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C $Header: /u/gcmpack/MITgcm/pkg/compon_communic/mitcplr_init2b.F,v 1.2 2007/10/08 23:58:21 jmc Exp $ |
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C $Name: $ |
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|
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!======================================================================= |
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subroutine mitcplr_init2b( myTypeStr ) |
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|
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implicit none |
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! Predefined constants/arrays |
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#include "CPLR_SIG.h" |
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! MPI variables |
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#include "mpif.h" |
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|
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! Arguments |
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character*(*) myTypeStr |
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! Local |
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integer myid, numprocs, ierr |
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integer MPI_COMM_temp |
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integer n,j,lenbuf,compind |
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integer ibuf(MAX_IBUF) |
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! ------------------------------------------------------------------ |
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|
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! Foreach component type |
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do compind = 1,num_components |
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|
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MPI_COMM_temp=MPI_COMM_compcplr(compind) |
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|
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! Find-out my position (rank) in the "global" communicator |
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call MPI_COMM_RANK( MPI_COMM_temp, myid, ierr ) |
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if (ierr.ne.0) write(LogUnit,*) 'MITCPLR_init2b: ', |
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& ' Rank = ',myid,' MPI_COMM_RANK ierr=',ierr |
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! How big is the "global" comminicator? |
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call MPI_COMM_SIZE( MPI_COMM_temp, numprocs, ierr ) |
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if (ierr.ne.0) write(LogUnit,*) 'MITCPLR_init2b: ', |
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& ' Size = ',numprocs,' MPI_COMM_RANK ierr=',ierr |
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if (DEBUG) write(LogUnit,*) 'MITCPLR_init2b: ', |
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& ' Rank/Size = ',myid,' /',numprocs |
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|
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! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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|
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! Assume nothing again |
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num_coupler_procs=0 |
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num_component_procs(compind)=0 |
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num_compcplr_procs(compind)=0 |
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|
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! Receive a message from each of the other processes in "myglobal" |
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do n=0,numprocs-1 |
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ibuf( 1)=myid |
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ibuf( 2)=MITCPLR_COUPLER |
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ibuf( 3)=0 |
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ibuf( 4)=0 |
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ibuf( 5)=0 |
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ibuf( 6)=0 |
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ibuf( 7)=0 |
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ibuf( 8)=0 |
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ibuf( 9)=0 |
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ibuf(10)=0 |
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ibuf(11)=0 |
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ibuf(12)=0 |
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lenbuf=12 |
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call MPI_Bcast( |
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& ibuf, lenbuf, MPI_INTEGER, |
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& n, |
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& MPI_COMM_temp, ierr ) |
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if (ierr.ne.0) write(LogUnit,*) 'MITCPLR_init2b: ', |
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& ' MPI_Bcast from ',ibuf(1),ibuf(2),' ierr=',ierr |
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|
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if ( ibuf(2).eq.MITCPLR_COUPLER ) then |
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! If the broadcaster is the "coupler" |
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num_coupler_procs=num_coupler_procs + 1 |
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rank_coupler_procs(num_coupler_procs) = ibuf(1) |
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num_compcplr_procs(compind)=num_compcplr_procs(compind) + 1 |
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j=num_compcplr_procs(compind) |
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rank_compcplr_procs(j,compind)=ibuf(1) |
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else |
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! If the broadcaster is a "component" |
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num_component_procs(compind)=num_component_procs(compind) + 1 |
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j=num_component_procs(compind) |
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rank_component_procs(j,compind)=ibuf(1) |
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num_compcplr_procs(compind)=num_compcplr_procs(compind) + 1 |
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j=num_compcplr_procs(compind) |
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rank_compcplr_procs(j,compind)=ibuf(1) |
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endif |
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|
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enddo |
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|
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if (num_coupler_procs .ne. 1) then |
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STOP 'MITCPLR_init2b: I can only handle one coupling process' |
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endif |
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|
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enddo |
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|
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! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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|
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do compind = 1,num_components |
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write(LogUnit,*) 'MITCPLR_init2b: ', |
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& MPI_COMM_compcplr(compind), |
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& ' comp. ranks = ',(rank_component_procs(j,compind), |
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& j=1,num_component_procs(compind) ) |
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write(LogUnit,*) 'MITCPLR_init2b: ', |
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& MPI_COMM_compcplr(compind), |
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& ' c+c ranks = ',(rank_compcplr_procs(j,compind), |
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& j=1,num_compcplr_procs(compind) ) |
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enddo |
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|
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! ------------------------------------------------------------------ |
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call flush(LogUnit) |
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return |
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end |
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!======================================================================= |
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