[petsc-users] Pastix with Petsc and Slepc

[Matthew Knepley]

On Wed, May 27, 2015 at 6:08 AM, venkatesh g <venkateshgk.j at gmail.com>
wrote:

> 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
>

Run on a single core with the debugger, -start_in_debugger, and get the
stack trace using 'where'.

  Thanks,

     Matt


> 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
>>
>
>


-- 
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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20150527/80e18183/attachment.html>