Sounds very useful, will check it out once the next patch is out, thanks! Dominik
On Fri, Dec 30, 2011 at 11:11 PM, Barry Smith <bsmith at mcs.anl.gov> wrote: > > ? I have added to Petsc-dev VecValidValues() that will check that input and > output vector values for many commonly used routines such as PCApply() have > only valid entries to simplify tracking down these kinds of problems. > > ? ?Barry > > On Dec 30, 2011, at 8:52 AM, Jed Brown wrote: > >> 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. >
