<html>#2648: Empty ApplyBCs call in LeanBSSNMoL
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<tr><td style='text-align:right'> Reporter:</td><td>Samuel Cupp</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>Comment (by helvi witek):</p>
<p>So, for full disclosure let me copy here the email conversion with Sam, Miguel and myself (apologies for email formatting):</p>
<p>It sounds like you would want something like LeanBSSN_Boundaries running before that. However, looking at that function I see quite a lot of grid functions in it. Do you want all of them to run? If you only want gammat you'll (unfortunately) probably need another function with just it. However, it's probably fine to apply symmetry conditions to the other grid functions (gconf_fac, hmetric, hcurv, trk, lapse, shift). Again, I wouldn't support that if it was in the evolution loop, but a few extra symmetry BCs in initial shouldn't really matter for speed unless its a very short run.</p>
<p>Also, keep in mind that I haven't actually put in any prints inside CartGrid3D and am going purely off of looking at the code. You may want to see if anything is actually being applied before changing the code or scheduling. I just thought it looked incorrect and thought you might want to check it out.</p>
<p>I had started a <a data-is-external-link="true" href="https://urldefense.com/v3/__https://bitbucket.org/einsteintoolkit/tickets/issues/2648/empty-applybcs-call-in-leanbssnmol__;!!DZ3fjg!6P26S95OCIvFzHEpeRaPwr1L--HAnDJ1YZkznnTYju2mUnmF4BFyhBSMC27VrFe5KT2fJdg7FHAtOhwpIIPr$" rel="nofollow">ticket</a> a while back, so we can use that if there's any changes you want to make or questions for the maintainers.</p>
<p>Samuel Cupp Postdoctoral Researcher<br>
Department of Physics University of Idaho</p>
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<p><strong>From:</strong> Miguel Zilhão <<a data-is-external-link="true" href="mailto:mzilhao@ua.pt" rel="nofollow">mzilhao@ua.pt</a>><br>
<strong>Sent:</strong> Saturday, January 21, 2023 3:05 AM<br>
<strong>To:</strong> Cupp, Samuel D. <<a data-is-external-link="true" href="mailto:scupp1@my.apsu.edu" rel="nofollow">scupp1@my.apsu.edu</a>>; Helvi Witek <<a data-is-external-link="true" href="mailto:hwitek@illinois.edu" rel="nofollow">hwitek@illinois.edu</a>><br>
<strong>Su
<p>--<br/>
Ticket URL: <a href='https://bitbucket.org/einsteintoolkit/tickets/issues/2648/empty-applybcs-call-in-leanbssnmol'>https://bitbucket.org/einsteintoolkit/tickets/issues/2648/empty-applybcs-call-in-leanbssnmol</a></p>
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