<div dir="ltr">Hi, <div><br></div><div>setting the parameter CarpetRegrid2::min_fraction = 1 solves the problem of the noise outburst ( I attach the file waveformMinfraction1.png that you can compare to the older waveforms.png where the noise is present). We have checked the problem with the new version of the EinsteinToolkit which is in the website and with version of 2017 which we were using and the noise disappeared in both. In terms of speed, the run with min_fraction=1 is slightly slower with respect to the older with min_fraction=0.9, but not significantly. I would like to thank again everybody for the quick feedback and help.<br></div><div><br></div><div>Best Regards,</div><div>Toni.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El jue., 7 mar. 2019 a las 16:00, Sascha Husa (<<a href="mailto:sascha.husa@gmail.com">sascha.husa@gmail.com</a>>) escribió:<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 dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Mar 7, 2019 at 3:56 PM Ian Hinder <<a href="mailto:ian.hinder@manchester.ac.uk" target="_blank">ian.hinder@manchester.ac.uk</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">
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<div>On 7 Mar 2019, at 14:50, Antoni Ramos Buades <<a href="mailto:antoniramosbuades@gmail.com" target="_blank">antoniramosbuades@gmail.com</a>> wrote:</div>
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<div dir="ltr">Thanks a lot Zach, Roland and Ian for your comments. We are currently compiling the last version of the EinsteinToolkit and we will make some runs with different values of CarpetRegrid2::min_fraction to check if the noise disappears.
We will report you the results in a few days.</div>
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<div>Hi Toni,</div>
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<div>I suggest to change just one thing at a time; i.e. take the old version of the code that you ran with before, change just this one parameter, and rerun the simulation. If you change too many things at the same time (and you are thinking of making 2 years
worth of changes!), the results might be different for many more reasons, and it's hard to reason about the problem.</div></div></div></blockquote><div><br></div><div>The plan is to make tests with both the new and old versions of the code. We produced a setup where the problems appears relatively soon, so this won't be too expensive.</div><div><br></div><div>Thanks for the quick feedback everybody!</div><div>cheers,</div><div>-sascha</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;"><div>
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