subroutine test_regrid_w_gtom(rc)
integer, intent(out) :: rc
integer :: localrc
type(ESMF_Mesh) :: srcMesh
type(ESMF_Mesh) :: dstMesh
type(ESMF_Grid) :: srcGrid
type(ESMF_Grid) :: dstGrid
type(ESMF_Field) :: srcField
type(ESMF_Field) :: dstField
type(ESMF_Field) :: xdstField
type(ESMF_Field) :: srcAreaField, dstAreaField
type(ESMF_Field) :: srcFracField, dstFracField
type(ESMF_RouteHandle) :: routeHandle
type(ESMF_ArraySpec) :: arrayspec
type(ESMF_VM) :: vm
real(ESMF_KIND_R8), pointer :: srcFarrayPtr(:), dstFarrayPtr(:), xdstFarrayPtr(:)
real(ESMF_KIND_R8), pointer :: srcAreaPtr(:), dstAreaPtr(:)
real(ESMF_KIND_R8), pointer :: srcFracPtr(:), dstFracPtr(:)
integer :: clbnd(1),cubnd(1)
integer :: i1,i2,i3
real(ESMF_KIND_R8) :: x,y,z
real(ESMF_KIND_R8) :: lat, lon, phi, theta
real(ESMF_KIND_R8),parameter :: &
DEG2RAD = 3.141592653589793_ESMF_KIND_R8/180.0_ESMF_KIND_R8
integer :: localPet, petCount
real(ESMF_KIND_R8) :: srcmass(1), dstmass(1), srcmassg(1), dstmassg(1)
real(ESMF_KIND_R8) :: maxerror(1), minerror(1), error
real(ESMF_KIND_R8) :: maxerrorg(1), minerrorg(1), errorg
real(ESMF_KIND_R8) :: errorTot, errorTotG
integer, pointer :: nodeIds(:),nodeOwners(:)
real(ESMF_KIND_R8), pointer :: nodeCoords(:)
integer, pointer :: elemIds(:),elemTypes(:),elemConn(:),elemMask(:)
integer :: numNodes
integer :: iconn,inode
integer :: numQuadElems,numTriElems
integer :: numPentElems,numHexElems,numTotElems
integer :: numElemConn
integer :: numOwnedElems
real(ESMF_KIND_R8), pointer :: ownedElemCoords(:)
! result code
integer :: finalrc
! Init to success
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
! If we don't have 1 or 4 PETS then exit successfully
if ((petCount .ne. 1) .and. (petCount .ne. 4)) then
rc=ESMF_SUCCESS
return
endif
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!! Setup Source !!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Create Source Grid
srcGrid=ESMF_GridCreate1PeriDimUfrm(maxIndex=(/80,80/), &
minCornerCoord=(/0.0_ESMF_KIND_R8,-85.0_ESMF_KIND_R8/), &
maxCornerCoord=(/360.0_ESMF_KIND_R8,85.0_ESMF_KIND_R8/), &
staggerLocList=(/ESMF_STAGGERLOC_CENTER,ESMF_STAGGERLOC_CORNER/), &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Create Mesh from Source
srcMesh=ESMF_MeshCreate(srcGrid, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Array spec for fields
call ESMF_ArraySpecSet(arrayspec, 1, ESMF_TYPEKIND_R8, rc=rc)
! Create source field
srcField = ESMF_FieldCreate(srcMesh, arrayspec, meshloc=ESMF_MESHLOC_ELEMENT, &
name="source", rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Load test data into the source Field
! Should only be 1 localDE
call ESMF_FieldGet(srcField, 0, srcFarrayPtr, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Set interpolated function
call ESMF_MeshGet(srcMesh, numOwnedElements=numOwnedElems, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Allocate space for coordinates
allocate(ownedElemCoords(2*numOwnedElems))
! Set interpolated function
call ESMF_MeshGet(srcMesh, ownedElemCoords=ownedElemCoords, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! loop through and set field
do i1=1,numOwnedElems
! Get coords
lon=ownedElemCoords(2*i1-1)
lat=ownedElemCoords(2*i1)
! Set source function
theta = DEG2RAD*(lon)
phi = DEG2RAD*(90.-lat)
x = cos(theta)*sin(phi)
y = sin(theta)*sin(phi)
z = cos(phi)
srcFarrayPtr(i1) = x+y+z+2.0
!srcFarrayPtr(i1) = 1.0
enddo
! Deallocate space for coordinates
deallocate(ownedElemCoords)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!! Setup Destination !!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
! Create Dst Grid
dstGrid=ESMF_GridCreate1PeriDimUfrm(maxIndex=(/10,10/), &
minCornerCoord=(/0.0_ESMF_KIND_R8,-80.0_ESMF_KIND_R8/), &
maxCornerCoord=(/360.0_ESMF_KIND_R8,80.0_ESMF_KIND_R8/), &
staggerLocList=(/ESMF_STAGGERLOC_CENTER,ESMF_STAGGERLOC_CORNER/), &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Create Mesh from Source
