[petsc-users] Error with parallel solve

Balay, Satish balay at mcs.anl.gov
Mon Apr 8 14:39:37 CDT 2019


On Mon, 8 Apr 2019, Manav Bhatia via petsc-users wrote:

> 
> 
> > On Apr 8, 2019, at 2:19 PM, Stefano Zampini <stefano.zampini at gmail.com> wrote:
> > 
> > You can circumvent the problem by using a sequential solver for it. There's a command line option in petsc as well as API that allows you to do so. -mat_mumps_icntl_13 1
> 
> Stefano, 
> 
>   Do you know if there is a performance penalty to using this option as opposed to fixing it with the patch? 

If would suggest first trying both the fixes if see either of them work for you.

Satish


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