user_init Subroutine

public subroutine user_init(comp, importState, exportState, clock, rc)

Arguments

Type IntentOptional Attributes Name
type(ESMF_GridComp) :: comp
type(ESMF_State) :: importState
type(ESMF_State) :: exportState
type(ESMF_Clock) :: clock
integer, intent(out) :: rc

Calls

proc~~user_init~4~~CallsGraph proc~user_init~4 user_init esmf_fieldbundlecreate esmf_fieldbundlecreate proc~user_init~4->esmf_fieldbundlecreate esmf_stateadd esmf_stateadd proc~user_init~4->esmf_stateadd interface~esmf_gridcreatenoperidim ESMF_GridCreateNoPeriDim proc~user_init~4->interface~esmf_gridcreatenoperidim interface~esmf_gridget ESMF_GridGet proc~user_init~4->interface~esmf_gridget interface~esmf_vmget ESMF_VMGet proc~user_init~4->interface~esmf_vmget proc~esmf_arrayspecset ESMF_ArraySpecSet proc~user_init~4->proc~esmf_arrayspecset proc~esmf_finalize ESMF_Finalize proc~user_init~4->proc~esmf_finalize proc~esmf_gridcompget ESMF_GridCompGet proc~user_init~4->proc~esmf_gridcompget

Source Code

  subroutine user_init(comp, importState, exportState, clock, rc)
    type(ESMF_GridComp) :: comp
    type(ESMF_State) :: importState, exportState
    type(ESMF_Clock) :: clock
    integer, intent(out) :: rc

    ! Local variables
    type(ESMF_ArraySpec)  :: arrayspec
    type(ESMF_Grid)       :: grid
    type(ESMF_FieldBundle):: fieldbundle
    type(ESMF_VM)         :: vm
    integer               :: petCount, i
    character(len=ESMF_MAXSTR) :: names(3)
    real(ESMF_KIND_R8), pointer :: farrayPtr(:,:,:)   ! matching F90 array pointer
    integer               :: compLBnd(2),compUBnd(2)
    
    ! Initialize return code
    rc = ESMF_SUCCESS

    print *, "User Comp2 Init starting"

    ! Determine petCount
    call ESMF_GridCompGet(comp, vm=vm, rc=rc)
    if (rc/=ESMF_SUCCESS) call ESMF_Finalize(rc=rc, endflag=ESMF_END_ABORT)
    call ESMF_VMGet(vm, petCount=petCount, rc=rc)
    if (rc/=ESMF_SUCCESS) call ESMF_Finalize(rc=rc, endflag=ESMF_END_ABORT)
    
    ! Create the destination FieldBundle and add it to the import State
    call ESMF_ArraySpecSet(arrayspec, typekind=ESMF_TYPEKIND_R8, rank=2, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    grid = ESMF_GridCreateNoPeriDim(minIndex=(/1,1/), maxIndex=(/100,150/), &
      regDecomp=(/1,petCount/), &
      gridEdgeLWidth=(/0,0/), gridEdgeUWidth=(/0,0/), & ! no stagger padding
      indexflag=ESMF_INDEX_GLOBAL, rc=rc)
    if (rc/=ESMF_SUCCESS) call ESMF_Finalize(rc=rc, endflag=ESMF_END_ABORT)

    ! Get Bounds
    call ESMF_GridGet(grid, localDe=0, staggerloc=ESMF_STAGGERLOC_CENTER, &
           computationalLBound=compLBnd, computationalUBound=compUBnd, rc=rc)
    if (rc/=ESMF_SUCCESS) call ESMF_Finalize(rc=rc, endflag=ESMF_END_ABORT)

    allocate(farrayPtr(3,compLBnd(1):compUBnd(1),compLBnd(2):compUBnd(2)))
    names(1) = 'field01'
    names(2) = 'field02'
    names(3) = 'field03'

    fieldbundle = ESMF_FieldBundleCreate(fieldNameList=names, fieldDim=1, &
        grid=grid, farrayPtr=farrayPtr, &
        gridToFieldMap=(/2,3/), &
        name="fieldbundle data", rc=rc)
    if (rc/=ESMF_SUCCESS) call ESMF_Finalize(rc=rc, endflag=ESMF_END_ABORT)

    call ESMF_StateAdd(importState, fieldbundleList=(/fieldbundle/), rc=rc)
    if (rc/=ESMF_SUCCESS) call ESMF_Finalize(rc=rc, endflag=ESMF_END_ABORT)
   
    print *, "User Comp2 Init returning"

  end subroutine user_init