After updating to Petsc 3.3 (and the new libMesh... so it's not clear where
the error is). One of our fancier preconditioning routines that relies on
matrices added using system.add_matrix() calls is failing when we try to
apply the preconditioner with an error that says:
[0]PETSC ERROR: PCSetOperators() line 1049 in src/ksp/pc/interface/precon.c
Cannot change local size of Amat after use old sizes 9 9 new sizes 25 25
This is in an adaptivity problem that starts out with 2x2 quads (hence the
9x9 nature of the original matrix) and is being adapted (25x25 sounds
right).
Anyone seen this before? Is this some new checking in PETSc that is
getting tripped... or is libMesh possibly not resizing these matrices
correctly?
I'll provide more information as I have it... I just thought I would see if
anyone had run into this before I get too deep in here...
Derek
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