[petsc-dev] [PATCH] set block size for jacobian difference matrix

[Robert Femmer]

When testing jacobian diffs via -snes_type test, block size is not 
explicitly set
during setup of the difference matrix B. This can cause problems when the
block size is explicitly set in the origin jacobian and is not derivable 
from local
matrix sizes, for instance on a single core. The patch sets block size 
explicitly.
The patch is trivial, and unfortunately includes the explicit naming of the
python version in the configure script. This ensures portability to 
linux distros
where the default python version is >=3.0 (e.g., arch linux).

Best Regards,
Robert Femmer
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