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meeting minutes
by Roland Haas 02 Jul '12

02 Jul '12

Present were: Philipp, Erik, Bruno, Roland, Yosef, Josh, Tanja, Steve, Dennis * developers workshop locations for fall workshop are still open. Please choose your preferred location at http://www.doodle.com/htit7iktgmw3fuwy * cactuscode subversion server Steve will look into this from LSU (ticket # is https://trac.einsteintoolkit.org/ticket/969) * Roland will modify the failing utility to use a C/C++ main program and a Fortran subroutine to avoid the build failures * current stauts of the improved scheduler is that we have read/write statements and have plan to add interior/everything/boundary options to specify the region which the routine reads/writes (independently) * Steve and hari Krishnan are looking into creting a GUI, filter-pipeline like, interface to creaet schedule.ccl. Roland suggests that this might be useful if it shows a view of the whole schedule generated by Cactus while the user can modify a thorns schedule.ccl. Yours, Roland

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Einstein Toolkit Meeting Reminder
by Roland Haas 01 Jul '12

01 Jul '12

Hi Please consider joining the weekly Einstein Toolkit phone call at 10 am US central time on Mondays. As usual, you can find instructions how to join on the following web site: http://einsteintoolkit.org/community/support/ In short: the number is (+1) 225-578-4942 or (+1) 866-573-0359 and the conference id is 118682#. I will host this week's call, so hopefully everything will go smoothly. (Some) topics to discuss: - Einstein Toolkit Workshop Time and location are not decided yet, the doodle poll for the time http://doodle.com/ritukz79hhuvhben is still open, and so far LSU (Frank) and RIT (Joshua) volunteered to host it, but no other opinions have been raised. I would like to make progress on this if at all possible so that people can plan flights etc. - subversion server woes - Fortran interfaces in particular to EOS_Omni and GRHydro - build failure of Riemann1D utility from GRHydro on some machines (hopper, kraken) - scheduling improvements (wrt GLOBAL, LOCAL, LOOP-LOCAL etc.) progress Please feel free to add to this list (which is now slanted towards what I am currently interested in). Roland Haas

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Re: [Users] Can't check out einsteintoolkit
by Daniel Siegel 26 Jun '12

26 Jun '12

On Mon, Jun 25, 2012 at 10:56:31AM -0500, Carl Rodriguez wrote: >> I'm having the same issue: it appears I can't access any of the LSU >> thorns via anonymous checkout. All of the LSU based numrel >> components are now requesting authentication by "Subversion (CCT >> LDAP / svn_ users)". Did the permission settings for the SVN server >> get adjusted recently? >Thanks for letting us know. I'll make sure this gets resolved. >Frank Dear all, I am just experiencing the very same problem as Carl. Daniel

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Can't check out einsteintoolkit
by Petr Tsatsin 25 Jun '12

25 Jun '12

Hello, I'm trying to checkout einsteintoolkit on my work station and it's asking for some password. I didn't experienced this problem before. What I should enter for the password? -- Petr Tsatsin Graduate Student - Department of Physics Charles E. Schmidt College of Science Florida Atlantic University (561)-297-3386 cell: 561-692-2040 ptsatin(a)fau.edu, ptsatsin(a)gmail.com

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meeting minutes
by Roland Haas 25 Jun '12

25 Jun '12

Present were: Philipp, Erik, Bruno, Roland, Yosef, Josh * workshop locations for fall workshop are still open. Bruno volunteers to organize at RIT. * Erik announced plans to retire cctk_lssh from the flesh and to introduce cctk_ash instead (see discussion on the Cactus mailing list [1]) * this change should not change behaviour unless extra parameters are set by the user Yours, Roland [1] http://cactuscode.org/pipermail/users/2012-June/003134.html

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Einstein Toolkit Meeting Reminder
by Roland Haas 24 Jun '12

24 Jun '12

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Re: [Users] Problem with a regridding ET_2012_05
by Petr Tsatsin 23 Jun '12

