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I have not tried with the latest version yet. I found this problem in v3.7.7. I'll try that and let you know.
<div>If the problem is still there, I'll send you an example.</div>
<div>Thanks for the help,</div>
<div>Simone<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Smith, Barry F. <bsmith@mcs.anl.gov><br>
<b>Sent:</b> Friday, April 13, 2018 10:52:13 AM<br>
<b>To:</b> Rossi, Simone<br>
<b>Cc:</b> petsc-users@mcs.anl.gov<br>
<b>Subject:</b> Re: [petsc-users] FIELDSPLIT preconditioner in parallel</font>
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1) Is this with the latest PETSc? some of these issues may have been fixed.<br>
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2) Please send use something that reproduces the problem and we will fix it. We aren't aware of this problem.<br>
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Barry<br>
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> On Apr 13, 2018, at 9:50 AM, Rossi, Simone <srossi@email.unc.edu> wrote:<br>
> <br>
> Hello,<br>
> 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!).<br>
> 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?<br>
> Thanks a lot for the help,<br>
> Simone<br>
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