Search found 9 matches

by Clemens
13 Dec 2018, 15:32
Forum: Elmer/Ice
Topic: Elmer/Ice performance degradation Haswell to KNL CPUs
Replies: 0
Views: 1561

Elmer/Ice performance degradation Haswell to KNL CPUs

Howdy fellow Elmer/Ice Users, I have a short question to experienced HPC Elmer users. The HPC I am running on has recently introduced a new many-core cluster with KNL CPUs. I have compiled Elmer/Ice with its dependencies and it runs smoothly. However, in comparison to the older cluster that uses "Ha...
by Clemens
16 May 2018, 18:02
Forum: Elmer/Ice
Topic: GL dynamics and Stokes in Elmer v8.3
Replies: 2
Views: 1484

Re: GL dynamics and Stokes in Elmer v8.3

I know a bit late. But rather late than never.

No not at the moment. We have a setup for it that works and gives the same results as NS, but are waiting to get more cores to run it on :) Will certainly update our versions to latest Elmer version.
by Clemens
20 Feb 2018, 09:54
Forum: Elmer/Ice
Topic: Changes to parstokes Solver?
Replies: 6
Views: 2785

Re: Changes to parstokes Solver?

A little late, but thanks for the info and the quick fix. All works well again.

Cheers, Clemens
by Clemens
12 Feb 2018, 10:25
Forum: Elmer/Ice
Topic: Changes to parstokes Solver?
Replies: 6
Views: 2785

Re: Changes to parstokes Solver?

Hi Juha,

Thanks for the quick response. Could you give this thread a bump once this has been updated in 'devel'?

Cheers, Clemens
by Clemens
05 Feb 2018, 15:25
Forum: Elmer/Ice
Topic: Changes to parstokes Solver?
Replies: 6
Views: 2785

Re: Changes to parstokes Solver?

Hi Peter,

So here is a test case Thomas presented at the last Elmer/Ice course that used to work without problems, but now crashes with a segfault.

Cheers, Clemens
by Clemens
02 Feb 2018, 18:48
Forum: Elmer/Ice
Topic: Changes to parstokes Solver?
Replies: 6
Views: 2785

Changes to parstokes Solver?

Hi y'all I updated to a newer code version of Elmer a few days ago and wanted to start optimising my Par-Stokes set-up. With the old version the code runs smoothly, but with the newer version it only works if I comment out the line Element = "p:1 b:4" in all three solvers. However doing this made th...
by Clemens
19 Dec 2017, 18:02
Forum: Elmer/Ice
Topic: ParStokes for sheet-shelf and basal sliding
Replies: 3
Views: 2098

Re: ParStokes for sheet-shelf and basal sliding

Hi all, just for people who'll come across the same problem in the future. It is indeed necessary to change a line in USF_Contact.f90. Instead of VarSurfResidual => VariableGet (Model % Mesh % Variables, 'Flow Solution Loads', UnFoundFatal=UnFoundFatal) It needs to be changed to VarSurfResidual => V...
by Clemens
14 Dec 2017, 20:11
Forum: Elmer/Ice
Topic: ParStokes for sheet-shelf and basal sliding
Replies: 3
Views: 2098

Re: ParStokes for sheet-shelf and basal sliding

OK I did some digging. So the segfault came from the USF_sliding user function, where it wantst the Flow Solver Name. If none is set in the solver section, it is set to Flow Solution. By setting Flow Solver Name = String "FlowVar" in the ParStokes solver section this segfault went away. The solver i...
by Clemens
13 Dec 2017, 16:45
Forum: Elmer/Ice
Topic: ParStokes for sheet-shelf and basal sliding
Replies: 3
Views: 2098

ParStokes for sheet-shelf and basal sliding

Hi all, I’m trying to set up the ParStokes solver for a 3D sheet-shelf simulation. I’ve got it running with no basal sliding under the sheet, but when I turn on basal sliding it gives me a segmentation fault. The culprit appears to be the UserFunction "SlideCoef_Contact". When I comment the lines ou...