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bugfix in parallel #82

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bugfix in parallel #82

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6d20247
Fix wrong type bug in parallel
hgoelzer May 16, 2026
f52f731
completing the bug fix
hgoelzer May 16, 2026
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16 changes: 8 additions & 8 deletions libglimmer/parallel_mpi.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -6737,30 +6737,30 @@ subroutine parallel_halo_integer_3d(a, parallel)
endif

! unstaggered grid
call mpi_irecv(wrecv,size(wrecv),mpi_real8,west,west,&
call mpi_irecv(wrecv,size(wrecv),mpi_integer,west,west,&
comm,wrequest,ierror)
call mpi_irecv(erecv,size(erecv),mpi_real8,east,east,&
call mpi_irecv(erecv,size(erecv),mpi_integer,east,east,&
comm,erequest,ierror)
call mpi_irecv(srecv,size(srecv),mpi_real8,south,south,&
call mpi_irecv(srecv,size(srecv),mpi_integer,south,south,&
comm,srequest,ierror)
call mpi_irecv(nrecv,size(nrecv),mpi_real8,north,north,&
call mpi_irecv(nrecv,size(nrecv),mpi_integer,north,north,&
comm,nrequest,ierror)

esend(:,:,:) = &
a(:,local_ewn-uhalo-lhalo+1:local_ewn-uhalo,1+lhalo:local_nsn-uhalo)
call mpi_send(esend,size(esend),mpi_real8,east,this_rank,comm,ierror)
call mpi_send(esend,size(esend),mpi_integer,east,this_rank,comm,ierror)
wsend(:,:,:) = a(:,1+lhalo:1+lhalo+uhalo-1,1+lhalo:local_nsn-uhalo)
call mpi_send(wsend,size(wsend),mpi_real8,west,this_rank,comm,ierror)
call mpi_send(wsend,size(wsend),mpi_integer,west,this_rank,comm,ierror)

call mpi_wait(wrequest,mpi_status_ignore,ierror)
a(:,:lhalo,1+lhalo:local_nsn-uhalo) = wrecv(:,:,:)
call mpi_wait(erequest,mpi_status_ignore,ierror)
a(:,local_ewn-uhalo+1:,1+lhalo:local_nsn-uhalo) = erecv(:,:,:)

nsend(:,:,:) = a(:,:,local_nsn-uhalo-lhalo+1:local_nsn-uhalo)
call mpi_send(nsend,size(nsend),mpi_real8,north,this_rank,comm,ierror)
call mpi_send(nsend,size(nsend),mpi_integer,north,this_rank,comm,ierror)
ssend(:,:,:) = a(:,:,1+lhalo:1+lhalo+uhalo-1)
call mpi_send(ssend,size(ssend),mpi_real8,south,this_rank,comm,ierror)
call mpi_send(ssend,size(ssend),mpi_integer,south,this_rank,comm,ierror)

call mpi_wait(srequest,mpi_status_ignore,ierror)
a(:,:,:lhalo) = srecv(:,:,:)
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