+ map<string, int> getRootForGroups(Tree* t);
+ int readNamesFile();
+ void printData(set<int>&, map< string, vector<float> >&, ofstream&, int);
+ void printSumData(map< string, vector<float> >&, ofstream&, int);
+ vector<float> calcBranchLength(Tree*, int, vector< map<string, bool> >&, map<string, int>);
+ int driver(Tree*, map< string, vector<float> >&, map<string, vector<float> >&, int, int, vector<int>&, set<int>&, ofstream&, ofstream&, bool);
+ int createProcesses(vector<int>&, Tree*, map< string, vector<float> >&, map<string, vector<float> >&, int, int, vector<int>&, set<int>&, ofstream&, ofstream&);
+