[petsc-users] a quick question about index out of range in MatSetValues

[Panruo Wu]

Dear list,

I read in the MatSetValues documentation and found that

Negative indices may be passed in idxm and idxn, these rows and columns are
> simply ignored


I wonder if it's still the case when passing row or column indices larger
than matrix dimensions.
If it's true it's very handy to assemble matrix of homogeneous dirichlet
boundary condition.

Thanks,
Robb
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