PLAG_CECellsClearRequestsData.F90

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! *********************************************************************
! * Rocstar Simulation Suite                                          *
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! *********************************************************************
!******************************************************************************
!
! Purpose: wait until data is received by other processors
!          communicating with the current region adjacent to regions with
!          corner or edge cells.
!
! Description: none.
!
! Input: 
!   regions = data of all regions
!   iReg    = index of current region.
!
! Output: None.
!
! Notes: None.
!
!******************************************************************************
!
! $Id: PLAG_CECellsClearRequestsData.F90,v 1.3 2008/12/06 08:44:32 mtcampbe Exp $
!
! Copyright: (c) 2004 by the University of Illinois
!
!******************************************************************************

SUBROUTINE plag_cecellsclearrequestsdata( regions, iReg )

  USE moddatatypes
  USE moderror
  USE modmpi
  USE modparameters
  USE modglobal,     ONLY : t_global
  USE moddatastruct, ONLY : t_region, t_level, t_dcelltransf

  USE modpartlag,    ONLY : t_plag

  IMPLICIT NONE

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

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

  TYPE(t_region), POINTER :: regions(:)
  
  INTEGER, INTENT(IN)     :: ireg

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

  CHARACTER(CHRLEN) :: rcsidentstring
 
#ifdef MPI
  INTEGER :: statusplag(mpi_status_size)
#endif
  INTEGER :: ilev,ir,irequestplag,nbuffsizeplag

  LOGICAL :: dowait

  TYPE(t_global),      POINTER :: global
  TYPE(t_level),       POINTER :: plevel
  TYPE(t_plag),        POINTER :: pplag
  TYPE(t_region),      POINTER :: pregion 

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

  rcsidentstring = '$RCSfile: PLAG_CECellsClearRequestsData.F90,v $ $Revision: 1.3 $'

  global => regions(1)%global

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

#ifdef MPI
  
! ******************************************************************************
! Get dimensions 
! ******************************************************************************

  ilev = regions(ireg)%currLevel

! ******************************************************************************
! Set pointers 
! ******************************************************************************
 
  pregion => regions(ireg)
  plevel  => regions(ireg)%levels(ilev)
  pplag   => plevel%plag

! ******************************************************************************
!   Wait for edges & corners being received by other processors 
! ******************************************************************************

  DO ir=1,global%nRegions
    IF (regions(ireg)%levels(ilev)%sendEcCells(ir)%nCells > 0) THEN
      irequestplag = plevel%sendEcCells(ir)%iRequestPlag
      nbuffsizeplag = plevel%sendEcCells(ir)%nBuffSizePlag

      IF ( (regions(ir)%procid /= global%myProcid) .AND. &
           (nbuffsizeplag /= 0) ) THEN
        CALL mpi_wait( pplag%requestsCECellsI(irequestplag), statusplag, global%mpierr )
        IF (global%mpierr /= err_none) & 
          CALL errorstop( global,err_mpi_trouble,__line__ )
        
        CALL mpi_wait( pplag%requestsCECellsR(irequestplag), statusplag, global%mpierr )
        IF (global%mpierr /= err_none) & 
          CALL errorstop( global,err_mpi_trouble,__line__ )

      ENDIF ! nBuffSizePlag
    ENDIF ! nCells
  ENDDO ! ir
#endif

! ******************************************************************************
! Finalize 
! ******************************************************************************

  CALL deregisterfunction( global )

END SUBROUTINE plag_cecellsclearrequestsdata

!******************************************************************************
!
! RCS Revision history:
!
! $Log: PLAG_CECellsClearRequestsData.F90,v $
! Revision 1.3  2008/12/06 08:44:32  mtcampbe
! Updated license.
!
! Revision 1.2  2008/11/19 22:17:45  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.1  2004/12/01 20:57:06  fnajjar
! Initial revision after changing case
!
! Revision 1.1  2004/03/18 21:43:27  fnajjar
! Initial import for MPI-based data buffer communication
!
! Revision 1.1  2004/03/10 23:16:09  fnajjar
! Initial import of routines to MPI-communicate buffer sizes
!
!******************************************************************************