Date: 2021-03-03T22:27:08+00:00

Actual source code: ex1f90.F90
petsc-3.14.5 2021-03-03
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      1: program  ex1f90
      2: #include <petsc/finclude/petscdmlabel.h>
      3:   use petscdm
      4:   use petscdmlabel
      5:   implicit NONE

      7:   type(tDM)                         :: dm, dmDist
      8:   character(len=PETSC_MAX_PATH_LEN) :: filename
      9:   PetscBool                         :: interpolate = PETSC_FALSE
     10:   PetscBool                         :: flg
     11:   PetscErrorCode                    :: ierr
     12:   PetscInt                          :: izero
     13:   izero = 0

     15:   call PetscInitialize(PETSC_NULL_CHARACTER,ierr)
     16:     if (ierr .ne. 0) then
     17:     print*,'Unable to initialize PETSc'
     18:     stop
     19:   endif
     20:   call PetscOptionsGetString(PETSC_NULL_OPTIONS,PETSC_NULL_CHARACTER,"-i",filename,flg,ierr);CHKERRA(ierr)
     21:   call PetscOptionsGetBool(PETSC_NULL_OPTIONS,PETSC_NULL_CHARACTER,"-interpolate",interpolate,flg,ierr);CHKERRA(ierr)

     23:   call DMPlexCreateFromFile(PETSC_COMM_WORLD,filename,interpolate,dm,ierr);CHKERRA(ierr)
     24:   call DMPlexDistribute(dm,izero,PETSC_NULL_SF,dmDist,ierr);CHKERRA(ierr)
     25:   if (dmDist /= PETSC_NULL_DM) then
     26:     call DMDestroy(dm,ierr);CHKERRA(ierr)
     27:     dm = dmDist
     28:   end if

     30:   call ViewLabels(dm,PETSC_VIEWER_STDOUT_WORLD,ierr);CHKERRA(ierr)
     31:   call DMDestroy(dm,ierr);CHKERRA(ierr)
     32:   call PetscFinalize(ierr)

     34: contains
     35:   subroutine ViewLabels(dm,viewer,ierr)
     36:     type(tDM)                        :: dm
     37:     type(tPetscViewer)               :: viewer
     38:     PetscErrorCode                   :: ierr

     40:     DMLabel                          :: label
     41:     type(tIS)                        :: labelIS
     42:     character(len=PETSC_MAX_PATH_LEN):: labelName,IObuffer
     43:     PetscInt                         :: numLabels,l

     45:     call DMGetNumLabels(dm, numLabels, ierr);
     46:     write(IObuffer,*) 'Number of labels: ', numLabels, '\n'
     47:     call PetscViewerASCIIPrintf(viewer, IObuffer, ierr);CHKERRQ(ierr)
     48:     do l = 0, numLabels-1
     49:       call DMGetLabelName(dm, l, labelName, ierr);CHKERRQ(ierr)
     50:       write(IObuffer,*) 'label ',l,' name: ',trim(labelName),'\n'
     51:       call PetscViewerASCIIPrintf(viewer, IObuffer, ierr);CHKERRQ(ierr)

     53:       call PetscViewerASCIIPrintf(viewer, "IS of values\n", ierr);CHKERRQ(ierr)
     54:       call DMGetLabel(dm, labelName, label, ierr);CHKERRQ(ierr)
     55:       call DMLabelGetValueIS(label, labelIS, ierr);CHKERRQ(ierr)
     56: !      call PetscViewerASCIIPushTab(viewer,ierr);CHKERRQ(ierr)
     57:       call ISView(labelIS, viewer, ierr);CHKERRQ(ierr)
     58: !      call PetscViewerASCIIPopTab(viewer,ierr);CHKERRQ(ierr)
     59:       call ISDestroy(labelIS, ierr);CHKERRQ(ierr)
     60:       call PetscViewerASCIIPrintf(viewer, "\n", ierr);CHKERRQ(ierr)
     61:     end do

     63:     call PetscViewerASCIIPrintf(viewer,"\n\nCell Set label IS\n",ierr);CHKERRQ(ierr)
     64:     call DMGetLabel(dm, "Cell Sets", label, ierr);CHKERRQ(ierr)
     65:     call DMLabelGetValueIS(label, labelIS, ierr);CHKERRQ(ierr)
     66:     call ISView(labelIS, viewer, ierr);CHKERRQ(ierr)
     67:     call ISDestroy(labelIS, ierr);CHKERRQ(ierr)
     68:   end subroutine viewLabels
     69: end program ex1F90

     71: !/*TEST
     72: !
     73: !  test:
     74: !    suffix: 0
     75: !    args: -i ${wPETSC_DIR}/share/petsc/datafiles/meshes/blockcylinder-50.exo -interpolate
     76: !    requires: exodusii
     77: !
     78: !TEST*/