Hi, There is also support for the exodus format, with parallel IO. Have a look at src/dm/impls/plex/tests/ex26.c for an example. Exodus is a bit complicated and needs formatting before you can start dumping data in a file. It is supported by pretty much all post-processing software on the market.
Blaise > On Sep 3, 2020, at 9:53 AM, Jed Brown <[email protected]> wrote: > > Use the xml format (not the legacy format) by naming your file.vtu instead of > file.vtk > > On Thu, Sep 3, 2020, at 8:17 AM, Berend van Wachem wrote: >> Dear PETSc, >> >> What is the best way to write data from a DMPLEX vector to file, so it >> can be viewed with paraview? >> I've found that the standard VTK format works for a serial job, but if >> there is more than 1 processor, the geometry data gets messed up. >> I've attached a small working example for a cylinder and the visualised >> geometry with paraview for 1 processors and 4 processors. >> Any pointers or "best practice" very much appreciated. >> >> Best regards, >> >> Berend. >> >> >> >> >> Attachments: >> • visualisemesh-1proc.png >> • visualisemesh-4proc.png >> • visualizemesh.c -- A.K. & Shirley Barton Professor of Mathematics Adjunct Professor of Mechanical Engineering Adjunct of the Center for Computation & Technology Louisiana State University, Lockett Hall Room 344, Baton Rouge, LA 70803, USA Tel. +1 (225) 578 1612, Fax +1 (225) 578 4276 Web http://www.math.lsu.edu/~bourdin
