subroutine test_bilinear_regrid_csgrid_sph_rad(rc)
#undef ESMF_METHOD
#define ESMF_METHOD "test_bilinear_regrid_csgrid_sph_rad"
integer, intent(out) :: rc
logical :: correct
integer :: localrc
type(ESMF_Grid) :: srcGrid
type(ESMF_Grid) :: dstGrid
type(ESMF_Field) :: srcField
type(ESMF_Field) :: dstField
type(ESMF_Field) :: xdstField
type(ESMF_Field) :: errField
type(ESMF_Array) :: dstArray
type(ESMF_Array) :: errArray
type(ESMF_Array) :: srcArray
type(ESMF_RouteHandle) :: routeHandle
type(ESMF_VM) :: vm
real(ESMF_KIND_R8), pointer :: farrayPtrXC(:,:)
real(ESMF_KIND_R8), pointer :: farrayPtrYC(:,:)
real(ESMF_KIND_R8), pointer :: farrayPtr(:,:), farrayPtr2(:,:)
real(ESMF_KIND_R8), pointer :: xfarrayPtr(:,:)
real(ESMF_KIND_R8), pointer :: errfarrayPtr(:,:)
integer :: clbnd(2),cubnd(2)
integer :: fclbnd(2),fcubnd(2)
integer :: i1,i2,i3, index(2)
integer :: lDE, srclocalDECount, dstlocalDECount
real(ESMF_KIND_R8) :: coord(2),x,y,z
character(len=ESMF_MAXSTR) :: string
integer src_tile_size, dst_nx, dst_ny
real(ESMF_KIND_R8) :: lon, lat, theta, phi, relErr
real(ESMF_KIND_R8) :: coords(2), maxRelErr
real(ESMF_KIND_R4) :: coordsR4(2)
integer :: localPet, petCount
real(ESMF_KIND_R8), parameter :: DEG2RAD = &
3.141592653589793_ESMF_KIND_R8/180.0_ESMF_KIND_R8
integer :: decomptile(2,6)
! init success flag
correct=.true.
rc=ESMF_SUCCESS
! get pet info
call ESMF_VMGetGlobal(vm, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_VMGet(vm, petCount=petCount, localPet=localpet, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Establish the resolution of the grids
src_tile_size=20
dst_nx = 47
dst_ny = 47
! Set up decomposition for src Grid
decomptile(:,1)=(/2,2/)
decomptile(:,2)=(/2,2/)
decomptile(:,3)=(/2,2/)
decomptile(:,4)=(/2,2/)
decomptile(:,5)=(/2,2/)
decomptile(:,6)=(/2,2/)
! Create Src Grid
srcGrid=ESMF_GridCreateCubedSphere(tileSize=src_tile_size, &
regDecompPTile=decomptile, &
staggerLocList = (/ESMF_STAGGERLOC_CORNER, ESMF_STAGGERLOC_CENTER/), &
indexflag = ESMF_INDEX_GLOBAL, &
coordSys = ESMF_COORDSYS_SPH_RAD, &
coordTypeKind = ESMF_TYPEKIND_R4, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Create Dst Grid
dstGrid=ESMF_GridCreate1PeriDimUfrm(maxIndex=(/dst_nx,dst_ny/), &
minCornerCoord=(/0.0_ESMF_KIND_R8*ESMF_COORDSYS_DEG2RAD,-90.0_ESMF_KIND_R8*ESMF_COORDSYS_DEG2RAD/), &
maxCornerCoord=(/360.0_ESMF_KIND_R8*ESMF_COORDSYS_DEG2RAD,90.0_ESMF_KIND_R8*ESMF_COORDSYS_DEG2RAD/), &
staggerLocList=(/ESMF_STAGGERLOC_CENTER/), &
coordSys = ESMF_COORDSYS_SPH_RAD, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Create source/destination fields
srcField = ESMF_FieldCreate(srcGrid, typekind=ESMF_TYPEKIND_R8, &
staggerloc=ESMF_STAGGERLOC_CENTER, name="source", rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
dstField = ESMF_FieldCreate(dstGrid, typekind=ESMF_TYPEKIND_R8, &
staggerloc=ESMF_STAGGERLOC_CENTER, name="dest", rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
xdstField = ESMF_FieldCreate(dstGrid, typekind=ESMF_TYPEKIND_R8, &
staggerloc=ESMF_STAGGERLOC_CENTER, name="xdest", rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
errField = ESMF_FieldCreate(dstGrid, typekind=ESMF_TYPEKIND_R8, &
staggerloc=ESMF_STAGGERLOC_CENTER, name="xdest", rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Get arrays
! dstArray
call ESMF_FieldGet(dstField, array=dstArray, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_FieldGet(errField, array=errArray, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! srcArray
call ESMF_FieldGet(srcField, array=srcArray, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Get number of local DEs
call ESMF_GridGet(srcGrid, localDECount=srclocalDECount, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Get number of local DEs
call ESMF_GridGet(dstGrid, localDECount=dstlocalDECount, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Construct Src Grid
! (Get memory and set coords for src)
do lDE=0,srclocalDECount-1
! get src pointer
call ESMF_FieldGet(srcField, lDE, farrayPtr, &
computationalLBound=clbnd, computationalUBound=cubnd, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
!! set coords, interpolated function
do i1=clbnd(1),cubnd(1)
do i2=clbnd(2),cubnd(2)
! Get coords
call ESMF_GridGetCoord(srcGrid, staggerloc=ESMF_STAGGERLOC_CENTER, &
