/[MITgcm]/MITgcm/pkg/compon_communic/compsend_r8tiles.F
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Revision 1.2 - (show annotations) (download)
Mon Oct 8 23:58:20 2007 UTC (16 years, 8 months ago) by jmc
Branch: MAIN
CVS Tags: checkpoint60, checkpoint61, checkpoint59q, checkpoint59p, checkpoint59r, checkpoint59m, checkpoint59l, checkpoint59o, checkpoint59n, checkpoint59i, checkpoint59k, checkpoint59j, checkpoint61f, checkpoint61g, checkpoint61d, checkpoint61e, checkpoint61b, checkpoint61c, checkpoint61a, checkpoint61n, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61q
Changes since 1.1: +3 -0 lines
add missing cvs $Header:$ or $Name:$

1 C $Header: $
2 C $Name: $
3
4 !=======================================================================
5 subroutine compsend_r8tiles( dataname,Ni,Oi,Nj,Oj,Nk,Ti,Tj, arr )
6 implicit none
7 ! Arguments
8 character*(*) dataname
9 integer Ni,Oi,Nj,Oj,Nk,Ti,Tj
10 real*8 arr(1-Oi:Ni+Oi,1-Oj:Nj+Oj,Nk,Ti,Tj)
11 ! Predefined constants/arrays
12 #include "CPLR_SIG.h"
13 ! MPI variables
14 #include "mpif.h"
15 integer count,datatype,dest,tag,comm,ierr
16 ! Functions
17 integer generate_tag
18 ! Local
19 integer i,j,ij,bi,bj,k,bibj
20 ! ------------------------------------------------------------------
21
22 if (HEADER_SIZE+Ni*Nj.gt.MAX_R8_BUFLEN)
23 & stop 'compsend_r8tiles: Nx*Ny too big'
24
25 ! Foreach tile which is non-blank
26 do bibj=1,my_num_tiles
27
28 bi=my_tile_bi(bibj)
29 bj=my_tile_bj(bibj)
30
31 if (Ni.ne.my_tile_nx(bibj))
32 & stop 'compsend_r8tiles: ni != my_tile_nx'
33 if (Nj.ne.my_tile_ny(bibj))
34 & stop 'compsend_r8tiles: nj != my_tile_ny'
35
36 ! Set up buffer
37 r8buf(1)=float( my_tile_i0(bibj) )
38 r8buf(2)=float( my_tile_nx(bibj) )
39 r8buf(3)=float( my_tile_j0(bibj) )
40 r8buf(4)=float( my_tile_ny(bibj) )
41 call mitcplr_char2real( dataname, r8buf(9) )
42
43 ! Copy interior of tile to buffer
44 k=1
45 do j=1,Nj
46 do i=1,Ni
47 ij=HEADER_SIZE+i+Ni*(j-1)
48 r8buf(ij)=arr(i,j,k,bi,bj)
49 enddo
50 enddo
51
52 ! Send message
53 count=HEADER_SIZE+Ni*Nj
54 datatype=MPI_DOUBLE_PRECISION
55 dest=my_coupler_rank
56 tag=generate_tag(103,bibj,dataname)
57 comm=MPI_COMM_myglobal
58
59 if (VERB) then
60 write(LogUnit,*)
61 & 'compsend_r8tiles: calling MPI_Send dest=',dest,' tile=',bibj
62 write(LogUnit,*) 'compsend_r8tiles: dataname=',dataname
63 call flush(LogUnit)
64 endif
65 call MPI_Send( r8buf, count, datatype, dest, tag, comm, ierr )
66 if (VERB) then
67 write(LogUnit,*) 'compsend_r8tiles: returned ierr=',ierr
68 call flush(LogUnit)
69 endif
70
71 if (ierr.ne.0) then
72 write(LogUnit,*) 'compsend_r8tiles: rank(W,G,L)=',
73 & my_rank_in_world,my_rank_in_global,my_rank_in_local,
74 & ' ierr=',ierr
75 stop 'compsend_r8tiles: MPI_Send failed'
76 endif
77
78 enddo ! bibj
79
80 ! ------------------------------------------------------------------
81 return
82 end
83 !=======================================================================

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