Fixing bug where apex::dump is called multiple times, the tasktree hi…

…erarchy has a static set that contains a collection of the processed tree nodes. That set needs to be reset each time that the CSV tree writer is called, otherwise subsequent writes will have an empty file.

src/apex/dependency_tree.cpp

@@ -349,9 +349,12 @@ void Node::addAccumulated(double value, double incl, bool is_resume, uint64_t th
     m.unlock();
 }
 
-double Node::writeNodeCSV(std::stringstream& outfile, double total, int node_id, int num_papi_counters) {
+double Node::writeNodeCSV(std::stringstream& outfile, double total, int node_id, int num_papi_counters, bool topLevel) {
     static size_t depth = 0;
     static std::set<std::shared_ptr<Node>> processed;
+    // because dump can get called multiple times during execution, we need
+    // to reset the set of processed nodes.
+    if (topLevel) { processed.clear(); }
     if (processed.count(shared_from_this())) return getAccumulated();
     processed.insert(shared_from_this());
     APEX_ASSERT(total > 0.0);

src/apex/dependency_tree.hpp

@@ -95,7 +95,7 @@ class Node : public std::enable_shared_from_this<Node> {
         std::string getName() const { return data->get_name(); };
         void writeNode(std::ofstream& outfile, double total);
         double writeNodeASCII(std::ofstream& outfile, double total, size_t indent);
-        double writeNodeCSV(std::stringstream& outfile, double total, int node_id, int num_papi_counters);
+        double writeNodeCSV(std::stringstream& outfile, double total, int node_id, int num_papi_counters, bool topLevel = false);
         double writeNodeJSON(std::ofstream& outfile, double total, size_t indent);
         void writeTAUCallpath(std::ofstream& outfile, std::string prefix);
         static size_t getNodeCount() {

src/apex/profiler_listener.cpp

@@ -1217,7 +1217,7 @@ std::unordered_set<profile*> free_profiles;
             header_stream << "\n";
         //}
         stringstream tree_stream;
-        root->tree_node->writeNodeCSV(tree_stream, wall_clock_main, node_id, num_papi_counters);
+        root->tree_node->writeNodeCSV(tree_stream, wall_clock_main, node_id, num_papi_counters, true);
         std::string filename{"apex_tasktree.csv"};
         reduce_profiles(header_stream, tree_stream, filename, false);
     }