RADI_rFLO_ReadSolution.F90

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!******************************************************************************
!
! Purpose: read in radiation solution.
!
! Description: the following solution formats are supported:
!              - RocfloMP ASCII
!              - RocfloMP binary.
!
! Input: regions = dimensions of all regions.
!
! Output: 
!        global%currentTime    = physical time
!        global%resInit        = initial residual
!
! Notes: solution is read in only for the current grid level;
!        solution is also read in for all dummy cells.
!
!******************************************************************************
!
! $Id: RADI_rFLO_ReadSolution.F90,v 1.3 2008/12/06 08:44:38 mtcampbe Exp $
!
! Copyright: (c) 2001 by the University of Illinois
!
!******************************************************************************

SUBROUTINE radi_rflo_readsolution( regions ) ! PUBLIC

  USE moddatatypes
  USE moddatastruct, ONLY : t_region
  USE modglobal, ONLY     : t_global
  USE modinterfaces, ONLY : rflo_readdatafileint, rflo_readdatafilereal, &
                            rflo_getdimensdummy, rflo_getcelloffset
  USE moderror
  USE modmpi
  USE modparameters
  USE radi_modparameters
  IMPLICIT NONE

#include "Indexing.h"

! ... parameters
  TYPE(t_region), POINTER :: regions(:)

! ... loop variables
  INTEGER :: ireg, i, j, k, n, ifld

! ... local variables
  CHARACTER(2*CHRLEN+17) :: fname
  CHARACTER(CHRLEN)      :: msg, timestring

#ifdef MPI
  INTEGER :: status(mpi_status_size)
#endif
  INTEGER :: ilev, iregfile, ipc, jpc, kpc, ndumcells, ioff, ijoff, ijk
  INTEGER :: idcbeg, jdcbeg, kdcbeg, idcend, jdcend, kdcend, ijkbeg, ijkend
  INTEGER :: ndimc, nrvar, noutsol, nang, nsolcomp, errorflag
  INTEGER, ALLOCATABLE :: ivar(:,:)

  REAL(RFREAL), POINTER     :: rcv(:,:)
  REAL(RFREAL), ALLOCATABLE :: rvar(:,:), solfile(:,:), dumfile(:,:)

  TYPE(t_global), POINTER :: global

!******************************************************************************

  global => regions(1)%global

  CALL registerfunction( global,'RADI_RFLO_ReadSolution',&
  'RADI_rFLO_ReadSolution.F90' )

! allocate fixed-size temporary data arrays -----------------------------------

  nrvar = 2

  ALLOCATE( ivar(5,1),stat=errorflag )
  ALLOCATE( rvar(nrvar,1),stat=errorflag )
  global%error = errorflag
  IF (global%error /= 0) CALL errorstop( global,err_allocate,__line__ )

! copy time to string ---------------------------------------------------------

  IF (global%flowType == flow_unsteady) THEN
    WRITE(timestring,'(1PE11.5)') global%timeStamp
  ELSE
    WRITE(timestring,'(1PE11.5)') 0._rfreal
  ENDIF

! open solution file (only master proc.) --------------------------------------

  IF (global%myProcid == masterproc) THEN

! - unsteady flow

    IF (global%flowType == flow_unsteady) THEN
      IF (global%solutFormat == format_ascii) THEN
        WRITE(fname,'(A,1PE11.5)') trim(global%inDir)//trim(global%casename)//'.radia_', &
                                   global%timeStamp
        OPEN(if_solut,file=fname,form='formatted',status='old',iostat=errorflag)
      ELSE IF (global%solutFormat == format_binary) THEN
        WRITE(fname,'(A,1PE11.5)') trim(global%inDir)//trim(global%casename)//'.radib_', &
                                   global%timeStamp
        OPEN(if_solut,file=fname,form='unformatted',status='old',iostat=errorflag)
      ELSE
        CALL errorstop( global,err_unknown_format,__line__ )
      ENDIF

