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Re: [Users] [Commits] [svn:einsteintoolkit] incoming/PITTNullCode/SphericalHarmonicReconASCII/ (Rev. 57)
by Frank Loeffler 08 Nov '11

08 Nov '11

On Tue, Nov 08, 2011 at 12:03:20AM +0000, reisswig(a)tapir.caltech.edu wrote: > Modified: > /PITTNullCode/SphericalHarmonicReconASCII/ > configuration.ccl, param.ccl > /PITTNullCode/SphericalHarmonicReconASCII/src/ > sph_database.cc, sph_database.hh, startup.cc > > Log: > Add capability of hdf5. Would it make sense to think about updating the thorn name? Frank

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Tapered grids
by Jakob Hansen 08 Nov '11

08 Nov '11

Hi, In order to change my simulations to use tapered grid, is all I have to do is set : Carpet::use_tapered_grids = yes in my parameter file, or is it more complicated than that? Cheers, Jakob

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Einstein Toolkit Meeting *talk* reminder
by Frank Loeffler 07 Nov '11

07 Nov '11

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/ I am happy to be able to announce that the Illinois Relativity group will present one of their recent papers within the next meeting: "Relativistic MHD in dynamical spacetimes: Improved EM gauge condition for AMR grids" [1]. I will not put another point on this week's agenda, to have the full hour available for this topic. We usually only use phone for these meetings, but this week we will utilize the scheduled EVO meeting "Einstein Toolkit weekly" [2]. The regular phone line will be opened as well, but don't expect to hear everyone if you use it. Frank Loeffler [1] http://arxiv.org/abs/1110.4633 [2] http://evo.caltech.edu/evoNext/koala.jnlp?meeting=eIe9esvvv8anaiatII

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Re: [Users] [Commits] [svn:einsteintoolkit] Paper_EinsteinToolkit_2010/ (Rev. 158)
by Joshua Faber 05 Nov '11

