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Bugfix for regional runs when dycore is compiled in double precision #25

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merged 4 commits into from
Jun 29, 2020
Merged

Bugfix for regional runs when dycore is compiled in double precision #25

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a645fcf
model/fv_regional_bc.F90: bugfix, use correct MPI variable type in ex…
climbfuji Jun 24, 2020
b2b0d33
model/fv_regional_bc.F90: allocate bufr1 to bufr4 to required size fo…
climbfuji Jun 25, 2020
2d0479d
model/fv_regional_bc.F90: bugfix, use correct message size
climbfuji Jun 25, 2020
8e64423
model/fv_regional_bc.F90: add comments and a sanity check for buffer …
climbfuji Jun 25, 2020
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26 changes: 21 additions & 5 deletions model/fv_regional_bc.F90
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Original file line number Diff line number Diff line change
Expand Up @@ -3431,6 +3431,7 @@ subroutine remap_scalar_nggps_regional_bc(Atm &
print *, 'clwmr = ', liq_wat
print *, ' o3mr = ', o3mr
print *, 'ncnst = ', ncnst
print *, 'ntracers = ', ntracers
endif

if ( sphum/=1 ) then
Expand Down Expand Up @@ -6483,7 +6484,7 @@ subroutine exch_uv(domain, bd, npz, u, v)
real, intent(inout) :: v (bd%isd:bd%ied+1,bd%jsd:bd%jed ,1:npz)

integer,parameter :: ibufexch=2500000
real,dimension(ibufexch) :: buf1,buf2,buf3,buf4
real, dimension(:), allocatable :: buf1,buf2,buf3,buf4
integer :: ihandle1,ihandle2,ihandle3,ihandle4
integer,dimension(MPI_STATUS_SIZE) :: istat
integer :: ic, i, j, k, is, ie, js, je
Expand All @@ -6508,18 +6509,28 @@ subroutine exch_uv(domain, bd, npz, u, v)
js=bd%js
je=bd%je

allocate(buf1(1:24*npz))
allocate(buf2(1:36*npz))
allocate(buf3(1:36*npz))
allocate(buf4(1:24*npz))

! FIXME: MPI_COMM_WORLD

#ifdef OVERLOAD_R4
#define _DYN_MPI_REAL MPI_REAL
#else
#define _DYN_MPI_REAL MPI_DOUBLE_PRECISION
#endif

! Receive from north
if( north_pe /= NULL_PE )then
call MPI_Irecv(buf1,ibufexch,MPI_REAL,north_pe,north_pe &
call MPI_Irecv(buf1,ibufexch,_DYN_MPI_REAL,north_pe,north_pe &
,MPI_COMM_WORLD,ihandle1,irecv)
endif

! Receive from south
if( south_pe /= NULL_PE )then
call MPI_Irecv(buf2,ibufexch,MPI_REAL,south_pe,south_pe &
call MPI_Irecv(buf2,ibufexch,_DYN_MPI_REAL,south_pe,south_pe &
,MPI_COMM_WORLD,ihandle2,irecv)
endif

Expand Down Expand Up @@ -6551,7 +6562,7 @@ subroutine exch_uv(domain, bd, npz, u, v)
enddo

enddo
call MPI_Issend(buf3,ic,MPI_REAL,north_pe,mype &
call MPI_Issend(buf3,ic,_DYN_MPI_REAL,north_pe,mype &
,MPI_COMM_WORLD,ihandle3,isend)
endif

Expand Down Expand Up @@ -6583,7 +6594,7 @@ subroutine exch_uv(domain, bd, npz, u, v)
enddo

enddo
call MPI_Issend(buf4,ic,MPI_REAL,south_pe,mype &
call MPI_Issend(buf4,ic,_DYN_MPI_REAL,south_pe,mype &
,MPI_COMM_WORLD,ihandle4,isend)
endif

Expand Down Expand Up @@ -6649,6 +6660,11 @@ subroutine exch_uv(domain, bd, npz, u, v)
enddo
endif

deallocate(buf1)
deallocate(buf2)
deallocate(buf3)
deallocate(buf4)

end subroutine exch_uv

!---------------------------------------------------------------------
Expand Down