Users January 2011

users@lists.einsteintoolkit.org

13 participants
26 discussions

Meeting Reminder
by Frank Loeffler 24 Jan '11

24 Jan '11

Hi, This is a reminder about our usual Monday Einstein Toolkit phone call. As usual, you can find instructions how to join on the following web site: http://einsteintoolkit.org/info/support/ The general Einstein Toolkit paper will be the main topic this time, but other issues within the toolkit might be discussed as well. Frank Loeffler

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Re: [Users] [Commits] [svn:einsteintoolkit] manifest/trunk/ (Rev. 65)
by Frank Loeffler 22 Jan '11

22 Jan '11

Hi, On Sat, Jan 22, 2011 at 05:21:13PM +0000, schnetter(a)cct.lsu.edu wrote: > -##A > +## A ########################################################################### I should have explained this in the header: the marker ##A was there to enable an easy way to jump (by a simple search) to the section starting with A. "## A" is only a bit longer, but I would suggest to go back to "##A". It makes a difference especially when adding a lot of references, like it likely going to happen in the short-term future. Frank

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Re: [Users] [Einstein Toolkit] #149: BVec in HydroBase/interface.ccl should be an axial vector
by Roland Haas 21 Jan '11

21 Jan '11

Hello all, > #149: BVec in HydroBase/interface.ccl should be an axial vector ... > Roland, can you create an apply the corresponding patch? Yes. The problem is generating a test case with thorns already in the toolkit. I'll have to look at interptoarray I guess. Will happen sometime next week. Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://keys.gnupg.net.

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Example parameter files / test cases and EOS_Omni changes
by Erik Schnetter 21 Jan '11

21 Jan '11

Dear Einstein Toolkit users Many of the Einstein Toolkit hydrodynamics example parameter files and test cases do not work any more because thorn EOS_Omni is not activated and the corresponding parameters are not set. This is something where everybody can help, and it is important in the long term to have working test cases. I suggest that we add to the Wiki a description of how to update a parameter file (which thorns to add/remove, how to modify parameters). We can then take the existing parameter files and update them. -erik -- Erik Schnetter <schnetter(a)cct.lsu.edu> http://www.cct.lsu.edu/~eschnett/

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Slight changes to GetComponents options
by Eric Seidel 20 Jan '11

20 Jan '11

Hi all, I would like to mention two changes to the options for GetComponents. 1. I recently revised the system for running commands, and during that process I decided that I really only need two levels of verbosity, verbose and regular. Therefore GetComponents will no longer differentiate between '-v' and '-v -v'. Adding the second -v will not trigger an error though, it just won't add to the verbosity any more. 2. The parallel checkout mode (-p or --parallel) is substantially more stable now. It will checkout/update up to 4 components at a time. I would like to eventually have a parallel checkout be the default, likely adding an option to control how many threads to use, but first I would like to get feedback from you. So if you are using the git version of GetComponents, please test the parallel checkout/update option, and let me know if you see any issues. Thanks, Eric

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Meeting Reminder
by Frank Loeffler 17 Jan '11

17 Jan '11

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Meeting minutes
by Roland Haas 11 Jan '11

11 Jan '11

Meeting minutes: Present were: Frank, Roland, Peter, Eric, Scott, Erik, Bruno, Christian status updates of work done over Christmas/New Year GRHydro (MHD): * use EOS_Omni instead of the old interface * fixed some bugs in the divergence cleaner * race conditions in MHD branch when using OpenMP (static variables in Con2PrimM) GRHydro (hot EOS): * some debugging * added OpenMP support * addressed some issues with Carpet/Hg * fixed recent PPM bug (affects all versions, but was introduced recently into trunk) * the GetComponents repository has moved to GitHub for good now, the copy in subversion will no longer be used * we will try and move the bug tracker to a generic URL. See discussion on Cactus developers mailing list (http://cactuscode.org/pipermail/developers/2011-January/006147.html) * development of the initial data solver will be made somewhat more public but still restricted to the core ET people (details to be worked out, if you need access please write to Frank Loeffler). We need to finish the initial data solver and start working on the paper. We will have two papers using this, one paper only on initial data which will have a short author list of those who contributed and a second publication as part of the general ET code paper. * we want to begin assigning section for people to write in the general ET code paper https://svn.einsteintoolkit.org/documents/Paper_EinsteinToolkit_2010 Yours, Roland -- My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://keys.gnupg.net.

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Re: [Users] [Developers] undefined reference to `GenericFD_GetBoundaryWidth'
by Ian Hinder 11 Jan '11

11 Jan '11

On 11 Jan 2011, at 14:05, Barry Wardell wrote: > On 11/01/2011 11:39, Alexander Beck-Ratzka wrote: >> Hi Folks, >> >> I have an undefined reference to `GenericFD_GetBoundaryWidth'. Where can >> I get it? >> > Hi Alexander, > > GenericFD is a thorn provided as part of Kranc (http://kranccode.org/). > It's in Auxiliary/Cactus/KrancNumericalTools in the Kranc git repository > (https://github.com/ianhinder/Kranc/tree/master/Auxiliary/Cactus/KrancNumeri…). Hi Alexander, According to the email you sent me, you have checked out Kranc using an Einstein Toolkit thornlist from the branch ET_2010_06. In the version of Kranc for that branch, the GenericFD_GetBoundaryWidth function did not yet exist. Now, for some reason, you have a version of WeylScal4 which has been generated with a newer version of Kranc and uses this function. Did you check out WeylScal4 from the same thornlist? Can you post the section of the thornlist which refers to WeylScal4? -- Ian Hinder ian.hinder(a)aei.mpg.de

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phone line problems
by Frank Loeffler 10 Jan '11

10 Jan '11

Hi, Those who called in this morning probably heard a lot of interesting, but disturbing ... things. Let's try another conference line: Each participant of the teleconference will call 578-4942 (225-578-4942 from off-campus or 866-573-0359 toll fre e). Participants will press 338310# for Conference Line two. Frank

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Meeting Reminder
by Frank Loeffler 09 Jan '11

09 Jan '11

Hi, This is a reminder about our usual Monday Einstein Toolkit phone call. As usual, you can find instructions how to join on the following web site: http://einsteintoolkit.org/info/support/ The call will take place tomorrow, January 10th, at 10am US central time. I have seen a lot of changes to the toolkit over the holidays and I am sure I am not the only one who would like a summary. I would also like to (shortly) discuss / get opinions about moving the ET bug tracker (in the mid-term) to another, more general domain, e.g. opensciencetoolkits.org. Only the domain would change, I would like to keep the current system the same, but then extend and open it also to other non-ET releated projects which e.g. use Cactus. Frank Loeffler

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Users January 2011