[petsc-users] Changing a few entries in a matrix

[Jed Brown]

Ganesh Vijayakumar <ganesh.iitm at gmail.com> writes:
>   Can I overwrite any entries without incurring additional cost in memory?
> I currently use MatSetValue with the option INSERT_VALUES? Does Petsc have
> an option to OVERWRITE the existing value?

INSERT_VALUES is it, in contrast to ADD_VALUES.
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