05 Nov '11

Hi Frank, I've been going through the paper this weekend, fixing some of the details like the three definitions of rho, etc. Have we decided to submit it to CQG? If so, I've got some style files and related packages to produce the suggested format. It definitely changes the look of the references a bit. If we have decided to publish there, I'll commit everything tomorrow night after I get a chance to read through the tests section. Cheers, J On Sat, Nov 5, 2011 at 11:53 PM, <knarf(a)cct.lsu.edu> wrote: > User: knarf > Date: 2011/11/05 10:53 PM > > Modified: > / > ET.tex, plot_defaults.py > > Log: > tbd author list, fix reference, use uft8 > > File Changes: > > Directory: / > ============ > > File [modified]: ET.tex > Delta lines: +16 -26 > =================================================================== > --- ET.tex 2011-10-28 01:52:58 UTC (rev 157) > +++ ET.tex 2011-11-06 03:53:03 UTC (rev 158) > @@ -8,7 +8,6 @@ > \usepackage{dcolumn} > \usepackage{float} > \usepackage{graphicx} > -\usepackage[latin9]{inputenc} > \usepackage{multirow} > \usepackage{rotating} > \usepackage{subfigure} > @@ -18,6 +17,7 @@ > \usepackage{wrapfig} > \usepackage{multicol} > \usepackage{widetext} > +\usepackage[utf8]{inputenc} > > \usepackage[bookmarks, bookmarksopen, bookmarksnumbered]{hyperref} > \usepackage[all]{hypcap} > @@ -69,32 +69,22 @@ > > \title[The Einstein Toolkit]{The Einstein Toolkit: A Community > Computational Infrastructure for Relativistic Astrophysics} > > -\author{\textbf{TBD}} > - > % Short list, not really sorted right now: > -%\author{ > -%Eloisa Bentivegna, > -%Bruno Mundim, > -%Christian D. Ott, > -%Peter Diener, > -%Erik Schnetter, > -%Ian Hinder, > -%Frank LÃ¶ffler, > -%Roland Haas, > -%Tanja Bode, > +\author{ > +Frank LÃ¶ffler, > +Eloisa Bentivegna, > +Tanja Bode, > +Peter Diener, > +Joshua Faber, > +Roland Haas, > +Ian Hinder, > +Bruno Mundim, > +Christian D. Ott, > +Erik Schnetter, > +Gabrielle Allen, > +Manuela Campanelli, > +Pablo Laguna} > > -% POTENTIAL AUTHORS: M. Alcubierre, G. Allen, M. Ansorg, L. Baiotti, > -% E. Bentivegna, S. Bernuzzi, T. Bode, S. Brandt, G. Corvino, R. De > -% Pietri, P. Diener, H. Dimmelmeier, Y. El Khamra, J. Faber, T. Font, J. > -% Frieben, B. Giacomazzo, T. Goodale, C. Gundlach, R. Haas, I. Hawke, > -% S. Hawley, I. Hinder, T. Kellermann, G. Lanfermann, F. L\"{o}ffler, > -% J. Masso, M. Miller, P. Montero, B. Mundim, C. Ott, R. Paruchuri, D. > Pollney, > -% T. Radke, L. Rezzolla, D. Rideout, M. Ripeanu, E. Schnetter, E. > -% Seidel, E. L. Seidel, J. Shalf, N. Stergioulas, R. Takahashi, J. > -% Thornburg, A. Tonita, P. Walker > - > - > - > %\thanks{{}$^{(1)}$ Department of Computer Science, > % Louisiana State University, Baton Rouge, LA 70803, USA} > %\thanks{{}$^{(2)}$ Department of Physics \& Astronomy, > @@ -244,7 +234,7 @@ > > This success prompted usage of the {\tt Cactus} computational toolkit in > other > areas, such as ocean forecast models \cite{Djikstra2005} and chemical > reaction > -simulations \cite{Camarada2001}. At the same time, the growing > +simulations \cite{Camarda2001}. At the same time, the growing > number of results in numerical relativity increased the need for commonly > available utilities such as comparison and analysis tools, typically > those specifically designed for astrophysical problems. Including them > > File [modified]: plot_defaults.py > Delta lines: +0 -1 > =================================================================== > --- plot_defaults.py 2011-10-28 01:52:58 UTC (rev 157) > +++ plot_defaults.py 2011-11-06 03:53:03 UTC (rev 158) > @@ -39,5 +39,4 @@ > M_sol = 1.98892e30 # kg > # convertion factors > M_to_ms = 1./(1000*M_sol*G/(c*c*c)) > -# fix this - what is 7e10? > M_to_density = c*c*c*c*c*c / (G*G*G * M_sol*M_sol) # kg/m^3 > > _______________________________________________ > Commits mailing list > Commits(a)einsteintoolkit.org > http://lists.einsteintoolkit.org/mailman/listinfo/commits >

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Lorene local settings
by Luca Baiotti 01 Nov '11

01 Nov '11

Hello. Lorene is notoriously difficult to build (I mean, it is difficult to choose the appropriate local_settings to build it) and the thorn ExternalLibraries/LORENE is very helpful. However, I need to compile some non-standard code into Lorene, so I cannot use ExternalLibraries/LORENE. (Or can I?) So I need to compile Lorene by myself but I would like to use the settings determined by ExternalLibraries/LORENE. In ExternalLibraries/LORENE/LORENE.sh I found the lines: cat > local_settings <<EOF CXX = ${CXX} CXXFLAGS = ${CXXFLAGS} ${CPP_OPENMP_FLAGS} CXXFLAGS_G = ${CXXFLAGS} F77 = ${F77} F77FLAGS = ${F77FLAGS} ${FIXEDF77FLAGS} F77FLAGS_G = ${F77FLAGS} ${FIXEDF77FLAGS} INC = -I\$(HOME_LORENE)/C++/Include -I\$(HOME_LORENE)/C++/Include_extra \$(addprefix -I,${GSL_INC_DIRS}) RANLIB = ${RANLIB} # We don't need dependencies since we always build from scratch #MAKEDEPEND = ${CXX_DEPEND} \$(INC) \$< ${CXX_DEPEND_OUT} && mv \$@ \$(df).d MAKEDEPEND = : > \$(df).d DEPDIR = .deps FFT_DIR = FFT991 LIB_CXX = ${LIBS} LIB_LAPACK = ${LAPACK_LIBS} ${BLAS_LIBS} LIB_PGPLOT = LIB_GSL = ${GSL_LIBS} DONTBUILDDEBUGLIB = yes EOF but I could not make out directly the values of all the parameters. Is there a way to print out the local_settings file produced and used by ExternalLibraries/LORENE? Any help is welcome. Cheers, Luca

