DA with imposed parallel decomposition

Matthew Knepley knepley at gmail.com
Wed Sep 23 07:33:02 CDT 2009

Since it just inserts a point on every edge and face (in 2D), I do not see
why it would fail. Does it?


On Wed, Sep 23, 2009 at 12:04 AM, Dave May <dave.mayhem23 at gmail.com> wrote:

> Hello,
>   Suppose I have a DA and I enforce the parallel decomposition during
> creation by specifying the arrays lx[], ly[], lz[] in DACreate3d(). If I now
> create a second DA using DARefine(), am I alays also able to obtain an
> interpolation operator between the two DA's via DAGetInterpolation()?
> Under what circumstance will DAGetInterpolation() fail when used between
> DA's generated in this manner?
> Cheers,
>   Dave

What most experimenters take for granted before they begin their experiments
is infinitely more interesting than any results to which their experiments
-- Norbert Wiener
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