dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

Ola Skavhaug wrote:
> Garth N. Wells skrev den 11/07-2008 følgende:
> > Ola Skavhaug wrote:
> > > Garth N. Wells skrev den 10/07-2008 følgende:
> > > > When I have MPI installed and configure DOLFIN with either PETSc or  
> > > > Trilinos, I get a bunch of errors when plot() is called (see below).
> > > > A plot appears as expected, followed by the error messages. Looks 
> > > > like a Viper issue (?).
> > > As far as I know, there shouldn't be any MPI calls in viper/VTK. I have
> > > absolutely no idea what causes this error.
> > >
> > > Did you compile VTK with MPI? Could you report the output of this commando on
> > > the shared vtk-libraries:
> > > objdump -R /usr/lib/libvtk*.so  | grep MPI
> > I didn't build VTK. I'm using the package. From objdump I get
> >
> > > objdump -R /usr/lib/libvtk*.so  | grep MPI
> > 000fc960 R_386_JUMP_SLOT  
> > _ZN24vtkDistributedDataFilter15MPIRedistributeEP10vtkDataSetS1_
> >
> > Garth
>
> OK, then we have the vtk. As you can see, no MPI stuff is going on in viper,
> and the MPI_Attr_get does not live in vtk. I have a similar problem now when I
> try to combine dolfin with petsc bindings and the PyCC bindings to a serial
> build of HYPRE. The problems are likely to be caused by some dummy MPI calls
> in HYPRE that are mixed with the non-dummy versions of MPI in dolfin/PETSc.
> I don't know what causes the problem you describe.
>
> Can you give a more elaborate description of your system build + which
> problems that fail?

Fresh clone of dolfin-dev

  ./scons.local enablePetsc=yes enableTrilinos=no enableMpi=yes

Running the Poisson demo in demo/pde/poisson/cpp/ and I get the 
MPI-related error messages. I get the same messages running 
demo/pde/poisson/python/demo.py.

I'm using OpenMPI 1.2.6 which I built and installed, and the Ubuntu 8.04 
VTK packages.

Garth


> Ola
>
> > > Ola
> > >
> > >  
> > > > Garth
> > > >
> > > > Plotting Function, press q to continue...
> > > > *** An error occurred in MPI_Attr_get
> > > > *** after MPI was finalized
> > > > *** MPI_ERRORS_ARE_FATAL (goodbye)
> > > > [gnw20pc:3330] Abort before MPI_INIT completed successfully; not able 
> > > > to guarantee that all other processes were killed!
> > > > *** An error occurred in MPI_Comm_rank
> > > > *** after MPI was finalized
> > > > *** MPI_ERRORS_ARE_FATAL (goodbye)
> > > > *** An error occurred in MPI_Type_free
> > > > *** after MPI was finalized
> > > > *** MPI_ERRORS_ARE_FATAL (goodbye)
> > > > Segmentation fault
> > > > Unable to plot (PyDOLFIN or Viper plotter not available).
> > > > Saved function u (discrete function) to file poisson.pvd in VTK format.
> > > > _______________________________________________
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> > > > DOLFIN-dev@xxxxxxxxxx
> > > > http://www.fenics.org/mailman/listinfo/dolfin-dev