
+
+#include "arm_compute/graph/Graph.h"
+#include "arm_compute/graph/GraphContext.h"
+#include "arm_compute/graph/Logger.h"
+#include "arm_compute/graph/PassManager.h"
+#include "arm_compute/graph/Utils.h"
+#include "arm_compute/graph/detail/ExecutionHelpers.h"
+
+namespace arm_compute
+{
+namespace graph
+{
+GraphManager::GraphManager()
+    : _workloads()
+{
+    detail::default_initialize_backends();
+}
+
+void GraphManager::finalize_graph(Graph &graph, GraphContext &ctx, PassManager &pm, Target target)
+{
+    // Setup graph context if not done manually
+    setup_default_graph_context(ctx);
+
+    // Check if graph has been registered
+    ARM_COMPUTE_ERROR_ON_MSG(_workloads.find(graph.id()) != std::end(_workloads), "Graph is already registered!");
+
+    // Force target to all graph construct
+    // TODO (geopin01) : Support heterogeneous execution
+    Target forced_target = is_target_supported(target) ? target : get_default_target();
+    force_target_to_graph(graph, forced_target);
+
+    // Configure all tensors
+    detail::configure_all_tensors(graph);
+
+    // Apply all mutating passes
+    pm.run_all(graph);
+
+    // TODO (geopin01): Perform a graph validation
+
+    // Perform topological sort
+    // FIXME : Sort nodes and pass sorted indices in configure all nodes
+
+    // Validate all nodes
+    detail::validate_all_nodes(graph);
+
+    // Configure all nodes
+    auto workload = detail::configure_all_nodes(graph, ctx);
+    ARM_COMPUTE_ERROR_ON_MSG(workload.tasks.empty(), "Could not configure all nodes!");
+
+    // Allocate all tensors
+    detail::allocate_all_tensors(graph);
+
+    // Call accessors on all Const nodes
+    detail::call_all_const_node_accessors(graph);
+
+    _workloads.insert(std::make_pair(graph.id(), std::move(workload)));
+    ARM_COMPUTE_LOG_GRAPH_VERBOSE("Created workload for graph with ID : " << graph.id().get() << std::endl);
+
+    // Finalize Graph context
+    ctx.finalize();
+
+    // Make first run
+    execute_graph(graph);
+
+    // Release all unused const nodes
+    detail::release_unused_tensors(graph);
+}
+
+void GraphManager::execute_graph(Graph &graph)
+{
+    // Check if graph is finalized
+    auto it = _workloads.find(graph.id());
+    ARM_COMPUTE_ERROR_ON_MSG(it == std::end(_workloads), "Graph is not registered!");
+
+    // Call input accessors
+    detail::call_all_input_node_accessors(it->second);
+
+    // Run graph
+    detail::call_all_tasks(it->second);
+
+    // Call output accessors
+    detail::call_all_output_node_accessors(it->second);
+}
+
+void GraphManager::invalidate_graph(Graph &graph)
+{
+    auto it = _workloads.find(graph.id());
+    ARM_COMPUTE_ERROR_ON_MSG(it == std::end(_workloads), "Graph is not registered!");
+
+    _workloads.erase(it);
+}
+} // namespace graph
+} // namespace arm_compute
\ No newline at end of file
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