<div dir="ltr"><div><span style="font-family:arial,sans-serif"><font size="2">Dear all,</font></span></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2">I am having issues with the thorn Outflow running a BHB simulation with WhiskyMHD (parfile attached). Outflow correctly computes the flows on the single orbiting BHs during the inspiral, but after the merger it fails to compute it on the newly formed BH. <br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2">I get the following warning in the .out:</font></span></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2">WARNING level 1 from host <a href="http://r149c18s02.marconi.cineca.it">r149c18s02.marconi.cineca.it</a> process 0<br>  while executing schedule bin CCTK_ANALYSIS, routine Outflow::outflow<br>  in thorn Outflow, file /marconi/home/userexternal/fcattori/EinsteinToolkit/ET_2018_09/Cactus/arrangements/EinsteinAnalysis/Outflow/src/outflow.c:958:<br>  -&gt; didn&#39;t find valid detector surface for sn=2, det=2</font></span></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2">In my parfile I implement Outflow as</font></span></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2">outflow::compute_every        = 64                                        <br>outflow::num_detectors        = 3                                        <br>outflow::surface_index[0]     = 0                                        <br>outflow::surface_index[1]     = 1                                        <br>outflow::surface_index[2]     = 2                                        <br>outflow::interpolator_name    = &quot;Lagrange polynomial interpolation&quot;     <br>outflow::interpolator_pars    = &quot;order=4&quot;                                <br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2">AHFinderDirect uses three spherical surfaces (n. 0,1,2). PunctureTracker tracks and write its values on n. 0 and 1.</font></span></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div><div><pre><span style="font-family:arial,sans-serif"><font size="2">Does anyone know how to address this issue?<br><br></font></span></pre><pre><span style="font-family:arial,sans-serif"><font size="2">Thanks a lot,<br><br></font></span></pre><pre><span style="font-family:arial,sans-serif"><font size="2">Federico<br></font></span></pre></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div><div><span style="font-family:arial,sans-serif"><font size="2"><br></font></span></div></div>