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<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Dear Beyjann</div><div class=""><br class=""></div><div class="">From the output, it seems that the two stars just merged and then a prompt collapse to Black Hole. An Apparent Horizon was found. </div><div class=""><br class=""></div><div class="">INFO (AHFinderDirect): proc 0: searching for horizon 1/1</div><div class="">INFO (AHFinderDirect): AH 1/1: r=2.18345 at (-0.000000,0.000000,0.000000)</div><div class="">INFO (AHFinderDirect): AH 1/1: area=376.8755139 m_irreducible=2.738192857</div><div class=""> 5952 558.000 | 129.2759814 | 0.0003459 | 0.0000439 | 8.9127188 | 8.4903683 | 151.5039356 | 301.5059049</div><div class=""><br class=""></div><div class="">Dear Beyhan;</div><div class=""><br class=""></div><div class="">Quite likely just resolution.</div><div class=""><br class=""></div><div class="">But at the next iteration, AH finder was not able to find it again, and indeed the interior of the black hole was </div><div class="">not excised and conservative to primitive failed close to the singularity.</div><div class=""><br class=""></div><div class="">Resolution of dx=0.75 it is not enough for simulation, and leas dx=0.375 is needed for having running simulation</div><div class=""> when black hole form and at least 0.25 to have some useful data. </div><div class=""><br class=""></div><div class="">Roberto</div><div><br class=""><blockquote type="cite" class=""><div class="">On 14 Apr 2020, at 17:22, Beyhan Karakaş <<a href="mailto:beyhannkarakas@gmail.com" class="">beyhannkarakas@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">Dear to whom it may concern,</div><div class=""><br class=""></div><div class=""> I am using
Mayer release on Fedora 31. I have made some changes in the parameter
file that was created by De Pietri, Feo, Maione and Loeffler in 2016
(which could be downloaded from <a href="https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.fis.unipr.it%2Fnumrel%2FResearch%2FBNS2016.html&data=02%7C01%7Croberto.depietri%40unipr.it%7C9856f8be4a614c36092808d7e087c54c%7Cbb064bc5b7a841ecbabed7beb3faeb1c%7C0%7C0%7C637224746075422862&sdata=dwMfDo1WyBsGfCHoyLC%2BxsgD8e7LywtPY%2BCajZwPheA%3D&reserved=0" originalsrc="http://www.fis.unipr.it/numrel/Research/BNS2016.html" shash="F8ZAlA5Jbb91rHJpq7L1TaEvaHENzrFyTq6uwlukIFdGk3kdtu17KTIuSlJ+xqpN/Gzseu5ZBIodHkmb8bEkf24iB5PJTu+iNcmML6mFg+w5VRQnvcie922DyG9A1Qu59PdiLAuI6GYUnZxM2allpBQ21jrKDlGTv3tXuYXYWbs=" target="_blank" class="">http://www.fis.unipr.it/numrel/Research/BNS2016.html</a>). Some of the Parma Groups' thorns were used in the parameter file added to the end of the mail.</div><div class=""><br class=""></div><div class="">Initial
data for equal mass (M_1,2=1.7 M_sun) binary neutron stars was
generated on LORENE using SLy EOS. Table of it was attached. Initial data could be downloaded from <a href="https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbitbucket.org%2Fbeyhank%2Fbns&data=02%7C01%7Croberto.depietri%40unipr.it%7C9856f8be4a614c36092808d7e087c54c%7Cbb064bc5b7a841ecbabed7beb3faeb1c%7C0%7C0%7C637224746075432863&sdata=%2FihD6LLxM2FTPBZpMQUevJecdN1yJf6Y0%2B%2FEN7xnJv4%3D&reserved=0" originalsrc="https://bitbucket.org/beyhank/bns" shash="SnQbNYRWQw6Jm3Nw2aI7jgRHkGoF9FSO388ogjjZcNQBa95isu0Oq+mGu7DwVq+feNnfgtaw/wn8o6MZY0taRZUjfc7gmjQtF2x49DtM5ZgQoKoVP5k9S2YHl9hb1pS33r/tDqcRJfrYqLS7mHkQZhXTRIPyqr84JhH19GVGbw4=" class="">https://bitbucket.org/beyhank/bns</a> .<br class=""></div><div class=""><br class=""></div><div class="">GRHydro thorn starts to give retval
after 504 simulation time and stops the simulation at 756 with NANs (BH
formed at 558). I suppose the error persists either
"EinsteinEvolve/GRHydro" or "PRThorns/GRHydro" is used. </div><div class=""><br class=""></div><div class="">
I do not know whether this error is resulted from low resolution or
something else. Same setting does not seem to give any error for the
configuration M_1,2=1.2 M_sun.<br class=""></div><div class=""><br class=""></div><div class="">Output, error and parameter files are attached.</div><div class=""><br class=""></div><div class="">Best regards,</div><div class=""><br class=""></div><div class="">Beyhan.<br class=""></div><div class=""><br class=""></div><div class="">---------------------------------------------------------------------------------</div><div class=""># The Parma Thorns<br class="">!TARGET = $ARR<br class="">!TYPE = git<br class="">!URL = <a href="https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbitbucket.org%2FGravityPR%2Fprthorns.git&data=02%7C01%7Croberto.depietri%40unipr.it%7C9856f8be4a614c36092808d7e087c54c%7Cbb064bc5b7a841ecbabed7beb3faeb1c%7C0%7C0%7C637224746075432863&sdata=PeD%2BZDceaHgO2mnDg8kKI2dmfc34Y7YmB%2BqOG383Gco%3D&reserved=0" originalsrc="https://bitbucket.org/GravityPR/prthorns.git" shash="UgDvGu+4d5Ma/I029Tf1m6BMpb36oGJrBJMOTBV/iWBNP+tF0w+SmFLaqxZOPXspaMtxRjV2jN/Anmmrpend4PD0L9e8wj42a6Hk37TqJHtxzAQ4C/267pQ5HSySAB+TmNMF0UggHnZeRZiyQvM28X1GbKWsrwmkSg4Bvm4A/5E=" target="_blank" class="">https://bitbucket.org/GravityPR/prthorns.git</a><br class="">!REPO_PATH= $2<br class="">!CHECKOUT =<br class="">PRThorns/TempPool<br class="">PRThorns/Meudon_Bin_NS<br class="">PRThorns/Hydro_RNSID<br class="">PRThorns/GRHydro<br class="">PRThorns/GRHydro_Analysis<br class="">PRThorns/GRHydro_InitData</div></div>
<span id="cid:f_k901nxjb0"><tnisan12.par></span><span id="cid:f_k901nxjz2"><tnisan12.err></span><span id="cid:f_k901nxjq1"><tnisan12.out></span><span id="cid:f_k901oojj3"><eos_sly4_pp.d></span>_______________________________________________<br class="">Users mailing list<br class=""><a href="mailto:Users@einsteintoolkit.org" class="">Users@einsteintoolkit.org</a><br class="">https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.einsteintoolkit.org%2Fmailman%2Flistinfo%2Fusers&amp;data=02%7C01%7Croberto.depietri%40unipr.it%7C9856f8be4a614c36092808d7e087c54c%7Cbb064bc5b7a841ecbabed7beb3faeb1c%7C0%7C0%7C637224746075472838&amp;sdata=eKXWawcyEF4bd0wEZzILHnlV544pByOsqnNdlFZ5%2Blk%3D&amp;reserved=0<br class=""></div></blockquote></div><br class=""></body></html>