Hi all,
Regarding this:
- removed symmetries, 6th order accurate finite differencing, Dissipation to 7th order, increased final time (crash is after t=200M which is normally not reached), found crash in McLachlan (BSSN). Using Dissipation thorn, will send email to mailing list
I just reanalyzed the BaikalETK output for this run. BaikalETK exited due to NaNs being found at precisely the same iteration as ML_BSSN. *Conclusion: this doesn't seem to be a ML_BSSN problem at all.* 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.
-Zach
* * * Prof. Zachariah Etienne Physics & Astronomy Dept. West Virginia University http://astro.phys.wvu.edu/zetienne/ http://blackholesathome.net https://blackholesathome.net
On Thu, Sep 26, 2019 at 10:57 AM Haas, Roland rhaas@illinois.edu wrote:
Present: Bill, Helvi, Maria, Peter, Roland, Steve, Yu Liu, Zach
ET release:
- Fishbone Moncrief:
- code is not self-contained since NRPy+ is not part of the toolkit
- NRPy+ itself is BSD license and available
- self-force code
- Steve could not checkout and and compile code, was missing effective source code, needs to be organized yet, could be done next week
- Peter is addressing issues raised in tickets
https://bitbucket.org/peterdiener/selfforce-1d/issues
- will go ahead with inclusion
- code will not be part of the default thornlist, will use its own issue tracker
- will provide download instructions on ET website, will be mentioned in release announcement
- Roland suggests to add Cactus-like "Author", "Maintainer" and "License" information to the README file (which are in somewhat machine parseable)
- release date: move complete freeze to Oct 14th
- Helvi's group will start running gallery examples
- Helvi will run test suites on SuperMUC
Tickets relevant to :
- https://bitbucket.org/einsteintoolkit/tickets/issues/2119/ has made some progress tracking down, have old code so that we can compare, currently do not have a current run with the current evolution code
- https://bitbucket.org/einsteintoolkit/tickets/issues/2274/ will be reviewed by Steve
BaikalETK:
- Zach has code done far enough that comparison to McLachlan was possible and waveforms agree for qc0-mclachlan.par
- removed symmetries, 6th order accurate finite differencing, Dissipation to 7th order, increased final time (crash is after t=200M which is normally not reached), found crash in McLachlan (BSSN). Using Dissipation thorn, will send email to mailing list
Yours, Roland
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