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*No* Einstein Toolkit Meeting Reminder
by Frank Loeffler 30 Oct '11

30 Oct '11

Hi Due to the Einstein Toolkit workshop there will be no Einstein Toolkit Meeting this week. Frank Loeffler

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MoL and Arrays?
by Hal Finkel 28 Oct '11

28 Oct '11

In the MoL's interface file, MoLRegisterEvolvedArray, ArrayScratchSpace, etc. are commented out. Why is that? If I want to evolve arrays, should I just uncomment that stuff? Thanks in advance, Hal -- Hal Finkel Postdoctoral Appointee Leadership Computing Facility Argonne National Laboratory

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Einstein Toolkit release "Maxwell"
by Frank Loeffler 25 Oct '11

25 Oct '11

We are pleased to announce the fourth release (code name "Maxwell") of the Einstein Toolkit, an open, community developed software infrastructure for relativistic astrophysics. This release includes substantial changes to the underlying AMR infrastructure Carpet and the simfactory tool. GRHydro is now officially released with support for magnetohydrodynamics. In addition, bug fixes accumulated since the previous release in April 2011 have been included. The Einstein Toolkit is a collection of software components and tools for simulating and analyzing general relativistic astrophysical systems that builds on numerous software efforts in the numerical relativity community including CactusEinstein, the Carpet AMR infrastructure and the relativistic hydrodynamics code GRHydro (an updated and extended version of the public release of the Whisky code). The Cactus Framework is used as the underlying computational infrastructure providing large-scale parallelization, general computational components, and a model for collaborative, portable code development. The toolkit includes modules to build complete codes for simulating black hole spacetimes as well as systems governed by relativistic hydrodynamics. The Einstein Toolkit uses a distributed software model and its different modules are developed, distributed, and supported either by the core team of Einstein Toolkit Maintainers, or by individual groups. Where modules are provided by external groups, the Einstein Toolkit Maintainers provide quality control for modules for inclusion in the toolkit and help coordinate support. The Einstein Toolkit Maintainers currently involve postdocs and faculty from five different institutions, and host weekly meetings that are open for anyone to join in. Guiding principles for the design and implementation of the toolkit include: open, community-driven software development; well thought out and stable interfaces; separation of physics software from computational science infrastructure; provision of complete working production code; training and education for a new generation of researchers. For more information about using or contributing to the Einstein Toolkit, or to join the Einstein Toolkit Consortium, please visit our web pages at <http://einsteintoolkit.org>. The Einstein Toolkit is primarily supported by NSF 0903973/0903782/0904015 (CIGR), and also by NSF 0701566/0855892 (XiRel), 0721915 (Alpaca), 0905046/0941653 (PetaCactus) and 0710874 (LONI Grid). The "Maxwell" Release Team on behalf of the Einstein Toolkit Consortium (2011-10-24)

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GRMHD and the upcoming ET workshop
by Zach Etienne 25 Oct '11

25 Oct '11

Dear ET folks, We (the Illinois Relativity group) have been following the ET mailing list with great interest since its inception and were planning to send representatives to the upcoming ET workshop. Sadly, we will be too busy preparing for the Midwest Relativity Meeting, which we are hosting the following weekend. We noticed that there is some interest in implementing a vector potential-based GRMHD algorithm in ET. Were we able to attend the upcoming ET workshop to discuss this topic with you, we would have shared some recent improvements to our vector potential-based GRMHD algorithm, in the hope that the ET community might benefit. As many of you know, we currently evolve the vector potential to perform GRMHD simulations with divergence-free magnetic fields. We found some major problems with our original implementation when evolving magnetized binary inspirals, such as BHNS inspirals. We discovered that the problems were due to a zero-speed EM gauge mode, and after switching to another (Lorenz) EM gauge, we find huge improvements. We recently posted a paper summarizing our findings at: http://arxiv.org/abs/1110.4633 All the best, Zach Etienne Yuk Tung Liu Vasilis Paschalidis Stu Shapiro

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Einstein Toolkit Meeting Reminder
by Frank Loeffler 24 Oct '11

24 Oct '11

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/ I short: the number is (+1) 225-578-4942 or (+1) 866-573-0359 and the conference id is 118682#. Todays agenda contains only two items: - Release - ET paper As always: feel free to add to this list. Frank Loeffler

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