Re: [Libmesh-users] try-catch in a PETSc solve()

[Jed B. <je...@je...>]

"Salazar De Troya, Miguel" <sal...@ll...> writes:

> I ran the code with –info and got a quite lengthy output that I am attaching. For some reason, now the error is (last line of the attached output):

I'm still not sure what triggers the error and with the non-determinism
you seem to have just observed, I would start by ruling out memory
corruption.  Can you reproduce with a smaller problem size and/or fewer
processes?  Can you run with a memory checker (valgrind is easy but
slow, alternative is to compile your whole stack with gcc
-fsanitize=address)?

If those are clean, it would be faster if you can share code to
reproduce versus trying to operate a debugging session via email.  Can
you share code to reproduce, either on this list or to
pet...@mc... (private list with PETSc developers)?

> Linear Elasticity_ solve did not converge due to DIVERGED_PCSETUP_FAILED iterations 0
> PCSETUP_FAILED due to SUBPC_ERROR
>
> Not sure why, because I am not specifying any –sub_pc in my options. Which other messages should I look into?