On Jan 9, 2013, at 10:23 AM, Jed Brown <jedbrown at mcs.anl.gov<mailto:jedbrown at mcs.anl.gov>> wrote:
On Wed, Jan 9, 2013 at 10:20 AM, Matthew Knepley <knepley at gmail.com<mailto:knepley at gmail.com>> wrote: On Wed, Jan 9, 2013 at 10:10 AM, Blaise A Bourdin <bourdin at lsu.edu<mailto:bourdin at lsu.edu>> wrote: That's a good start indeed. Is there any way to save files defined on different DMDA (same grid but different number of dof). When I try to do that, I get the following error message: Hmm, that would mean introducing a structural comparison rather than an identity. Oh, good point. If someone implements a test for DM congruence, I can generalize the viewer. Wouldn't it be trivial for a DMDA? Blaise Matt MacBook-Pro:VTK blaise$ ./TestVTK [0]PETSC ERROR: --------------------- Error Message ------------------------------------ [0]PETSC ERROR: Arguments are incompatible! [0]PETSC ERROR: Cannot write a field from more than one grid to the same VTK file! [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Petsc Release Version 3.3.0, Patch 5, unknown [0]PETSC ERROR: See docs/changes/index.html for recent updates. [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting. [0]PETSC ERROR: See docs/index.html for manual pages. [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: ./TestVTK on a Darwin-gc named MacBook-Pro.local by blaise Wed Jan 9 10:09:37 2013 [0]PETSC ERROR: Libraries linked from /opt/HPC/petsc-3.3/Darwin-gcc4.2-mef90-g/lib [0]PETSC ERROR: Configure run at Thu Jan 3 15:42:04 2013 [0]PETSC ERROR: Configure options --download-boost=1 --download-chaco=1 --download-exodusii=/opt/HPC/src/tarball/exodusii-5.22b.tgz --download-hdf5=1 --download-metis=1 --download-netcdf=1 --download-parmetis=1 --download-sowing=1 --download-triangle=1 --download-yaml=1 --with-clanguage=C++ --with-cmake=cmake --with-debugging=1 --with-fortran-datatypes --with-gnu-compilers=1 --with-mpi-dir=/opt/HPC/mpich2-1.4.1p1-gcc4.2 --with-pic --with-shared-libraries=1 --with-sieve --with-sieve-memory-logging --with-x11=1 PETSC_ARCH=Darwin-gcc4.2-mef90-g [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: PetscViewerVTKAddField_VTK() line 126 in /opt/HPC/petsc-3.3/src/sys/viewer/impls/vtk/vtkv.c [0]PETSC ERROR: PetscViewerVTKAddField() line 32 in /opt/HPC/petsc-3.3/src/sys/viewer/impls/vtk/vtkv.c [0]PETSC ERROR: VecView_MPI_DA() line 531 in /opt/HPC/petsc-3.3/src/dm/impls/da/gr2.c [0]PETSC ERROR: VecView() line 776 in /opt/HPC/petsc-3.3/src/vec/vec/interface/vector.c [0]PETSC ERROR: main() line 46 in TestVTK.c application called MPI_Abort(MPI_COMM_WORLD, 75) - process 0 [unset]: aborting job: application called MPI_Abort(MPI_COMM_WORLD, 75) - process 0 Blaise On Jan 9, 2013, at 9:51 AM, Jed Brown <jedbrown at mcs.anl.gov<mailto:jedbrown at mcs.anl.gov>> wrote: None of that crazy "developer" nonsense is need for users. Just do this: PetscViewer viewer; /* file name extension sets format by default, see also PetscViewerSetFormat(viewer,PETSC_VIEWER_VTK_VTS) */ ierr = PetscViewerVTKOpen(comm,"yourfile.vts",FILE_MODE_WRITE,&viewer);CHKERRQ(ierr); ierr = VecView(X,viewer);CHKERRQ(ierr); ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); When using TS, you can do -ts_monitor_draw_solution_vtk 'filename-%03D.vts' to save each time step to a numbered binary file (ready to animate in paraview or visit). On Wed, Jan 9, 2013 at 9:37 AM, Blaise A Bourdin <bourdin at lsu.edu<mailto:bourdin at lsu.edu>> wrote: Hi, I am looking at the documentation and the examples looking for a simple illustration of how to use the new vtk binary viewers for structured data defined by a DMDA, but can't find any straightforward example. Is there a simple example that I am missing? When I try PetscViewerVTKAddField(VTKviewer,(PetscObject) dmda1,DMDAVTKWriteAll,PETSC_VTK_POINT_FIELD,(PetscObject) p);CHKERRQ(ierr); I get a compilation time error: TestVTK.c:53: error: ?DMDAVTKWriteAll? was not declared in this scope indeed, DMDAVTKWriteAll is defined in a private header. Is this the way it is supposed to be? Is the xml file describing the content of the binary files generated automatically or do I need to take care of it by myself? I am using petsc-3.3, latest changeset. Regards, Blaise -- Department of Mathematics and Center for Computation & Technology Louisiana State University, Baton Rouge, LA 70803, USA Tel. +1 (225) 578 1612<tel:%2B1%20%28225%29%20578%201612>, Fax +1 (225) 578 4276<tel:%2B1%20%28225%29%20578%204276> http://www.math.lsu.edu/~bourdin -- Department of Mathematics and Center for Computation & Technology Louisiana State University, Baton Rouge, LA 70803, USA Tel. +1 (225) 578 1612<tel:%2B1%20%28225%29%20578%201612>, Fax +1 (225) 578 4276<tel:%2B1%20%28225%29%20578%204276> http://www.math.lsu.edu/~bourdin -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -- Department of Mathematics and Center for Computation & Technology Louisiana State University, Baton Rouge, LA 70803, USA Tel. +1 (225) 578 1612, Fax +1 (225) 578 4276 http://www.math.lsu.edu/~bourdin -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20130109/2321404b/attachment.html>
