[petsc-users] Index set with zero size

[Jed Brown]

On Tue, Nov 9, 2010 at 15:43, Tim Kroeger
<tim.kroeger at cevis.uni-bremen.de>wrote:

> Okay, I implemented a workaround on user side (using a temporary vector and
> MatMult()).  This seems to resolve the problem now.  I'll leave it like this
> in the libMesh part, so that libMesh remains compatible with PETSc-3.1-p4.
>  Nevertheless, if you fix this within a few days and launch PETSc-3.1-p5
> with this fix (or just send me a patch), let me know, I can then test it.


I fixed this, and also a bug with nontrivial MatDiagonalScale after
MatGetSubMatrix.  You can get it from hg, or in the next patch level (I
don't know when that will be).

Jed
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