subroutine test_mesh_dual_w_bilinear(rc)
integer, intent(out) :: rc
logical :: correct
integer :: localrc
type(ESMF_Grid) :: srcGrid
type(ESMF_Grid) :: dstGrid
type(ESMF_Mesh) :: srcMesh, srcMeshDual
type(ESMF_Field) :: srcField
type(ESMF_Field) :: src3DVecField
type(ESMF_Field) :: dst3DVecField
type(ESMF_Field) :: dstField
type(ESMF_Field) :: angleField
type(ESMF_Field) :: magDiffField
type(ESMF_Field) :: tmpField
type(ESMF_Field) :: xdstField
type(ESMF_Array) :: dstArray
type(ESMF_Array) :: dst3DVecArray
type(ESMF_Array) :: srcArray
type(ESMF_Array) :: src3DVecArray
type(ESMF_Array) :: angleArray
type(ESMF_Array) :: magDiffArray
type(ESMF_Array) :: tmpArray
type(ESMF_RouteHandle) :: routeHandle
type(ESMF_ArraySpec) :: arrayspec
type(ESMF_VM) :: vm
real(ESMF_KIND_R8), pointer :: srcFarrayPtr(:)
real(ESMF_KIND_R8), pointer :: farrayPtrXC(:,:)
real(ESMF_KIND_R8), pointer :: farrayPtrYC(:,:)
real(ESMF_KIND_R8), pointer :: farrayPtr1DXC(:)
real(ESMF_KIND_R8), pointer :: farrayPtr1DYC(:)
real(ESMF_KIND_R8), pointer :: farrayPtr(:,:), farrayPtr2(:,:)
real(ESMF_KIND_R8), pointer :: xfarrayPtr(:,:)
real(ESMF_KIND_R8), pointer :: anglefarrayPtr(:,:)
real(ESMF_KIND_R8), pointer :: magDifffarrayPtr(:,:)
real(ESMF_KIND_R8), pointer :: tmpfarrayPtr(:,:)
real(ESMF_KIND_R8), pointer :: dst3DVecfarrayPtr(:,:,:)
real(ESMF_KIND_R8), pointer :: src3DVecfarrayPtr(:,:,:)
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)
character(len=ESMF_MAXSTR) :: string
integer src_nx, src_ny, dst_nx, dst_ny
integer num_arrays
real(ESMF_KIND_R8) :: dx,dy
real(ESMF_KIND_R8) :: src_dx, src_dy
real(ESMF_KIND_R8) :: dst_dx, dst_dy
real(ESMF_KIND_R8) :: lon, lat, lon_rad, lat_rad
real(ESMF_KIND_R8), parameter :: DEG2RAD = 3.141592653589793/180.0_ESMF_KIND_R8
real(ESMF_KIND_R8) :: e_vec(3), n_vec(3)
real(ESMF_KIND_R8) :: regrid_vec(3), exact_vec(3)
real(ESMF_KIND_R8) :: dot,regrid_len,exact_len,angle
real(ESMF_KIND_R8) :: x,y,z, lat_180
real(ESMF_KIND_R8) :: maxErrorLocal(1),maxErrorGlobal(1),error
integer :: numOwnedNodes
real(ESMF_KIND_R8), pointer :: ownedNodeCoords(:)
integer :: localPet, petCount
! result code
integer :: finalrc
! 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
! Src Grid - a cubed sphere grid
srcGrid=ESMF_GridCreateCubedSphere(tileSize=10, &
staggerLocList = (/ESMF_STAGGERLOC_CENTER, ESMF_STAGGERLOC_CORNER/), &
indexflag = ESMF_INDEX_GLOBAL, &
rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Create Mesh
srcMesh=ESMF_MeshCreate(srcGrid, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Free the src Grid
call ESMF_GridDestroy(srcGrid, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Create Dual Mesh
srcMeshDual=ESMF_MeshCreateDual(srcMesh, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Free the original mesh
call ESMF_MeshDestroy(srcMesh, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Src Field
srcField = ESMF_FieldCreate(srcMeshDual, typekind=ESMF_TYPEKIND_R8, &
meshLoc=ESMF_MESHLOC_NODE, name="source", rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Get srcArray from Field
call ESMF_FieldGet(srcField, array=srcArray, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Set interpolated function
call ESMF_MeshGet(srcMeshDual, numOwnedNodes=numOwnedNodes, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Allocate space for coordinates
allocate(ownedNodeCoords(2*numOwnedNodes))
! Set interpolated function
call ESMF_MeshGet(srcMeshDual, ownedNodeCoords=ownedNodeCoords, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Load test data into the source Field
! Should only be 1 localDE
call ESMF_FieldGet(srcField, 0, srcFarrayPtr, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! loop through and set field
do i1=1,numOwnedNodes
! Get coords
lon=ownedNodeCoords(2*i1-1)
lat=ownedNodeCoords(2*i1)
! Set the source to be a function of the x,y,z coordinate
lon_rad = DEG2RAD*(lon)
lat_rad = DEG2RAD*(lat)
! Calc x,y,z coordinate
lat_180 = DEG2RAD*(90.-lat)
x = cos(lon_rad)*sin(lat_180)
y = sin(lon_rad)*sin(lat_180)
z = cos(lat_180)
! Just make src the sum of the coordinates
srcFarrayPtr(i1) = x+y+z
enddo
! Deallocate space for coordinates
deallocate(ownedNodeCoords)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Destination grid
