<div dir="ltr"><div><div><div>
<span class="gmail-im">></span> Anyway the FPE occurs in MatSolve_SeqAIJ_NaturalOrdering which usually indicates a zero on the diagonal of the matrix. Is that possible?
<br></div>It looks like this is indeed the case here. Thanks for the hint. <br><br></div><a class="gmail_plusreply" id="plusReplyChip-0" href="mailto:balay@mcs.anl.gov" tabindex="-1">@Satish Balay</a> : I tried building with the patch and don't see any difference. Do you want me to send you the config and build logs to investigate further? Apart from the -g flag, as I've stated above another bug is that petsc uses the system gdb (rhel-7) and not the gdb associated with the gcc that was used to build petsc. <br></div></div>