[petsc-users] test failed on 2 processes and segmentation fault while initializing in deal.II

[Matthew Knepley]

On Fri, Aug 5, 2011 at 2:56 AM, huyaoyu <huyaoyu1986 at gmail.com> wrote:

> Satish,
>
> Yes, PETSc outputs the fortran warings when I invoke "make test". As you
> said, I will just ignore them. But it also says that "Error detected
> during compile or link".
>
> =========PETSc output while testing=======
> huyaoyu at ubuntu:~/Downloads/petsc-3.1-p8$ make
> PETSC_DIR=/home/huyaoyu/Downloads/petsc-3.1-p8
> PETSC_ARCH=linux-gnu-c-debug test
> Running test examples to verify correct installation
> C/C++ example src/snes/examples/tutorials/ex19 run successfully with 1
> MPI process
> C/C++ example src/snes/examples/tutorials/ex19 run successfully with 2
> MPI processes
> --------------Error detected during compile or
> link!-----------------------
> ... OTHER STUFF AND FORTRAN WARNINGS...
> Fortran example src/snes/examples/tutorials/ex5f run successfully with 1
> MPI process
> Completed test examples
> =========End of PETSc output while testing==
>
> So, I just ignore this. Is that OK?
>

Yes, it is just indicating that warning.

   Matt


> Thanks!
>
> HuYaoyu
>
> > > Thanks to Satish Balay and Jed Brown. Your advices are pretty good!
> > >
> > > I remove the petsc directory and deal.II directory. Re-build petsc and
> > > deal.II with the mpi installed system wide. The configuration lines are
> > > as follows:
> > >
> > > For PETSc:
> > > ./config/configure.py --with-cc=/usr/bin/mpicc
> --with-fc=/usr/bin/mpif90
> > > --download-f-blas-lapack=1 --with-shared
> > >
> > > For deal.II:
> > > ./configure --enable-shared --disable-threads --with-petsc=$PETSC_DIR
> > > --with-petsc-arch=$(PETSC_ARCH) --with-p4est=PATH-TO-P4EST --with-mpi
> > >
> > > I will use p4est for grid distribution and I checked the configure
> > > output of deal.II. The output says deal.II will use /usr/bin/mpicc for
> > > CC variable and /usr/bin/mpiCC for CXX variable. And deal.II says:
> > > =================deal.II configure output=========================
> > > checking for PETSc library
> > > directory... /home/huyaoyu/Downloads/petsc-3.1-p8
> > > checking for PETSc version... 3.1.0
> > > checking for PETSc library architecture... linux-gnu-c-debug
> > > checking for PETSc libmpiuni library... not found
> > > checking for consistency of PETSc and deal.II MPI settings... yes
> > > checking for PETSc scalar complex... no
> > > ================= end of deal.II configure output=================
> > >
> > > After the compilation of PETSc and deal.II, I tried to compile the
> > > specific example program of deal.II which will use PETSc. And
> everything
> > > works well. No segmentation error any more! Great!
> > >
> > > However, the test of PETSc trigger the same error while trying to
> > > perform task in 2 process. Is it because I am using PETSc on a single
> > > machine but not a cluster of computers?
> >
> > You mean the compiler warning for the fortan example in 'make test'?
> >
> > You can ignore that.
> >
> > Satish
>
>
>
>


-- 
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
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