[petsc-users] Pastix with Petsc and Slepc

venkatesh g venkateshgk.j at gmail.com
Wed May 27 06:08:04 CDT 2015


Yes. I did try on a single core. It gives same error for any size of the
matrix.

PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably
memory access out of range

Kindly let me know.

Venkatesh

On Wed, May 27, 2015 at 2:07 AM, Matthew Knepley <knepley at gmail.com> wrote:

> Have you tried on a single process?
>
>   Thanks,
>
>     Matt
>
> On Tue, May 26, 2015 at 7:01 AM, venkatesh g <venkateshgk.j at gmail.com>
> wrote:
>
>> Hi I am trying to solve my eigenproblem Ax=lambdaBx with a direct linear
>> solver Pastix
>>
>> However I get this error (attached). It works without the pastix option.
>>
>> My matrices are in binary format.
>>
>> I gave the command : aprun -n 24 -N 24 ./ex7 -f1 a20t -f2 b20t -st_type
>> sinvert -eps_nev 3 -log_summary -st_ksp_type preonly -st_pc_type lu
>> -st_pc_factor_mat_solver_package pastix -ksp_monitor
>>
>> Kindly help me out.
>>
>> Venkatesh
>>
>
>
>
> --
> 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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