MPE_Comm_global_rank
Returns the rank in MPI_COMM_WORLD for a given (communicator,rank) pair 
Synopsis
void MPE_Comm_global_rank( comm, rank, grank )
MPI_Comm comm;
int      rank, *grank;
Input Parameters
- comm 
- Communicator
- rank 
- Rank in comm
Output Parameters
- grank  
-  Rank in comm world
Location:../src/misc/src/getgrank.c