[Users] TwoPunctures data storage

[Erik Schnetter]

Alfred

Solving the equations is fast, the slow part is evaluating the
solution on the finite differencing grid. If you want to use the same
grid multiple times you can checkpoint the initial conditions. If you
want to use different grids, then you'll have to repeat the slow part
anyway.

There are ways to speed this up by sacrificing accuracy. I don't think
this makes sense if you want to obtain accurate waveforms, though.

-erik

On Wed, Mar 2, 2016 at 9:32 AM, Alfred Castro <alfredcastro6 at gmail.com> wrote:
> Hi,
>
> I am a master student at UIB, and starting to use the Einstein Toolkit
> for binary black hole evolutions.
>
> I am using the TwoPunctures thorn for solving the constraints. In
> order to speed up tests of grid structures, I would like to just solve
> on the spectral grid once, store the data in a file, and reread them
> for different evolutions (e.g. with different finite difference
> grids). It looks like this is not supported right now. Has anybody
> done this already?
>
> Thanks,
>
> --
> Alfred
>
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-- 
Erik Schnetter <schnetter at cct.lsu.edu>
http://www.perimeterinstitute.ca/personal/eschnetter/