dstMesh=ESMF_MeshCreate(dstGrid, rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Array spec
call ESMF_ArraySpecSet(arrayspec, 1, ESMF_TYPEKIND_R8, rc=rc)
! Create dest. field
dstField = ESMF_FieldCreate(dstMesh, arrayspec, meshloc=ESMF_MESHLOC_ELEMENT, &
name="dest", rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Create exact dest. field
xdstField = ESMF_FieldCreate(dstMesh, arrayspec, meshloc=ESMF_MESHLOC_ELEMENT, &
name="xdest", rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Init destination field to 0.0
! Should only be 1 localDE
call ESMF_FieldGet(dstField, 0, dstFarrayPtr, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Init destination field to 0.0
dstFarrayPtr=0.0
! Init exact destination field
! Should only be 1 localDE
call ESMF_FieldGet(xdstField, 0, xdstFarrayPtr, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Set number of points in destination mesh
call ESMF_MeshGet(dstMesh, numOwnedElements=numOwnedElems, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! Allocate space for coordinates
allocate(ownedElemCoords(2*numOwnedElems))
! Set exact destination field
call ESMF_MeshGet(dstMesh, ownedElemCoords=ownedElemCoords, &
rc=localrc)
if (ESMF_LogFoundError(localrc, &
ESMF_ERR_PASSTHRU, &
ESMF_CONTEXT, rcToReturn=rc)) return
! loop through and set xfield
do i1=1,numOwnedElems
! Get coords
lon=ownedElemCoords(2*i1-1)
lat=ownedElemCoords(2*i1)
! Set exact dest function
theta = DEG2RAD*(lon)
phi = DEG2RAD*(90.-lat)
x = cos(theta)*sin(phi)
y = sin(theta)*sin(phi)
z = cos(phi)
xdstFarrayPtr(i1) = x+y+z+2.0
!xdstFarrayPtr(i1) = 1.0
enddo
! Deallocate space for coordinates
deallocate(ownedElemCoords)
#if 0
call ESMF_MeshWrite(srcMesh,"srcMesh")
call ESMF_MeshWrite(dstMesh,"dstMesh")
#endif
! Regrid store
call ESMF_FieldRegridStore( &
srcField, &
dstField=dstField, &
routeHandle=routeHandle, &
regridmethod=ESMF_REGRIDMETHOD_BILINEAR, &
unmappedaction=ESMF_UNMAPPEDACTION_ERROR, &
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 if the values are close
minerror(1) = 100000.
maxerror(1) = 0.
error = 0.
errorTot=0.0
dstmass = 0.
! get dst Field
call ESMF_FieldGet(dstField, 0, dstFarrayPtr, computationalLBound=clbnd, &
computationalUBound=cubnd, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! get exact destination Field
call ESMF_FieldGet(xdstField, 0, xdstFarrayPtr, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! destination grid
!! check relative error
do i1=clbnd(1),cubnd(1)
if (xdstFarrayPtr(i1) .ne. 0.0) then
error=ABS(dstFarrayPtr(i1) - xdstFarrayPtr(i1))/ABS(xdstFarrayPtr(i1))
else
error=ABS(dstFarrayPtr(i1) - xdstFarrayPtr(i1))
endif
errorTot=errorTot+error
if (error > maxerror(1)) then
maxerror(1) = error
endif
if (error < minerror(1)) then
minerror(1) = error
endif
enddo
call ESMF_VMAllReduce(vm, maxerror, maxerrorg, 1, ESMF_REDUCE_MAX, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_VMAllReduce(vm, minerror, minerrorg, 1, ESMF_REDUCE_MIN, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
#if 0
! Uncomment these calls to see some actual regrid results
if (localPet == 0) then
write(*,*)
write(*,*) "Grid to Mesh Interpolation:"
write(*,*) "Max Error = ", maxerrorg(1)
write(*,*) "Min Error = ", minerrorg(1)
write(*,*)
endif
#endif
! 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
call ESMF_FieldDestroy(xdstField, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Free the grids
call ESMF_GridDestroy(srcGrid, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_GridDestroy(dstGrid, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! Free the meshes
call ESMF_MeshDestroy(srcMesh, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
call ESMF_MeshDestroy(dstMesh, rc=localrc)
if (localrc /=ESMF_SUCCESS) then
rc=ESMF_FAILURE
return
endif
! return failure if error too big
if (maxerrorg(1) > 5.0E-3) rc=ESMF_FAILURE
end subroutine test_regrid_w_gtom