[GitHub] Caenorst commented on a change in pull request #11325: Added TensorRT runtime integration

[GitBox <gi...@apache.org>]

Caenorst commented on a change in pull request #11325: Added TensorRT runtime integration
URL: https://github.com/apache/incubator-mxnet/pull/11325#discussion_r199014063
 
 

 ##########
 File path: src/executor/tensorrt_pass.cc
 ##########
 @@ -0,0 +1,583 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/*!
+ * Copyright (c) 2018 by Contributors
+ * \file tensorrt_pass.cc
+ * \brief Replace TRT compatible subgraphs by TRT engines
+ * \author Clement Fuji Tsang
+ */
+
+#if MXNET_USE_TENSORRT
+
+#include <mxnet/base.h>
+#include <mxnet/operator.h>
+#include <mxnet/op_attr_types.h>
+#include <nnvm/graph_attr_types.h>
+#include <onnx/onnx.pb.h>
+#include <NvInfer.h>
+
+#include "./onnx_to_tensorrt.h"
+#include "./exec_pass.h"
+#include "../operator/contrib/nnvm_to_onnx-inl.h"
+
+namespace mxnet {
+namespace exec {
+
+using NodePtr = nnvm::NodePtr;
+
+/*!
+ * \brief Custom graph class, which will contain bi-directional nodes
+ * we need to compute DFS and reverse DFS for graph partitioning
+ */
+class BidirectionalGraph {
+ public:
+  struct Node {
+    nnvm::Node* nnvmptr;
+    std::vector<Node*> inputs;
+    std::vector<Node*> outputs;
+  };
+  std::vector<Node> nodes;
+  std::unordered_map<nnvm::Node*, uint32_t> nnvm2nid;
+  std::vector<Node*> outputs;
+  static const std::unordered_set<std::string> unconditionalTRTop;
+
+  explicit BidirectionalGraph(const Graph &g) {
+    auto& idx = g.indexed_graph();
+    auto num_nodes = idx.num_nodes();
+    nodes.reserve(num_nodes);
+    nnvm2nid.reserve(num_nodes);
 
 Review comment:
   It's actually not node id in the IndexedGraph but the position in the BidirectionalGraph `std::vector<Node*>` attribute `node` (position 

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services