On May 8, 2013, at 7:54 AM, Peter Brune <prbrune at gmail.com> wrote:
> DMGetCoordinateDM is, however, collective. Looking deeper, it is created
> only when used, but setting uniform coordinates is using it. We might want
> to be more upfront about this. It's probably not their problem.
You guys are speculating too much. Create a DMDA characteristic for their
code with reasonably large array dimensions and then -malloc_dump it (or
something similar) to find out where the memory actually is. Then given this
table of sizes propose changes, not before.
Barry
>
>
> On Wed, May 8, 2013 at 7:50 AM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
> Peter Brune <prbrune at gmail.com> writes:
>
> > The coordinate DM also is automatically created and has dim fields in its
> > vectors, making it far more heavyweight than a scalar problem. It should
> > definitely be something that's lazily evaluated.
>
> DMGetCoordinates() is currently labeled "Not Collective".
>
