<html>#2487: *_evolution_method = "LeanBSSNMoL" in Lean does nothing
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<tr><td style='text-align:right'> Reporter:</td><td>Gabriele Bozzola</td></tr>
<tr><td style='text-align:right'> Status:</td><td>open</td></tr>
<tr><td style='text-align:right'>Milestone:</td><td></td></tr>
<tr><td style='text-align:right'> Version:</td><td>development version</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>
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<p>Comment (by Gabriele Bozzola):</p>
<p>What I mean is that currently if you set <code>evolution_method = LeanBSSNMoL</code> you get the evolution of the metric, lapse, and shift. With the behavior I describe, one must set <code>evolution_method = LeanBSSNMoL, shift_evolution_method = LeanBSSNMoL, lapse_evolution_method = LeanBSSNMoL</code> to achieve the same evolution. If the other two are not explicitly set, their default value will be <code>zero</code> if I remember correctly. This is a breaking change because currently one doesn’t need to specify the other two evolution methods currently, so if one didn’t specify them, with the new version the evolution will be different.</p>
<p>--<br/>
Ticket URL: <a href='https://bitbucket.org/einsteintoolkit/tickets/issues/2487/_evolution_method-leanbssnmol-in-lean-does'>https://bitbucket.org/einsteintoolkit/tickets/issues/2487/_evolution_method-leanbssnmol-in-lean-does</a></p>
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