ptrendx commented on a change in pull request #15167: [WIP] Pointwise fusion
for GPU
URL: https://github.com/apache/incubator-mxnet/pull/15167#discussion_r297855409
##########
File path: src/common/exec_utils.h
##########
@@ -622,6 +622,51 @@ inline nnvm::Graph AssignContext(nnvm::Graph g,
return g;
}
+inline void CopyGraph(nnvm::Graph *dst, const nnvm::Graph &src, bool
copy_variables) {
+ using nnvm::Node;
+ using nnvm::NodePtr;
+ using nnvm::NodeEntry;
+ std::unordered_map<Node*, NodePtr> old_new;
+ // use DFSVisit to copy all the nodes
+ DFSVisit(src.outputs, [&old_new, copy_variables](const NodePtr& node) {
+ NodePtr np;
+ if (copy_variables || !node->is_variable()) {
+ np = Node::Create();
+ np->attrs = node->attrs;
+ } else {
+ np = node;
+ }
+ old_new[node.get()] = std::move(np);
+ });
+ // connect nodes of new graph
+ for (const auto &kv : old_new) {
+ for (const NodeEntry& e : kv.first->inputs) {
+ Node *ptr = e.node.get();
+ kv.second->inputs.emplace_back(NodeEntry{old_new[ptr], e.index,
e.version});
+ }
+ for (const NodePtr& p : kv.first->control_deps) {
+ kv.second->control_deps.emplace_back(old_new[p.get()]);
+ }
+ }
+ // set the head
+ for (const NodeEntry &e : src.outputs) {
+ (*dst).outputs.emplace_back(NodeEntry{old_new[e.node.get()], e.index,
e.version});
+ }
+}
+
+inline bool CheckForInputNameDuplicates(const nnvm::IndexedGraph &idx) {
+ std::set<std::string> names;
Review comment:
sure
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
