On Fri, Dec 30, 2011 at 08:39, Dominik Szczerba <dominik at itis.ethz.ch>wrote:
> I am getting the below error with fgmres. I was wondering how to start > debugging the problem. All the values in the matrix and rhs seem fine. > Any suggestions are very welcome. > I suspect your custom preconditioner is computing NaN for the call to the inner solver. Run with -fp_trap -start_in_debugger to see where NaN was first generated. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20111230/599490e0/attachment.htm>
