[petsc-users] The default nonzero pattern for SuperLU_dist.

Barry Smith bsmith at mcs.anl.gov
Wed Aug 31 16:42:41 CDT 2011


On Aug 31, 2011, at 4:40 PM, Xuefei (Rebecca) Yuan wrote:

> Hello all,
> 
> Is the default nonzero pattern for SuperLU_dist is SAME_NONZERO_PATTERN?

   There is no default nonzero pattern. You always must set it when you call KSPSetOperators() or in your SNES FormFunction. The PETSc SUPERLU_dist interface allows either pattern and should work correctly.


    Barry

> 
> Thanks!
> 
> Best,
> 
> Rebecca
> 



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