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C $Header: /u/gcmpack/MITgcm/pkg/compon_communic/couprecv_r8.F,v 1.2 2007/10/08 23:58:20 jmc Exp $ |
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C $Name: $ |
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|
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!======================================================================= |
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subroutine couprecv_r8( component, dataname, Nx, Ny, arr ) |
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implicit none |
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! Arguments |
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character*(*) component |
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character*(*) dataname |
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integer Nx,Ny |
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real*8 arr(Nx,Ny) |
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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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integer count,dtype,rank,tag,comm,ierr |
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integer stat(MPI_STATUS_SIZE) |
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! Functions |
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integer mitcplr_match_comp |
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integer generate_tag |
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! Local |
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integer compind,numprocs |
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integer i,j,ij,n |
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integer Ni,Io,Nj,Jo |
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character*(MAXLEN_COMP_NAME) recvdname |
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! ------------------------------------------------------------------ |
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|
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! Establish who I am communicating with |
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compind=mitcplr_match_comp( component ) |
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if (compind.le.0) stop 'couprecv_r8: Bad component id' |
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comm=MPI_COMM_compcplr( compind ) |
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numprocs=num_component_procs(compind) |
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if (numprocs.lt.1) then |
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write(LogUnit,*) 'couprecv_r8: compind = ',compind |
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stop 'couprecv_r8: numprocs < 1' |
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endif |
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if (VERB) |
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& write(LogUnit,*) 'couprecv_r8: ',component_Name(compind) |
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if (VERB) |
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& write(LogUnit,*) 'couprecv_r8: dataname=',dataname |
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|
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! Foreach component process |
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do n=1,numprocs |
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|
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! Receive message |
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count=HEADER_SIZE+MAX_R8_BUFLEN |
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dtype=MPI_DOUBLE_PRECISION |
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tag=generate_tag(102,n,dataname) |
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rank=rank_component_procs(n,compind) |
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if (VERB) then |
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write(LogUnit,*) 'couprecv_r8: calling MPI_Recv rank=',rank, |
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& ' proc=',n,'/',numprocs |
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call flush(LogUnit) |
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endif |
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call MPI_Recv(r8buf, count, dtype, rank, tag, comm, stat, ierr) |
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if (VERB) then |
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write(LogUnit,*) 'couprecv_r8: returned ierr=',ierr |
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call flush(LogUnit) |
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endif |
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|
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if (ierr.ne.0) then |
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write(LogUnit,*) 'couprecv_r8tiles: rank(W,G)=', |
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& my_rank_in_world,my_rank_in_global, |
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& ' ierr=',ierr |
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stop 'couprecv_r8: MPI_Recv failed' |
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endif |
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|
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! Extract header |
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Io=int(0.5+r8buf(1)) |
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Ni=int(0.5+r8buf(2)) |
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Jo=int(0.5+r8buf(3)) |
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Nj=int(0.5+r8buf(4)) |
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|
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if (Io+Ni-1.gt.Nx .or. Io.lt.1) then |
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write(LogUnit,*) 'couprecv_r8tiles: Io,Ni=',Io,Ni |
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stop 'couprecv_r8: Incompatible header/target array' |
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endif |
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if (Jo+Nj-1.gt.Ny .or. Jo.lt.1) then |
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write(LogUnit,*) 'couprecv_r8tiles: Jo,Nj=',Jo,Nj |
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stop 'couprecv_r8: Incompatible header/target array' |
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endif |
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|
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call mitcplr_dbl2char( r8buf(9), recvdname ) |
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if (recvdname .ne. dataname) then |
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write(LogUnit,*) 'couprecv_r8: recvdname = ',recvdname |
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write(LogUnit,*) 'couprecv_r8: dataname = ',dataname |
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stop 'couprecv_r8: recvdname != dataname' |
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endif |
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|
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! Extract data |
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do j=1,Nj |
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do i=1,Ni |
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ij=HEADER_SIZE+i+Ni*(j-1) |
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arr(Io+i-1,Jo+j-1)=r8buf(ij) |
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enddo |
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enddo |
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|
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enddo |
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|
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! ------------------------------------------------------------------ |
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return |
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end |
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!======================================================================= |
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