[petsc-dev] does petsc filter out zeros in MatSetValues?

[Jed Brown]

On Thu, Jan 26, 2012 at 20:24, Mark F. Adams <mark.adams at columbia.edu>wrote:

> No, I can't imagine how, but there are several moving parts here.  I'm not
> sure about this issue.
>
> I did start getting an error on a malloc in MatSetValues - this is new
> right?
>

Yes, this is an experiment, we are setting MAT_NEW_NONZERO_ALLOCATION_ERR
by default if you preallocate. You can set the option to false if you are
intentionally not preallocating correctly.
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