[petsc-users] A question on "memory access out of range" in mpi running

[Matthew Knepley]

On Wed, Jun 1, 2011 at 11:47 AM, Alan Wei <zhenglun.wei at gmail.com> wrote:

> Hi guys,
>    I hope you're having a nice day.
>    I was trying to run ex29.c in src/ksp/ksp/example/tutorial. It is normal
> to go through without MPI. However, with the same grid size, if I run it
> with 4 processes with MPI, a error message of "Caught signal number 11 SEGV:
> Segmentation Violation, probably memory access out of range" will show up.
> Did anyone have this kind of issue before. I guess this is probably caused
> by the way I launched the 'mpiexec'. Any idea on it? The full error message
> is attached.
>    Thanks in advance.
>

No, there is some problem with the VTK output for that. You can comment it
out. I will look at fixing it.

  Matt


> best,
> Alan
>



-- 
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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