[Trilinos-Users] Rythmos 1D FEM example fails to run in parallel
Bartlett, Roscoe A
rabartl at sandia.gov
Tue Feb 9 13:10:54 MST 2010
Slaven,
>From looking at:
packages/rythmos/example/epetra/1Dfem/CMakeLists.txt
And:
http://trilinos.sandia.gov/cdash/viewTest.php?onlypassed&buildid=205481
it does not appear that this example was meant to run in parallel.
- Ross
> -----Original Message-----
> From: trilinos-users-bounces at software.sandia.gov [mailto:trilinos-
> users-bounces at software.sandia.gov] On Behalf Of Peles, Slaven Export
> License Required - US UTRC
> Sent: Tuesday, February 09, 2010 12:09 PM
> To: trilinos-users at software.sandia.gov
> Subject: [Trilinos-Users] Rythmos 1D FEM example fails to run in
> parallel
>
> Hi,
>
> I wonder if anyone successfully ran Rythmos 1D FEM example in parallel?
> (packages/rythmos/example/epetra/1Dfem, version 10.0.4)
>
> I compiled this example on a Linux box with 8 cpu cores. The code runs
> fine on one cpu; when I run it on 2-4 cpus the results come with a
> large error compared to the "exact" solution and computation diverges
> if I try to run it on a larger number of cpus. I tried adaptive BDF and
> fixed step backward Euler methods, with and without NOX, and with
> different tolerances, but the same problem occurs.
>
> If anyone has a suggestion how to troubleshoot this, please let me
> know. Also, let me know if you want me to supply any additional
> information.
>
> Thanks,
> --
> Slaven Peles
>
>
>
>
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