<div dir="ltr">Hi all,<div><br></div><div>Regarding this:</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">* removed symmetries, 6th order accurate finite differencing,<br> Dissipation to 7th order, increased final time (crash is after<br> t=200M which is normally not reached), found crash in McLachlan<br> (BSSN). Using Dissipation thorn, will send email to mailing list</blockquote><div><br></div><div>I just reanalyzed the BaikalETK output for this run. BaikalETK exited due to NaNs being found at precisely the same iteration as ML_BSSN. <b><u>Conclusion: this doesn't seem to be a ML_BSSN problem at all.</u></b> A closer analysis of the BSSN constraints indicates there's a blow-up near the outer boundary. In case anyone else wants to take a look, I've attached the parfile. Warning: requires a few HPC nodes to run.</div><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">Prof. Zachariah Etienne</span></div><div dir="ltr">Physics & Astronomy Dept.<br style="font-size:12.8px"><div style="font-size:12.8px">West Virginia University</div><div><a href="http://astro.phys.wvu.edu/zetienne/" target="_blank">http://astro.phys.wvu.edu/zetienne/</a></div><div><a href="http://blackholesathome.net/" target="_blank">http://blackholesathome.net</a><a href="https://blackholesathome.net" style="font-size:12.8px" target="_blank"><br></a><br></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Sep 26, 2019 at 10:57 AM Haas, Roland <<a href="mailto:rhaas@illinois.edu">rhaas@illinois.edu</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">Present: Bill, Helvi, Maria, Peter, Roland, Steve, Yu Liu, Zach<br>
<br>
ET release:<br>
* Fishbone Moncrief:<br>
- code is not self-contained since NRPy+ is not part of the toolkit<br>
- NRPy+ itself is BSD license and available<br>
* self-force code<br>
- Steve could not checkout and and compile code, was missing effective<br>
source code, needs to be organized yet, could be done next week<br>
- Peter is addressing issues raised in tickets<br>
<a href="https://bitbucket.org/peterdiener/selfforce-1d/issues" rel="noreferrer" target="_blank">https://bitbucket.org/peterdiener/selfforce-1d/issues</a><br>
- will go ahead with inclusion<br>
- code will not be part of the default thornlist, will use its own<br>
issue tracker<br>
- will provide download instructions on ET website, will be mentioned<br>
in release announcement<br>
- Roland suggests to add Cactus-like "Author", "Maintainer" and<br>
"License" information to the README file (which are in somewhat<br>
machine parseable)<br>
* release date: move complete freeze to Oct 14th<br>
* Helvi's group will start running gallery examples<br>
* Helvi will run test suites on SuperMUC<br>
<br>
Tickets relevant to :<br>
* <a href="https://bitbucket.org/einsteintoolkit/tickets/issues/2119/" rel="noreferrer" target="_blank">https://bitbucket.org/einsteintoolkit/tickets/issues/2119/</a> has made<br>
some progress tracking down, have old code so that we can compare,<br>
currently do not have a current run with the current evolution code<br>
* <a href="https://bitbucket.org/einsteintoolkit/tickets/issues/2274/" rel="noreferrer" target="_blank">https://bitbucket.org/einsteintoolkit/tickets/issues/2274/</a> will be<br>
reviewed by Steve<br>
<br>
BaikalETK:<br>
* Zach has code done far enough that comparison to McLachlan was<br>
possible and waveforms agree for qc0-mclachlan.par<br>
* removed symmetries, 6th order accurate finite differencing,<br>
Dissipation to 7th order, increased final time (crash is after<br>
t=200M which is normally not reached), found crash in McLachlan<br>
(BSSN). Using Dissipation thorn, will send email to mailing list<br>
<br>
Yours,<br>
Roland<br>
<br>
-- <br>
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and signing email messages. Get my PGP key from <a href="http://pgp.mit.edu" rel="noreferrer" target="_blank">http://pgp.mit.edu</a> .<br>
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