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

Thu Jan 26 20:24:51 CST 2012

On Jan 26, 2012, at 8:06 PM, Jed Brown wrote:

> On Thu, Jan 26, 2012 at 19:00, Mark F. Adams <mark.adams at columbia.edu> wrote:
> I'm guessing that PETSc recently changed and now filters out 0.0 in MatSetValues ... is this true?
> 
> Did the option MAT_IGNORE_ZERO_ENTRIES get set somehow?

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?
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