localDE=lDE, index=(/i1,i2/), coord=coordsR4, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! init exact answer
theta = coordsR4(1)
phi = 90.0_ESMF_KIND_R4*ESMF_COORDSYS_DEG2RAD-coordsR4(2)
x = cos(theta)*sin(phi)
y = sin(theta)*sin(phi)
z = cos(phi)
! set src data
farrayPtr(i1,i2) = x+y+z+15.0
! This one seems to do a weird thing around the pole with a cubed sphere
! farrayPtr(i1,i2) = 2. + cos(theta)**2.*cos(2.*phi)
enddo
enddo
enddo ! lDE
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Destination grid
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Get memory and set coords for dst
do lDE=0,dstlocalDECount-1
! get dst pointer
call ESMF_FieldGet(dstField, lDE, farrayPtr, &
computationalLBound=clbnd, computationalUBound=cubnd, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Get exact dst pointer
call ESMF_FieldGet(xdstField, lDE, xfarrayPtr, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
!! dst data
do i1=clbnd(1),cubnd(1)
do i2=clbnd(2),cubnd(2)
! Get coords
call ESMF_GridGetCoord(dstGrid, staggerloc=ESMF_STAGGERLOC_CENTER, &
localDE=lDE, index=(/i1,i2/), coord=coords, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! init exact answer
theta = coords(1)
phi = 90.0_ESMF_KIND_R8*ESMF_COORDSYS_DEG2RAD-coords(2)
! Set the source to be a function of the x,y,z coordinate
x = cos(theta)*sin(phi)
y = sin(theta)*sin(phi)
z = cos(phi)
! farrayPtr(i1,i2) = 2. + cos(theta)**2.*cos(2.*phi)
! set exact dst data
xfarrayPtr(i1,i2) = x+y+z+15.0
! This one seems to do a weird thing around the pole with a cubed sphere
!xfarrayPtr(i1,i2) = 2. + cos(theta)**2.*cos(2.*phi)
! initialize destination field
farrayPtr(i1,i2)=0.0
enddo
enddo
enddo ! lDE
#if 0
call ESMF_GridWriteVTK(srcGrid,staggerloc=ESMF_STAGGERLOC_CENTER, &
filename="srcGrid", rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
#endif
!!! Regrid forward from the A grid to the B grid
! Regrid store
call ESMF_FieldRegridStore( &
srcField, &
dstField=dstField, &
routeHandle=routeHandle, &
unmappedAction=ESMF_UNMAPPEDACTION_ERROR, &
regridmethod=ESMF_REGRIDMETHOD_BILINEAR, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Do regrid
call ESMF_FieldRegrid(srcField, dstField, routeHandle, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_FieldRegridRelease(routeHandle, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Check results
maxRelErr=0.0
do lDE=0,dstlocalDECount-1
call ESMF_FieldGet(dstField, lDE, farrayPtr, computationalLBound=clbnd, &
computationalUBound=cubnd, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_FieldGet(xdstField, lDE, xfarrayPtr, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_FieldGet(errField, lDE, errfarrayPtr, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
!! make sure we're not using any bad points
do i1=clbnd(1),cubnd(1)
do i2=clbnd(2),cubnd(2)
! Compute relative error
if (xfarrayPtr(i1,i2) .ne. 0.0) then
relErr=abs((farrayPtr(i1,i2)-xfarrayPtr(i1,i2))/xfarrayPtr(i1,i2))
else
relErr=abs(farrayPtr(i1,i2)-xfarrayPtr(i1,i2))
endif
! if working everything should be close to exact answer
if (relErr .gt. 0.001) then
correct=.false.
write(*,*) "relErr=",relErr,farrayPtr(i1,i2),xfarrayPtr(i1,i2)
endif
! Calc max
if (relErr > maxRelErr) then
maxRelErr=relErr
endif
! put in error field
errfarrayPtr(i1,i2)=relErr
enddo
enddo
enddo ! lDE
! output maxRelErr
!write(*,*) "maxRelErr=",maxRelErr
#if 0
call ESMF_GridWriteVTK(srcGrid,staggerloc=ESMF_STAGGERLOC_CENTER, &
filename="srcGrid", array1=srcArray, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_GridWriteVTK(dstGrid,staggerloc=ESMF_STAGGERLOC_CENTER, &
filename="dstGrid", array1=dstArray, array2=errArray, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
#endif
! Destroy the Fields
call ESMF_FieldDestroy(srcField, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_FieldDestroy(dstField, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_FieldDestroy(xdstField, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_FieldDestroy(errField, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Free the grids
call ESMF_GridDestroy(srcGrid, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
call ESMF_GridDestroy(dstGrid, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! return answer based on correct flag
if (correct) then
rc=ESMF_SUCCESS
else
rc=ESMF_FAILURE
endif
end subroutine test_bilinear_regrid_csgrid_sph_rad