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! setup dest. grid
dstGrid=ESMF_GridCreate1PeriDimUfrm(maxIndex=(/100,50/),&
minCornerCoord=(/0.0_ESMF_KIND_R8,-90.0_ESMF_KIND_R8/), &
maxCornerCoord=(/360.0_ESMF_KIND_R8,90.0_ESMF_KIND_R8/), &
regDecomp=(/1,petCount/), &
staggerLocList=(/ESMF_STAGGERLOC_CENTER/), &
rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Create Fields
dstField = ESMF_FieldCreate(dstGrid, typekind=ESMF_TYPEKIND_R8, &
staggerloc=ESMF_STAGGERLOC_CENTER, name="dest", rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
xdstField = ESMF_FieldCreate(dstGrid, typekind=ESMF_TYPEKIND_R8, &
staggerloc=ESMF_STAGGERLOC_CENTER, name="xdest", rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Get dstArray from Field
call ESMF_FieldGet(dstField, array=dstArray, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Get number of local DEs
call ESMF_GridGet(dstGrid, localDECount=dstlocalDECount, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Get memory and set coords for dst
do lDE=0,dstlocalDECount-1
!! get coords
call ESMF_GridGetCoord(dstGrid, localDE=lDE, staggerLoc=ESMF_STAGGERLOC_CENTER, coordDim=1, &
farrayPtr=farrayPtr1DXC,rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_GridGetCoord(dstGrid, localDE=lDE, staggerLoc=ESMF_STAGGERLOC_CENTER, coordDim=2, &
farrayPtr=farrayPtr1DYC, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_FieldGet(dstField, lDE, farrayPtr, &
computationalLBound=fclbnd, computationalUBound=fcubnd, &
rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_FieldGet(xdstField, lDE, xfarrayPtr, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
!! Set Field value
do i1=fclbnd(1),fcubnd(1)
! Get X coord from Grid
lon = farrayPtr1DXC(i1)
lon_rad = DEG2RAD*(lon)
do i2=fclbnd(2),fcubnd(2)
! Get Y coord from Grid
lat = farrayPtr1DYC(i2)
lat_rad = DEG2RAD*(lat)
! Calc x,y,z coordinate
lat_180 = DEG2RAD*(90.-lat)
x = cos(lon_rad)*sin(lat_180)
y = sin(lon_rad)*sin(lat_180)
z = cos(lat_180)
! initialize destination field
farrayPtr(i1,i2)=0.0
! initialize exact field
xfarrayPtr(i1,i2)=x+y+z
enddo
enddo
enddo ! lDE
#if 0
call ESMF_GridWriteVTK(srcGrid,staggerloc=ESMF_STAGGERLOC_CENTER, &
filename="srcGrid", rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
#endif
!!! Regrid forward from the A grid to the B grid
! Regrid store
call ESMF_FieldRegridStore( &
srcField, &
dstField=dstField, &
routeHandle=routeHandle, &
regridmethod=ESMF_REGRIDMETHOD_BILINEAR, &
rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Do regrid
call ESMF_FieldRegrid(srcField, dstField, routeHandle, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_FieldRegridRelease(routeHandle, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Check results
maxErrorLocal(1)=-1.0
do lDE=0,dstlocalDECount-1
call ESMF_FieldGet(dstField, lDE, farrayPtr, &
computationalLBound=fclbnd, computationalUBound=fcubnd, &
rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_FieldGet(xdstField, lDE, xfarrayPtr, &
rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
!! Loop looking at error
do i1=fclbnd(1),fcubnd(1)
do i2=fclbnd(2),fcubnd(2)
! calc error
error=abs(farrayPtr(i1,i2) - xfarrayPtr(i1,i2))
! calc max error
if (error > maxErrorLocal(1)) maxErrorLocal(1)=error
enddo
enddo
enddo ! lDE
call ESMF_VMAllReduce(vm, maxErrorLocal, maxErrorGlobal, 1, ESMF_REDUCE_MAX, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! If PET 0, report output
! (Turn off by default just to make output smaller)
#if 0
if (localPet == 0) then
write(*,*) "Max error=",maxErrorGlobal(1)
endif
#endif
! Fail if max error too big
if (maxErrorGlobal(1) > 1.0E-2) correct=.false.
! Destroy the Fields
call ESMF_FieldDestroy(srcField, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_FieldDestroy(dstField, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Free the dst Grid
call ESMF_GridDestroy(dstGrid, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Free the srcMeshDual
call ESMF_MeshDestroy(srcMeshDual, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! return answer based on correct flag
if (correct) then
rc=ESMF_SUCCESS
else
rc=ESMF_FAILURE
endif
end subroutine test_mesh_dual_w_bilinear