23 Jun '12

Hello Roland, Yes, I have a r372. I also attached my par file for the reference. >Hello Peter, > >> I'm trying to run Meudon initial data for binary neutron stars. I'm >> using 2 mesh refinement levels. The problem is that after first >> regridding all the ADM quantities become NaNs. Maybe I'm missing >> something in my par file (which was working fine on previous >> release)? >There is a very recent bug in GRHydro that seems to be able to cause >NaNs after regridding. It existed between revisions 359 (where it was >introduced, this is after the release) and revison 370 (where it was >hopefully removed again) of GRHydro. r370 is the most current version as >of this email. Do you see this as well with the released version (which >would be bad)? > >Yours, >Roland -- Petr Tsatsin Graduate Student - Department of Physics Charles E. Schmidt College of Science Florida Atlantic University (561)-297-3386 cell: 561-692-2040 ptsatin(a)fau.edu, ptsatsin(a)gmail.com

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Problem with a regridding ET_2012_05
by Petr Tsatsin 22 Jun '12

22 Jun '12

Hi, I'm trying to run Meudon initial data for binary neutron stars. I'm using 2 mesh refinement levels. The problem is that after first regridding all the ADM quantities become NaNs. Maybe I'm missing something in my par file (which was working fine on previous release)? -- Petr Tsatsin Graduate Student - Department of Physics Charles E. Schmidt College of Science Florida Atlantic University (561)-297-3386 cell: 561-692-2040 ptsatin(a)fau.edu, ptsatsin(a)gmail.com

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Status of MHD in GRHydro?
by Heeil Kim 22 Jun '12

22 Jun '12

Hi, I've tested GRMHD with the latest development version and also with Lovelace. I made a parameter file for the evolution of magnetized stars with Meudon reader + Cell centered + Refluxing + some various combinations of LLF, Constraint transport etc. But almost all tests were stopped at one AMR cycle (it=4, # of reflevel =3). Do you have any hints? What I'm concerning is many people seem to be doing tests on the MHD. I'd better wait? Or Am I missing something important? Thanks in advance, Cheers, Hee Il

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Re: [Users] Unexpectedly asymmetric WFs from WeylScal4 + Multipole?
by Kelly, Bernard J. (GSFC-660.0)[UNIVERSITY OF MARYLAND BALTIMORE COUNTY] 21 Jun '12

21 Jun '12

Hmm. That *does* sound likely. I'm pretty sure I haven't updated since long before then. Thanks, Tanja! Bernard On 6/20/12 4:48 PM, "Tanja Bode" <tanja.bode(a)physics.gatech.edu> wrote: >Hi Bernard, > >Have you updated your Maxwell code recently? There was a bug (#851) >having to do >with pseudoscalar treatment in ReflectionSymmetry which, having affected >interpolations for Psi4i, manifested in a way like you described. The fix >was >backported to the Maxwell release on May 2nd. > >https://trac.einsteintoolkit.org/ticket/851 > >-Tanja > >On 06/20/12 16:36, Kelly, Bernard J. (GSFC-660.0)[UNIVERSITY OF MARYLAND >BALTIMORE >COUNTY] wrote: >> Hi all. >> >> I was post-processing a BHB merger run, and noticed a problem with my >> waveforms, extracted using WeylScal4 and Multipole: the (2,2) mode looks >> fine, but the (2,-2) mode is highly suppressed (by about an order of >> magnitude). Ditto the (3,+/-3) modes etc, though the amplitude mismatch >>is >> different for each (l,m) case. >> >> I thought I was post-processing incorrectly, but the problem is in the >> "mp_psi4_lX_mY_rZ.asc" files. The negative-m data is also considerably >> noisier than the positive-m data. >> >> I assume I'm missing something in my parameter file. Some subtle (or >> not-too-subtle) symmetry setting relevant to Multipole. Can someone >>help, >> please? I'm attaching my parameter file. It's adapted from the ETK >> BBHLowRes.par file (and a brief run of that appears to have the same >> issues for me). >> >> I'm using Maxwell, by the way. Any help appreciated. >> >> Bernard >> >> >>------------------------------------------------------------------------- >>-- >> >> >> >> _______________________________________________ >> Users mailing list >> Users(a)einsteintoolkit.org >> http://lists.einsteintoolkit.org/mailman/listinfo/users >

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