<html>#2449: NewRad cannot be used with Cartoon2D due to 1 interior point only
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<tr><td style='text-align:right'> Reporter:</td><td>Roland Haas</td></tr>
<tr><td style='text-align:right'> Status:</td><td>new</td></tr>
<tr><td style='text-align:right'>Milestone:</td><td></td></tr>
<tr><td style='text-align:right'> Version:</td><td></td></tr>
<tr><td style='text-align:right'> Type:</td><td>bug</td></tr>
<tr><td style='text-align:right'> Priority:</td><td>major</td></tr>
<tr><td style='text-align:right'>Component:</td><td>EinsteinToolkit thorn</td></tr>
</table>
<p>NewRad will extrapolate into any boundary region where at least one face is marked as a physical output boundary. </p>
<p>This makes it impossible to use with Cartoon2D (and Cartoon2D’s tests fail if one tries) since Cartoon2D runs have only a single interior point that could be used as a source for extrapolation.</p>
<p>Pull request:</p>
<p><a data-is-external-link="true" href="https://bitbucket.org/einsteintoolkit/einsteinevolve/pull-requests/14/newrad-do-not-extrapolate-into-symmetry" rel="nofollow">https://bitbucket.org/einsteintoolkit/einsteinevolve/pull-requests/14/newrad-do-not-extrapolate-into-symmetry</a></p>
<p>changes this so that NewRad does not interpolate into any region where at least one face is a symmetry boundary.</p>
<p>This assumes:</p>
<ul>
<li>symmetry boundaries are applied afterwards (likely since NewRad is triggerd by user code only in <code>CCTK_INITIAL</code> and not a boundary condition)</li>
<li>the symmetry boundary conditions can fill in edges and corners where physical and symmetry boundaries overlap (true for the ones in the ET)</li>
</ul>
<p></p>
<p>--<br/>
Ticket URL: <a href='https://bitbucket.org/einsteintoolkit/tickets/issues/2449/newrad-cannot-be-used-with-cartoon2d-due'>https://bitbucket.org/einsteintoolkit/tickets/issues/2449/newrad-cannot-be-used-with-cartoon2d-due</a></p>
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