<div dir="auto"><div dir="ltr">Greetings! I am CCing Prof Josh Faber on this message in the hope that perhaps he has some time to share his insights on the question you ask.<div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px">-Zach</div><div style="font-size:12.8px"><br></div><span style="font-size:12.8px">* * *</span><br style="font-size:12.8px"><span style="font-size:12.8px">Zachariah Etienne</span></div><div><span style="font-size:12.8px">Assoc. Prof. of Physics, U. of Idaho</span></div><div><span style="font-size:12.8px">Adjunct Assoc. Prof. of Physics & Astronomy, West Virginia U.</span></div><div dir="ltr"><div><a href="https://etienneresearch.com" target="_blank" rel="noreferrer">https://etienneresearch.com</a></div><div><a href="https://blackholesathome.net/" target="_blank" rel="noreferrer">https://blackholesathome.net</a><br></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 15, 2024 at 6:19 AM 巾非凡文 <<a href="mailto:shenfei2002@foxmail.com" target="_blank" rel="noreferrer">shenfei2002@foxmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><p class="MsoNormal" align="left" style="background:rgb(253,253,254)"><span lang="EN-US" style="font-size:11.5pt;color:rgb(5,7,59);font-family:"Times New Roman"">Professor,
hello. I am an undergraduate student from Nanjing Normal University. My
research topic is related to the merger of binary neutron stars. However, I
have encountered some difficulties in generating initial data with LORENE, and
I hope to receive your assistance. Thank you very much.<u></u><u></u></span></p>
<p class="MsoNormal" align="left" style="background:rgb(253,253,254)"><span style="font-family:"Times New Roman""><span lang="EN-US" style="font-size:11.5pt;color:rgb(5,7,59)">I have
downloaded the LORENE library in the Fedora virtual machine environment and
selected some test examples from the website at </span><span lang="EN-US"><a href="https://ccrgpages.rit.edu/~jfaber/BNSID/" target="_blank" rel="noreferrer"><span style="font-size:11.5pt;color:rgb(0,82,217)">https://ccrgpages.rit.edu/~jfaber/BNSID/</span></a></span><span lang="EN-US" style="font-size:11.5pt;color:rgb(5,7,59)">. Here are my
specific operations: First, I replaced the file "binaire_orbite.C" in
the Codes folder with the one I downloaded in the LORENE folder, and replaced
the file "coal_seq_massscan.C" with the "coal.c" file in
the "/Lorene/Codes/Bin_star" directory of the LORENE folder. Next, I
selected the example in the "Data/AP4/AP4_1.8_1.4" folder on the
website for simulation calculations. Among them, I copied the six files,
"par_eos1.d", "par_eos2.d", "par_grid1.d",
"par_grid2.d", "par_init.d", and
"parcoal_seq.d.40km", to the "/Lorene/Codes/Bin_star"
directory of the LORENE folder. Subsequently, I ran the command in the terminal
of that directory. The specific command I executed is as follows:<u></u><u></u></span></span></p><p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman"">make init_bin<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman"">make coal<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman"">make lit_bin<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman"">./init_bin<u></u><u></u></span></p><p class="MsoNormal" align="left" style="background:rgb(253,253,254)"><span lang="EN-US" style="font-size:11.5pt;color:rgb(5,7,59);font-family:"Times New Roman"">
</span></p><p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman"">./coal<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman"">However, during the execution process, I encountered the following
assertion error:<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman"">coal: /home/lhc/Lorene/C++/Include/tbl.h:282: double&
Lorene::Tbl::set(int): Assertion `etat == ETATQCQ' failed.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman"">Aborted (core dumped)<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman"">Next, I modified the line 282 in the file
"/home/lhc/Lorene/C++/Include/tbl.h" from etat == ETATQCQ to true and
attempted to run it again. This time, there was no assertion error reported.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman""> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman"">
</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt"><span style="font-family:"Times New Roman"">After running for about an hour, I obtained the following files:</span><u></u><u></u></span><img src="cid:ii_18ef1b3687b29e662701" alt=""></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman"">However,
the initial data file I obtained is different from the initial data files in
the "Data/AP4/AP4_1.8_1.4" folder on the website
<a href="https://ccrgpages.rit.edu/~jfaber/BNSID/" target="_blank" rel="noreferrer">https://ccrgpages.rit.edu/~jfaber/BNSID/</a>. Specifically, the file I got is named
"resu_4.000000e+01_2.080000e+00_1.550000e+00.d".<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman""> </span></p><p class="MsoNormal">
</p><p class="MsoNormal"><span style="font-family:"Times New Roman""><span lang="EN-US" style="font-size:12pt">Do you
know why this is the case?</span><span lang="EN-US"> </span></span><span lang="EN-US" style="font-size:12pt"><span style="font-family:"Times New Roman"">Is it due to my incorrect operation steps that
led to this issue?</span><u></u><u></u></span></p></div><div><p class="MsoNormal" align="left" style="background:rgb(253,253,254)"></p></div><div><div style="font-size:14px;font-family:Verdana;color:rgb(0,0,0)"><table style="white-space:normal;display:inline-block;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei";table-layout:fixed;padding-right:20px;text-decoration:none" cellpadding="0" cellspacing="0"><tbody><tr valign="top"><td style="width:40px;min-width:40px;padding-top:10px"><div style="width:38px;height:38px;border:1px solid rgb(255,255,255);border-radius:50%;margin:0px;vertical-align:top"><img src="https://thirdqq.qlogo.cn/g?b=oidb&k=SAdSnCZ9QW3XrlNghCxJiag&s=0" style="width:100%;border-radius:50%"></div></td><td style="padding:10px 0px 8px 10px"><div style="font-size:14px;color:rgb(51,49,46);line-height:20px;padding-bottom:2px;margin:0px;font-weight:500">巾非凡文</div><div style="font-size:12px;color:rgb(153,152,150);line-height:18px;margin:0px"><a href="mailto:shenfei2002@foxmail.com" target="_blank" rel="noreferrer">shenfei2002@foxmail.com</a></div></td></tr></tbody></table></div></div><div> </div>_______________________________________________<br>
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