On Wed, Jun 29, 2011 at 12:46 PM, Omar Al-Abbasi <[email protected]> wrote:
> Hi,
>
> I am using Libmesh with Slepc for solving the eigen system that I have. I
> know that in Slepc there is an option to search for eigenvalues around
> specific target (say eigenvalues around 0.75), so is there a way in Libmesh
> to specify this target rather than setting the position of the spectrum to
> Largest or Smallest?

You can probably use SLEPc's command line arguments (-st_type sinvert)
to shift the spectrum by 0.75 (-st_shift .75) and then use
SMALLEST_MAGNITUDE.

-- 
John

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