On Tue, Oct 20, 2009 at 03:46:36PM -0400, Shawn Walker wrote: > > Hello. This really isn't a bug, but I think it should not give such a > ridiculous error. > > If I login to my linux machine and run the Stokes DEMO, I get this: > > =================================== > Solving linear variational problem > Matrix of size 25140 x 25140 has 730140 nonzero entries. > Applying boundary conditions to linear system. > Applying boundary conditions to linear system. > Applying boundary conditions to linear system. > Solving linear system of size 25140 x 25140 (PETSc LU solver, umfpack). > Plotting x (unnamed data), press 'q' to continue... > ERROR: In /home/walker/src/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line > 344 > vtkXOpenGLRenderWindow (0xf083900): bad X server connection. > DISPLAY=ERROR: In > /home/walker/src/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line 344 > vtkXOpenGLRenderWindow (0xf083900): bad X server connection. > DISPLAY=ERROR: In > /home/walker/src/VTK/Rendering/vtkXOpenGLRenderWindow.cxx, line 344 > vtkXOpenGLRenderWindow (0xf083900): bad X server connection. > DISPLAY=[0]PETSC ERROR: > ------------------------------------------------------------------------ > [0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, > probably memory access out of range > [0]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger > [0]PETSC ERROR: or see > http://www.mcs.anl.gov/petsc/petsc-as/documentation/troubleshooting.html#Signal[0]PETSC > ERROR: or try http://valgrind.org on linux or man libgmalloc on Apple to > find memory corruption errors > [0]PETSC ERROR: likely location of problem given in stack below > [0]PETSC ERROR: --------------------- Stack Frames > ------------------------------------ > [0]PETSC ERROR: Note: The EXACT line numbers in the stack are not > available, > [0]PETSC ERROR: INSTEAD the line number of the start of the function > [0]PETSC ERROR: is given. > [0]PETSC ERROR: --------------------- Error Message > ------------------------------------ > [0]PETSC ERROR: Signal received! > [0]PETSC ERROR: > ------------------------------------------------------------------------ > [0]PETSC ERROR: Petsc Release Version 3.0.0, Patch 8, Fri Aug 21 14:02:12 > CDT 2009 > [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. > > ======================================== > > If I run it on the actual linux box, then there is no problem. The reason > it doesn't work in the other case is that there is no display (duh). Is > there a way to make dolfin just output a message if there is no display, > instead of that giant error message?
It might be possible to detect this in Viper. What does Ola think? In the meantime, try setting the environment variable DOLFIN_NOPLOT to disable plotting: export DOLFIN_NOPLOT=1 -- Anders
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