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Hello,</div>
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Please see below the meeting minutes for this week.</div>
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____________</div>
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Present: Steven Brandt, Maria Hamilton, Roland Haas, Atul Kedia, Pieter Diener, Bill Gabella, Eric Schnetter, Yosef Zlochower, Liu Haoyong, Zach Etienne, Antoni Ramos</div>
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Chair: Peter</div>
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Minutes: Maria</div>
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<li><i style="font-size: 12pt; font-variant-ligatures: inherit; font-variant-caps: inherit; font-weight: inherit;">Peter</i><span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;"> starts the meeting with the
first item on the agenda: </span><u style="font-size: 12pt; font-style: inherit; font-variant-ligatures: inherit; font-variant-caps: inherit; font-weight: inherit;">replacement of the cacuscode.org web page</u><span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">,
and asked Seven to explain the situation.</span></li></ul>
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<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<i>Steven</i> explained that <span style="font-family: Calibri, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255); display: inline !important">
that he wants a resolution to this this issue and will keep adding it to the agenda until it is resolved, and the old web page replaced.</span></div>
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<i>Roland</i> mentioned that Ian Hinder worked on a replacement for the web site, and gave the links:</div>
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https://test.cactuscode.org/
<a href="https://github.com/einsteintoolkit/cactuscode.org/issues" id="LPlnk463691">https://github.com/einsteintoolkit/cactuscode.org/issues</a><br>
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<a target="_blank" id="LPImageAnchor243561" href="https://github.com/einsteintoolkit/cactuscode.org/issues"><img id="LPThumbnailImageId243561" alt="" height="160" style="display: block;" width="160" src="https://avatars0.githubusercontent.com/u/6198340?s=400&v=4"></a></div>
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<a target="_blank" id="LPUrlAnchor243561" href="https://github.com/einsteintoolkit/cactuscode.org/issues" style="text-decoration: none; color: var(--themePrimary);">EinsteinToolkit/cactuscode.org</a></div>
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Holds the content of the CactusCode website. Contribute to EinsteinToolkit/cactuscode.org development by creating an account on GitHub.</div>
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github.com</div>
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The problem is that there are about 30 or more things that need to be fixed and he asked for volunteers to help pushing things forward. </div>
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<i>Steven</i> asked if is absolutely necessary to address each on of them or only the essential ones. </div>
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<i>Atul Kedia</i> was interested in the location of the the new web page, and if all the information from the old web page will be kept. </div>
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<i>Steven</i> encouraged Atul to take a look and compare the info, warning that the new web page will not have the same functionalities, not being written in php.</div>
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<ul>
<li><i>Peter</i> closed the first item and opened the second item on the agenda: <u>
virtual machines</u>, and again, handed it over to Steven, to elaborate it. </li></ul>
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<i>Steven</i> explained his proposition to replace the old server to host the tutorial with a new one, because the current one is struggling, is fragile and complex.</div>
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<i>Roland</i> wanted to make sure that the new server has the same capabilities of creating and managing individual accounts, like the Kubernetes set up.</div>
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<i>Steven</i> assured him that JupyterHub is a better alternative to Kubernetes, and that multiple accounts can be managed.</div>
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<ul>
<li><i>Peter</i> went on to the third item on the agenda, namely the <u>gcc 10 issues</u> and yielded to Roland to explain his work in trying to fix it.</li></ul>
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<i>Roland</i> related the problems with <span>compile failure with gfortran 10 when using CCTK_PointerTo, and compiling LAPACK ExternalThorn from source tarball fails with gcc 10. He reporter that he has them almost fixed and will back port them to the current
release. The problem with CCTK_Reduce is an old one, and it was reported since 2004 by Roberto de Pietri, and there is no fix. He proposed a change in the interface, namely in the Fortran function call, which will finally fix the issue. <br>
</span><span></span></div>
