The Hilbert one isn't too bad, occasionally there are a few disconnected
regions. In the 15 proc graph there is one disconnected region in the
lower left quadrant.
On Thu, Nov 7, 2013 at 2:51 PM, Kirk, Benjamin (JSC-EG311) <
benjamin.k...@nasa.gov> wrote:
> I think the Morton ordering is not amenable to just linear cutting, which
> is essentially what we're doing.
> http://en.wikipedia.org/wiki/Z-order_curve
>
> Maybe we should be splicing it up some other way?
>
> I'm not sure I see anything *wrong* with the hilbert result, but some are
> definitely worse than others
>
> The metis stuff: wow!
>
> There are options that can get passed into the partitioner, and we are
> leaving them as defaults. Probably worth playing with some of those…
>
> -Ben
>
>
>
> On Nov 7, 2013, at 3:34 PM, Cody Permann <codyperm...@gmail.com>
> wrote:
>
> > I'm seeing some less than optimal partitioning for several processor
> counts using both Metis and Hilbert SFC. Also from what I can tell, Morton
> SFC is completely broken. I realize that I'm splitting a small mesh among
> a lot of processors, but the behavior is still pretty bad.
> >
> > The following pictures are using mesh generation (16x16), no refinement:
> >
> https://drive.google.com/folderview?id=0B8csupg5nQaady14UFZjVUMzSm8&usp=sharing
> >
> ------------------------------------------------------------------------------
> > November Webinars for C, C++, Fortran Developers
> > Accelerate application performance with scalable programming models.
> Explore
> > techniques for threading, error checking, porting, and tuning. Get the
> most
> > from the latest Intel processors and coprocessors. See abstracts and
> register
> >
> http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk_______________________________________________
> > Libmesh-devel mailing list
> > Libmesh-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/libmesh-devel
>
>
------------------------------------------------------------------------------
November Webinars for C, C++, Fortran Developers
Accelerate application performance with scalable programming models. Explore
techniques for threading, error checking, porting, and tuning. Get the most
from the latest Intel processors and coprocessors. See abstracts and register
http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk
_______________________________________________
Libmesh-devel mailing list
Libmesh-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/libmesh-devel
