Hello Bernd, we already tried replacing the solver by a sequential one, but it did not help. The solver did not converge. What else could be possible?
Best regards Am Mi., 2. Okt. 2019 um 12:00 Uhr schrieb < [email protected]>: > Send Dumux mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://listserv.uni-stuttgart.de/mailman/listinfo/dumux > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Dumux digest..." > > > Today's Topics: > > 1. Re: could not build any aggregates. Probably no connected > nodes (Flemisch, Bernd) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 2 Oct 2019 09:11:45 +0000 > From: "Flemisch, Bernd" <[email protected]> > To: "[email protected]" > <[email protected]> > Subject: Re: [DuMuX] could not build any aggregates. Probably no > connected nodes > Message-ID: <[email protected]> > Content-Type: text/plain; charset="iso-8859-1" > > I guess that the message comes from the AMG solver. You can try to replace > the LinearSolver by the UMFPackBackend to check if it really is a problem > with the AMG itself or if there is still something wrong from converting 2p > to 3p3c. > > > Kind regards > > Bernd > > > -- > _______________________________________________________________ > > Bernd Flemisch phone: +49 711 685 69162 > IWS, Universit?t Stuttgart fax: +49 711 685 60430 > Pfaffenwaldring 61 email: [email protected] > D-70569 Stuttgart url: www.hydrosys.uni-stuttgart.de > _______________________________________________________________ > ________________________________ > Von: Dumux <[email protected]> im Auftrag von Kai > Wendel <[email protected]> > Gesendet: Mittwoch, 2. Oktober 2019 11:05:38 > An: [email protected] > Betreff: [DuMuX] could not build any aggregates. Probably no connected > nodes > > Hello, > > by changing the initially 2p problem for geothermal simulation (made by > Samuel Scherrer) into a 3p3c problem and running it, the following error > messages occured: > "Solve: M deltax^k = rCould not build any aggregates. Probably no > connected nodes." > For more detailed output please look into output.txt. > We tried to change the solvers and to simplify the problem, but nothing > worked, we do not know, what the problem could be. > > Does anyone know about something about this message: "Could not build any > aggregates. Probably no connected nodes." ? > > Best wishes, > > Kai Wendel > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://listserv.uni-stuttgart.de/pipermail/dumux/attachments/20191002/f263cf0f/attachment-0001.html > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Dumux mailing list > [email protected] > https://listserv.uni-stuttgart.de/mailman/listinfo/dumux > > > ------------------------------ > > End of Dumux Digest, Vol 104, Issue 2 > ************************************* >
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