RFLU_CheckCouplingInput.F90

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! ******************************************************************************
!
! Purpose: Check that have coupled boundaries defined for coupled simulations.
!
! Description: None.
!
! Input: 
!   regions     Regions data
!
! Output: None.
!
! Notes: None.
!
! ******************************************************************************
!
! $Id: RFLU_CheckCouplingInput.F90,v 1.4 2008/12/06 08:44:01 mtcampbe Exp $
!
! Copyright: (c) 2003-2005 by the University of Illinois
!
! ******************************************************************************

SUBROUTINE rflu_checkcouplinginput(regions)

  USE moddatatypes
  USE moddatastruct, ONLY: t_region
  USE modglobal, ONLY: t_global
  USE modbndpatch, ONLY: t_patch
  USE moderror
  USE modparameters
  USE modmpi

  IMPLICIT NONE

! ******************************************************************************
! Definitions and declarations
! ******************************************************************************

! ==============================================================================
! Arguments
! ==============================================================================

  TYPE(t_region), DIMENSION(:) :: regions

! ==============================================================================
! Locals
! ==============================================================================

  CHARACTER(CHRLEN)   :: rcsidentstring
  INTEGER :: cntrglob,cntrloc,errorflag,ipatch,ireg
  TYPE(t_patch), POINTER :: ppatch
  TYPE(t_global), POINTER :: global

! ******************************************************************************
! Start
! ******************************************************************************

  rcsidentstring = '$RCSfile: RFLU_CheckCouplingInput.F90,v $ $Revision: 1.4 $'

  global => regions(1)%global

  CALL registerfunction(global,'RFLU_CheckCouplingInput',&
  'RFLU_CheckCouplingInput.F90')

  IF ( global%myProcid == masterproc .AND. &
       global%verbLevel > verbose_none ) THEN
    WRITE(stdout,'(A,1X,A)') solver_name,'Checking coupling input...' 
  END IF ! global%verbLevel

  cntrglob = 0
  cntrloc  = 0

! ******************************************************************************
! Count number of interacting patches on this processor
! ******************************************************************************
  
  DO ireg = lbound(regions,1),ubound(regions,1)
    DO ipatch = 1,regions(ireg)%grid%nPatches
      ppatch => regions(ireg)%patches(ipatch)

      IF ( ppatch%bcCoupled /= bc_not_coupled ) THEN 
        cntrloc = cntrloc + 1
      END IF ! pPatch%bcCoupled
    END DO ! iPatch  
  END DO ! iReg
  
! ******************************************************************************
! Reduce to total number of interacting patches, exit if none
! ******************************************************************************

  CALL mpi_reduce(cntrloc,cntrglob,1,mpi_integer,mpi_sum,masterproc, & 
                  global%mpiComm,errorflag)
  global%error = errorflag
  IF ( global%error /= err_none ) THEN 
    CALL errorstop(global,err_mpi_trouble,__line__)
  END IF ! global%errorFlag
  
  IF ( global%myProcid == masterproc .AND. cntrglob == 0 ) THEN 
    CALL errorstop(global,err_bccoupled_none,__line__)
  END IF ! global%myProcid

! ******************************************************************************
! End
! ******************************************************************************

  IF ( global%myProcid == masterproc .AND. &
       global%verbLevel > verbose_none ) THEN    
    WRITE(stdout,'(A,1X,A)') solver_name,'Checking coupling input done.' 
  END IF ! global%verbLevel   

  CALL deregisterfunction(global)

END SUBROUTINE rflu_checkcouplinginput

! ******************************************************************************
!
! RCS Revision history:
!
! $Log: RFLU_CheckCouplingInput.F90,v $
! Revision 1.4  2008/12/06 08:44:01  mtcampbe
! Updated license.
!
! Revision 1.3  2008/11/19 22:17:15  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.2  2005/04/15 15:05:58  haselbac
! Converted to MPI, cosmetics
!
! Revision 1.1  2003/05/01 14:04:23  haselbac
! Initial revision
!
! ******************************************************************************