It looks like the problem was solved in one of the updates. I cannot reproduce 
that behavior with the latest PETSc. Thanks!

I'll let you know if it happens again.


From: Smith, Barry F. <>
Sent: Friday, April 13, 2018 10:52:13 AM
To: Rossi, Simone
Subject: Re: [petsc-users] FIELDSPLIT preconditioner in parallel

1) Is this with the latest PETSc? some of these issues may have been fixed.

2) Please send use something that reproduces the problem and we will fix it. We 
aren't aware of this problem.


> On Apr 13, 2018, at 9:50 AM, Rossi, Simone <> wrote:
> Hello,
> I'm trying to use PCFIELDSPLIT to solve a two by two block system and it is 
> working pretty nicely (thanks a lot for that!).
> I'm still having some issues in parallel though: the ksp solver throws an 
> error when one of the fields does not have DOFs  on a processor. Is there a 
> way  around it?
> Thanks a lot for the help,
> Simone

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