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<i>Peter</i> commended Roland for his work, declaring that he is impressed.</div>
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<i>Roland</i> thanked and said that he wished the compiler would not have changed, because it worked before.</div>
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<i>Zach</i> reminded also about the compilation issue with Baikal, which is mystifying, it is not giving an error, it is just very slow. </div>
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<li><i>Peter</i> went on to the next item, namely call for reviewers for the proposed thorn additions for the next EKT release in 5 months. </li></ul>
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<i>Zach</i> offered to review Power, a wave-form extractor thorn, that will be polished and developed more this summer by a student under Roland's supervision. </div>
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<i>Maria </i>tentatively offered to look into con2prim, a code developed by for a set of recovery schemes for primitive variables in GRMHD. </div>
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<i>Roland </i>said that he will send more info about this, and that there is plenty of time for a decision to be made.</div>
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<li><i>Peter</i> continued to the next item on the agenda, namely the work on the Binary Black Hole Gallery, and asked
<i>Atul</i> about the status of the testing. </li></ul>
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<i>Atul</i> explained that to his understanding there is still ork to be done, and he will look into the scripts on the simulations sent by
<i>Ian Hinder</i>. He also mentioned that <i>Peter S.</i>, who was not in the meeting, had problems with running on the cluster in Germany. </div>
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<i>Roland </i>explained that the problems appeared because the cluster is very new, uses python3 and hyperthreading, and it is difficult to set up. </div>
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<li><i>Peter</i> went on to ask about the status of the binary neutron stars gallery. </li></ul>
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<i>Roland</i> reported that <i>Sean R</i>. finished the simulations and obtained agreement before merger, but the post-merger is a little different, which was expected. He will re-run the simulation on his workstation, to confirm his suspicions that it depends
on the compiler. </div>
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<li><i>Peter</i> asked for chair/minute volunteers for the next two weeks.</li></ul>
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<i>Roland </i>expressed his hope that by July the meetings will be better attended because the new grant funds more people, and it will be easier to find volunteers.</div>
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<li><font color="#000000" face="Calibri, Arial, Helvetica, sans-serif"><span style="font-size: 12pt;"> Next,
<i>Peter</i> went to unanswered issues and open tickets. Most were about gcc 10 which were already addressed by R</span>oland<span style="font-size: 12pt;"> </span>previously<span style="font-size: 12pt;">. There was an issue with instability of Summation by
parts, and Roland will look into it. </span></font></li></ul>
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<li><font color="#000000" face="Calibri, Arial, Helvetica, sans-serif"><span style="font-size: 12pt;"><i>Peter</i>
</span>adjourned<span style="font-size: 12pt;"> the meeting.</span></font></li></ul>
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<div style=""><font color="#000000" face="Calibri, Arial, Helvetica, sans-serif"><span style="font-size: 12pt;">____________</span></font></div>
<div style=""><font color="#000000" face="Calibri, Arial, Helvetica, sans-serif"><span style="font-size: 12pt;"><br>
</span></font></div>
<div style=""><font color="#000000" face="Calibri, Arial, Helvetica, sans-serif"><span style="font-size: 12pt;">have a good rest of the week,</span></font></div>
<div style=""><font color="#000000" face="Calibri, Arial, Helvetica, sans-serif"><span style="font-size: 12pt;">Maria</span></font></div>
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<div>
<div dir="ltr">_______________________</div>
<div dir="ltr"><i><font size="2">Maria C. Babiuc Hamilton, Ph.D.</font></i></div>
<div dir="ltr"><i><font size="2">Professor, Department of Physics </font></i></div>
<div dir="ltr"><i style="font-size:12pt"><font size="2"><i style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt"><font size="2"></font></i>College of Science, </font></i><i style="font-size:12pt"><font size="2">Marshall University,</font></i></div>
<div dir="ltr"><i><font size="2">1 John Marshall Drive, </font></i><i style="font-size:12pt"><font size="2">Huntington, WV, 25755</font></i></div>
<div dir="ltr"><i><font size="2"><i style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt"><font size="2"><i style="font-size:12pt"><font size="2">Room S 257, <span id="ms-rterangepaste-start"></span><i style="font-size:16px"><font size="2">Phone:
(304)696-2754</font></i></font></i></font></i><br>
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