Re-Gold tests affected by new libMesh Lagrange Dirichlet interpolation

grinsfem / grins

Multiphysics Finite Element package built on libMesh

http://grinsfem.github.io

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Re-Gold tests affected by new libMesh Lagrange Dirichlet interpolation #597

Closed roystgnr closed 4 years ago

roystgnr commented 4 years ago

In https://github.com/libMesh/libmesh/pull/2588 libMesh changed from local projection to interpolation of Dirichlet boundaries on Lagrange elements, for performance reasons. These three tests all use Dirichlet boundaries with discontinuities on quadratic Lagrange elements, leading to slightly different answers with newer libMesh versions.