gain_exchange      28 ompi/mca/topo/treematch/treematch/tm_solution.c double gain_exchange(int *sol,int l,int m,double eval1,int N,double **comm, double **arch);
gain_exchange     422 ompi/mca/topo/treematch/treematch/tm_solution.c       gain[i][j] = gain[j][i] = gain_exchange(sol,i,j,eval1,N,comm,arch);
gain_exchange      20 ompi/mca/topo/treematch/treematch/tm_solution.h double gain_exchange(int *sol,int l,int m,double eval1,int N,double **comm, double **arch);