! - steady flow

    ELSE
      IF (global%solutFormat == format_ascii) THEN
        WRITE(fname,'(A,I6.6)') trim(global%inDir)//trim(global%casename)//'.radia_', &
                                global%currentIter
        OPEN(if_solut,file=fname,form='formatted',status='old',iostat=errorflag)
      ELSE IF (global%solutFormat == format_binary) THEN
        WRITE(fname,'(A,I6.6)') trim(global%inDir)//trim(global%casename)//'.radib_', &
                                global%currentIter
        OPEN(if_solut,file=fname,form='unformatted',status='old',iostat=errorflag)
      ELSE
        CALL errorstop( global,err_unknown_format,__line__ )
      ENDIF
    ENDIF

    global%error = errorflag
    IF (global%error /= 0) &
      CALL errorstop( global,err_file_open,__line__,'File: '//trim(fname) )

  ENDIF   ! MASTERPROC

! read & broadcast time and initial residual in file --------------------------

  IF (global%myProcid == masterproc) THEN
    CALL rflo_readdatafilereal( global,if_solut,global%solutFormat,nrvar,1,rvar )
  ENDIF

#ifdef MPI
  CALL mpi_bcast( rvar,nrvar,mpi_rfreal,masterproc,global%mpiComm,global%mpierr )
  IF (global%mpierr /=0 ) CALL errorstop( global,err_mpi_trouble,__line__ )
#endif

  IF (global%flowType==flow_unsteady .AND. global%currentTime>0._rfreal) THEN
    IF (global%currentTime /= rvar(1,1)) THEN
      WRITE(msg,1000) rvar(1,1),global%currentTime
      CALL errorstop( global,err_time_solution,__line__,msg//' File: '//trim(fname) )
    ENDIF
  ELSE
    global%currentTime = rvar(1,1)
  ENDIF
  global%resInit      = rvar(2,1)

! read solution data ----------------------------------------------------------

! first define some parameters

  noutsol  = 1
  nang     = regions(ireg)%radiInput%nAng
  nsolcomp = 3+radi_coeff_ncomp+nang

  DO ireg=1,global%nRegions

! - get dimensions and pointers

    ilev = regions(ireg)%currLevel
    CALL rflo_getdimensdummy( regions(ireg),ilev,idcbeg,idcend, &
                              jdcbeg,jdcend,kdcbeg,kdcend )
    CALL rflo_getcelloffset( regions(ireg),ilev,ioff,ijoff )
    ijkbeg = indijk(idcbeg,jdcbeg,kdcbeg,ioff,ijoff)
    ijkend = indijk(idcend,jdcend,kdcend,ioff,ijoff)
    ndimc  = ijkend - ijkbeg + 1

! - read region number and dimensions (only master)

    IF (global%myProcid == masterproc) THEN
      CALL rflo_readdatafileint( global,if_solut,global%solutFormat,5,1,ivar )
      iregfile  = ivar(1,1)
      ipc       = ivar(2,1)
      jpc       = ivar(3,1)
      kpc       = ivar(4,1)
      ndumcells = ivar(5,1)

      IF (iregfile /= ireg) &
        CALL errorstop( global,err_region_number,__line__,'File: '//trim(fname) )
      IF ((ipc /= regions(ireg)%levels(ilev)%grid%ipc) .OR. &
          (jpc /= regions(ireg)%levels(ilev)%grid%jpc) .OR. &
          (kpc /= regions(ireg)%levels(ilev)%grid%kpc)) THEN
        WRITE(msg,1005) ireg,ipc,jpc,kpc
        CALL errorstop( global,err_grid_dimensions,__line__,msg )
      ENDIF
      IF (ndumcells /= regions(ireg)%nDumCells) THEN
        WRITE(msg,1010) ireg,ndumcells,regions(ireg)%nDumCells
        CALL errorstop( global,err_grid_dumcells,__line__,msg )
      ENDIF
    ENDIF

! - master reads & sends data, others receive them

    IF (global%myProcid == masterproc) THEN

      ALLOCATE( solfile(noutsol,ndimc),stat=errorflag )
      global%error = errorflag
      IF (global%error /= 0) CALL errorstop( global,err_allocate,__line__ )

