This display shows callpath data in a gprof style
view. Each function is shown with its immediate parents. For example,
Figure 12.7, “Thread Call Path Relations Window” shows that
MPI_Recv() is call from two places for a total of
9.052 seconds. Most of that time comes from the 30
calls when MPI_Recv() is called by
MPIScheduler::postMPIRecvs(). The other 60 calls do
not amount to much time.