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

[Xuefei (Rebecca) Yuan]

> On Thu, Jan 26, 2012 at 23:05, Xuefei Yuan <xyuan at lbl.gov> wrote:
> Moreover, When I use valgrind with --leak-check=yes --track-origins=yes, there are 441 errors from 219 contexts in PetscInitialize() before calling SNESSolve(). Is this normal for dev?
> 
> Are you using Open MPI? MPICH2 should be clean or nearly so, provided the system libraries are okay.

no, I do not think so.

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