Hi Stan, Apologies for the delayed response. Sounds like you could be having some trouble with the multi-level static condensation when combined with the periodic BCs. You could try, in your SOLVERINFO tag: <I PROPERTY="GlobalSysSoln" VALUE="DirectStaticCond" /> and see if that works out? If that works I can try and look into why the multi-level is failing. Cheers, Dave On 4 Jun 2015, at 18:45, Stanisław Gepner <sgepner@meil.pw.edu.pl> wrote:
Hi,
I think I found a problem when importing Gmsh meshes into Nektar. This happens if I try to use the coupled solver and the periodic BC. Works with VelocityCorrection, or if BC are standard D / N.
What I do: 1. Using the geometry in channel.geo create a mesh in Gmsh. This is a rectangular channel. I use Transfinite and Recombine to get a structured quad mesh. 2. I use MeshConvert with paralign to generate the channel.xml 3. If run with the attached cond2D.xml Nektar fails in AssemblyMap.cpp line 284, with "These values should never be the same"
The problem is persistent with other recombined/transfinite meshes.
If any of you is aware of how I could try to avoid the problem, I would be obliged.
Regards, Stan Gepner
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