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.
Hi Toni,
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.
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.
Thanks for the quick feedback everybody!
cheers,
-sascha
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Ian Hinder
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University of Manchester, UK
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