[Trilinos-Users] [trilinos-users] Segmentation fault in stratimikos example

Bartlett, Roscoe A rabartl at sandia.gov
Fri Jul 11 23:59:37 MDT 2008


I would suggest that you configure with --enable-teuchos-debug and then compile and run again.  This might help catch the problem.  Also, if you are running on Linux, you can run valgrind to diagnose the error.

One question, when you type 'make runtests-serial', do all of the stratimikos tests pass?

- Ross

Dr. Roscoe A. Bartlett
Senior Member of the Technical Staff
Sandia National Laboratories
Phone: (505) 275-6147

From: trilinos-users-bounces at software.sandia.gov [mailto:trilinos-users-bounces at software.sandia.gov] On Behalf Of Dane Wallinga
Sent: Friday, July 11, 2008 10:44 PM
To: trilinos-users at software.sandia.gov
Subject: [Trilinos-Users] [trilinos-users] Segmentation fault in stratimikos example

I'm relatively new to Trilinos, and c++ for that matter, and I've been encountering some problems while working with the simple_stratimikos_example in Stratimikos. Running the compiled .exe, I receive a segmentation fault when I try to specify Belos as the linear solver in the parameters xml. Is there any obvious reason why Belos would cause such an error where Amesos and AztecOO do not?  Still more puzzling is the situation that arises when I modify the example to use initialize the linear system from a CrsMatrixGallery rather than a .mtx file; the problems with Belos persist, but now I receive faults with Ameses and AztecOO as well.  What's puzzling is that the program does successfully return a solution, only throwing the Segmentation Fault when it comes time to output "_ of the tests checked out"  While I'm sure this description is a bit vague, it would help debugging if I at least had some idea of what kind of segmentation fault would arise that doesn't significantly affect the program output.

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