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jmc |
1.3 |
C $Header: /u/gcmpack/MITgcm/pkg/compon_communic/compsend_r8tiles.F,v 1.2 2007/10/08 23:58:20 jmc Exp $ |
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jmc |
1.2 |
C $Name: $ |
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jmc |
1.1 |
!======================================================================= |
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subroutine compsend_r8tiles( dataname,Ni,Oi,Nj,Oj,Nk,Ti,Tj, arr ) |
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implicit none |
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! Arguments |
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character*(*) dataname |
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integer Ni,Oi,Nj,Oj,Nk,Ti,Tj |
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real*8 arr(1-Oi:Ni+Oi,1-Oj:Nj+Oj,Nk,Ti,Tj) |
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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,datatype,dest,tag,comm,ierr |
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! Functions |
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integer generate_tag |
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! Local |
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integer i,j,ij,bi,bj,k,bibj |
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! ------------------------------------------------------------------ |
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if (HEADER_SIZE+Ni*Nj.gt.MAX_R8_BUFLEN) |
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& stop 'compsend_r8tiles: Nx*Ny too big' |
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! Foreach tile which is non-blank |
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do bibj=1,my_num_tiles |
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bi=my_tile_bi(bibj) |
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bj=my_tile_bj(bibj) |
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if (Ni.ne.my_tile_nx(bibj)) |
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& stop 'compsend_r8tiles: ni != my_tile_nx' |
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if (Nj.ne.my_tile_ny(bibj)) |
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& stop 'compsend_r8tiles: nj != my_tile_ny' |
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! Set up buffer |
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r8buf(1)=float( my_tile_i0(bibj) ) |
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r8buf(2)=float( my_tile_nx(bibj) ) |
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r8buf(3)=float( my_tile_j0(bibj) ) |
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r8buf(4)=float( my_tile_ny(bibj) ) |
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jmc |
1.3 |
call mitcplr_char2dbl( dataname, r8buf(9) ) |
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jmc |
1.1 |
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! Copy interior of tile to buffer |
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k=1 |
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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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r8buf(ij)=arr(i,j,k,bi,bj) |
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enddo |
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enddo |
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! Send message |
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count=HEADER_SIZE+Ni*Nj |
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datatype=MPI_DOUBLE_PRECISION |
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dest=my_coupler_rank |
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tag=generate_tag(103,bibj,dataname) |
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comm=MPI_COMM_myglobal |
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if (VERB) then |
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write(LogUnit,*) |
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& 'compsend_r8tiles: calling MPI_Send dest=',dest,' tile=',bibj |
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write(LogUnit,*) 'compsend_r8tiles: dataname=',dataname |
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call flush(LogUnit) |
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endif |
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call MPI_Send( r8buf, count, datatype, dest, tag, comm, ierr ) |
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if (VERB) then |
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write(LogUnit,*) 'compsend_r8tiles: returned ierr=',ierr |
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call flush(LogUnit) |
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endif |
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if (ierr.ne.0) then |
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write(LogUnit,*) 'compsend_r8tiles: rank(W,G,L)=', |
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& my_rank_in_world,my_rank_in_global,my_rank_in_local, |
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& ' ierr=',ierr |
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stop 'compsend_r8tiles: MPI_Send failed' |
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endif |
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enddo ! bibj |
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! ------------------------------------------------------------------ |
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return |
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end |
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!======================================================================= |
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