Sample mesh manager wrongly (?) assigns boundary labels to boundary

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#275 opened on Feb 22, 2024 3 comments 0 reactions 2 assignees View on GitHub

@dylan-copeland is already working on this.

Since Feb 26, 2024.

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Description

bug

Somehow SampleMeshManager seems to assign a boundary attribute of 1 to element boundaries in the domain. These are not a part of the boundary specified in the mesh. I think these are or 1) the element boundaries of the sample mesh or 2) elements on the boundary between partitions corresponding to MPI groups or 3) a combination of both.
I have verified that the boundary attribute is specified correctly in the input mesh and used correctly in the non-sampled (full order model) finite element space.

The result is that the boundary condition I have specified for boundary attribute 1 is applied randomly in the domain. I encountered this problem in a 3D problem and I did not see it in 2D problems (although it might be occurring there as well).
Is this a known problem? Ping @dylan-copeland

Dominant language: C++
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