      ALLOCATE( dumfile(1,ndimc),stat=errorflag )
      global%error = errorflag
      IF (global%error /= 0) CALL errorstop( global,err_allocate,__line__ )

      solfile(:,:) = 0._rfreal
      IF (regions(ireg)%radiInput%radiModel == radi_model_fldtran) THEN
        CALL rflo_readdatafilereal( global,if_solut,global%solutFormat, &
                                    noutsol,ndimc,solfile )
      ENDIF
      DO ifld = 1,nsolcomp
        CALL rflo_readdatafilereal( global,if_solut,global%solutFormat, &
                                    1,ndimc,dumfile )
      ENDDO

#ifdef MPI
      IF (regions(ireg)%procid /= masterproc) THEN
        CALL mpi_send( noutsol,1,mpi_integer, &
                       regions(ireg)%procid,ireg, &
                       global%mpiComm,global%mpierr )
        IF (global%mpierr /=0 ) CALL errorstop( global,err_mpi_trouble,__line__ )
        CALL mpi_send( solfile,noutsol*ndimc,mpi_rfreal, &
                       regions(ireg)%procid,ireg, &
                       global%mpiComm,global%mpierr )
        IF (global%mpierr /=0 ) CALL errorstop( global,err_mpi_trouble,__line__ )
      ENDIF
#endif

    ELSE   ! not the master

      IF (regions(ireg)%procid == global%myProcid) THEN
#ifdef MPI
        CALL mpi_recv( noutsol,1,mpi_integer,masterproc,ireg, &
                       global%mpiComm,status,global%mpierr )
        IF (global%mpierr /=0 ) CALL errorstop( global,err_mpi_trouble,__line__ )
#endif
        ALLOCATE( solfile(noutsol,ndimc),stat=errorflag )
        global%error = errorflag
        IF (global%error /= 0) CALL errorstop( global,err_allocate,__line__ )

#ifdef MPI
        CALL mpi_recv( solfile,noutsol*ndimc,mpi_rfreal,masterproc,ireg, &
                       global%mpiComm,status,global%mpierr )
        IF (global%mpierr /=0 ) CALL errorstop( global,err_mpi_trouble,__line__ )
#endif
      ENDIF

    ENDIF

! - copy solution into data structure

    IF (regions(ireg)%procid == global%myProcid) THEN
      IF (regions(ireg)%radiInput%radiModel == radi_model_fldtran) THEN
        rcv => regions(ireg)%levels(ilev)%radi%cv
        n  = 0
        DO k=kdcbeg,kdcend
          DO j=jdcbeg,jdcend
            DO i=idcbeg,idcend
              n   = n + 1
              ijk = indijk(i,j,k,ioff,ijoff)
              rcv(tv_mixt_muet,ijk) = solfile(2,n)
            ENDDO
          ENDDO
        ENDDO
      ENDIF    ! radiModel
    ENDIF      ! global%myProcid

    IF (ALLOCATED(solfile)) THEN
      DEALLOCATE( solfile,stat=errorflag )
      global%error = errorflag
      IF (global%error /= 0) CALL errorstop( global,err_deallocate,__line__ )
    ENDIF

  ENDDO     ! iReg

! finalize --------------------------------------------------------------------

  IF (global%myProcid == masterproc) THEN
    CLOSE(if_solut,iostat=errorflag)
    global%error = errorflag
    IF (global%error /= 0) &
      CALL errorstop( global,err_file_close,__line__,'File: '//trim(fname) )
  ENDIF

  CALL deregisterfunction( global )

1000 FORMAT('Time in file is= ',1pe12.5,' but it should be= ',e12.5,'.')
1005 FORMAT('Region ',i5,', ipc= ',i6,', jpc= ',i6,', kpc= ',i6,'.')
1010 FORMAT('Region ',i5,', # dummy cells=',i2,' but should be= ',i1)

END SUBROUTINE radi_rflo_readsolution

!******************************************************************************
!
! RCS Revision history:
!
! $Log: RADI_rFLO_ReadSolution.F90,v $
! Revision 1.3  2008/12/06 08:44:38  mtcampbe
! Updated license.
!
! Revision 1.2  2008/11/19 22:17:50  mtcampbe
! Added Illinois Open Source License/Copyright
!
! Revision 1.1  2004/09/30 17:49:10  wasistho
! prepared for full FLD radiation model
!
!
!
!******************************************************************************