user_initP2 Subroutine

public subroutine user_initP2(comp, importState, exportState, clock, rc)

Arguments

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

Source Code

  subroutine user_initP2(comp, importState, exportState, clock, rc)
    type(ESMF_CplComp)    :: comp
    type(ESMF_State)      :: importState, exportState
    type(ESMF_Clock)      :: clock
    integer, intent(out)  :: rc

    ! Local variables
    type(ESMF_Field)    :: srcField, dstField
    type(ESMF_Grid)     :: srcGrid, dstGrid
    type(ESMF_DistGrid) :: dstDistGrid

    ! Initialize return code
    rc = ESMF_SUCCESS

    print *, "User Coupler Init phase=2 starting"
    call ESMF_LogWrite (msg='User Coupler Init phase=2 starting', &
      logmsgFlag=ESMF_LOGMSG_TRACE)

    ! Need to re-reconcile import and export states
    call ESMF_StateReconcile(importState, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    call ESMF_StateReconcile(exportState, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out

    ! Access source Field and Grid
    call ESMF_StateGet(importState, "srcField", srcField, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    call ESMF_FieldGet(srcField, grid=srcGrid, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    
    ! Access destination Field, Grid, and DistGrid
    call ESMF_StateGet(exportState, "dstField", dstField, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    call ESMF_FieldGet(dstField, grid=dstGrid, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    call ESMF_GridGet(dstGrid, distgrid=dstDistGrid, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    
    ! Create a new dstGrid from srcGrid, considering dstDistGrid
    ! Now that dstDistGrid is reconciled, it can be used without the need
    ! for passing in the dstVM argument. The resulting dstGrid will function
    ! correctly in the CplComp context, as well as the Comp2 context.
    dstGrid = ESMF_GridCreate(srcGrid, dstDistGrid,rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
    
    ! Set the new dstGrid in the dstField to make it available to Comp2
    call ESMF_FieldEmptySet(dstField, grid=dstGrid, rc=rc)
    if (rc/=ESMF_SUCCESS) return ! bail out
        
    call ESMF_LogWrite (msg='User Coupler Init phase=2 complete', &
      logmsgFlag=ESMF_LOGMSG_TRACE)
    print *, "User Coupler Init phase=2 returning"
   
  end subroutine user_initP2