[Trilinos-Users] Parallel memory problem in ML?

[Paul Dionne]

  Hi,

I am new to Trilinos - I just started working with the the 
Trilinos/Petsc interface, with Trilinos version 10.4.1 and Petsc 3.0.0.  
I started with the Trilinos/Petsc example given at:

http://trilinos.sandia.gov/packages/docs/dev/packages/epetraext/doc/html/epetraext_petsc_cpp.html

and have been modifying it for my testing purposes.  I'm running a 
fairly small problem that takes about 0.4% of the machine memory, but 
when I run ML in parallel after 20 iterations or so I am up to 100% 
memory on all machines.  I have narrowed it down to the ML 
preconditioner, and I have also found that if I use Petsc as the 
smoother ("-petsc_smoother" option) the problem does not show up.

Is this a known problem?  Is there anything else I can try?

Thanks,

Paul Dionne

-- 
Paul J. Dionne
CFD Research Corporation
215 Wynn Drive, 5th floor
Huntsville, Al  35805
(256) 726-4837
http://www.cfdrc.com

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