From schnetter@cct.lsu.edu Thu Jun 17 18:40:19 2010 From: schnetter@cct.lsu.edu To: commits@lists.einsteintoolkit.org Subject: [Commits] [svn:einsteintoolkit] www/toolkit/releases/ (Rev. 280) Date: Thu, 17 Jun 2010 23:40:19 +0000 Message-ID: <20100617234019.A92D02C332C@mail.einsteintoolkit.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="===============3318170163773332474==" --===============3318170163773332474== Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable User: eschnett Date: 2010/06/17 06:40 PM Added: /toolkit/releases/ ET_2010_06_announcement.php, index.php Log: Add release announcement File Changes: Directory: /toolkit/releases/ =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D File [added]: ET_2010_06_announcement.php Delta lines: +180 -0 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- toolkit/releases/ET_2010_06_announcement.php (rev= 0) +++ toolkit/releases/ET_2010_06_announcement.php 2010-06-17 23:40:19 UTC (rev= 280) @@ -0,0 +1,180 @@ + + +

+We are pleased to announce the first release (code name +"Bohr") +of the Einstein Toolkit, an open, community developed software +infrastructure for relativistic astrophysics. The Einstein Toolkit is +a collection of over 130 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 Whisky hydrodynamics code, and the +Carpet AMR infrastructure. 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. Current +development in the consortium is targeted at providing additional +infrastructure for general relativistic magnetohydrodynamics.

+ +

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 hold 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 that encourages the +sharing of code across the community, prevents code duplication, and +leads to sustainable support and development of essential code.
  • + +
  • Well thought out and stable interfaces between components that +enable multiple implementations of physics capabilities, and allow +groups or individuals to concentrate on their areas of interest.
  • + +
  • Separation of physics software from computational science +infrastructure so that new technologies for large scale computing, +processor accelerators, or parallel I/O can be easily integrated with +science codes.
  • + +
  • The provision of complete working production codes to provide: +prototypes, standard benchmarks, and testcases; codes that are +available for and usable by the general astrophysics community; tools +for new researchers and groups to enter this field; 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>= ;. + +

    We thank the numerous people +who contributed to this software over the +past many years; there are too many to be listed here. We also +gratefully acknowledge those who helped in the past months to make +this release happen. The Einstein Toolkit is primarily supported by +NSF 0903973/0903782/0904015 (CIGR), and also by NSF 0701566/0855892 +(XiRel), 0721915 +(Alpaca), +and 0905046/0941653 (PetaCactus).

    + + + + + +

    This release comprises the following tools, arrangements, and +thorns. Each tool/arrangement/thorn may have its own licencing +conditions, but all are available as open source:

    + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
    CactusFlesh
    CactusBaseStandard Cactus thorns
    CactusConnect
    CactusElliptic
    CactusExternal
    CactusIO
    CactusNumerical
    CactusPUGH
    CactusPUGHIO
    CactusUtils
    ExternalLibrariesInterfaces to external libraries
    CarpetAdaptive mesh refinement
    EinsteinAnalysisEinstein Toolkit
    EinsteinBase
    EinsteinEOS
    EinsteinEvolve
    EinsteinInitialData
    EinsteinUtils
    McLachlanBSSN implementation
    TAT/TATellipticVarious thorns
    AEIThorns/AEILocalInterp
    LSUThorns/QuasiLocalMeasures
    LSUThorns/SummationByParts
    KrancAutomated code generation
    GetComponentsDownloading tools and thorns
    SimFactoryBuilding code and running simulations
    + +

    All repositories participating in this release carry a branch +ET_2010_06 marking this release. These release branches will +be updated if severe errors are found.

    + + + +

    This release has been tested on the following systems and +architectures:

    + + + +

    The Simulation +Factory contains ready-to-use configuration details for more than +20 additional systems, including most HPC systems +at LONI, +NERSC, +RZG, +and TeraGrid.

    + +

    The Einstein Toolkit thorns contain 89 regression test cases. +While all test cases pass on important systems, there are +unfortunately also some systems where certain test cases fail. We +verified that this is because of accumulation of floating-point +round-off error in most cases, and we will discuss this issue in a +broader context on the mailing list in the near future.

    + + + +

    The Einstein Toolkit web site contains online documentation for its +thorns, and pointers for using it to build your own code. There is +also a tutorial that explains how to download, build, and run the code +for a simple binary black hole evolution. We invite you to join our +mailing list +<users(a)einsteintoolkit.org&rt;.

    + + + +

    On behalf of the Einstein Toolkit Consortium: the "Bohr" Release Team

    + +

    +   Gabrielle Allen
    +   Eloisa Bentivegna
    +   Tanja Bode
    +   Peter Diener
    +   Roland Haas
    +   Ian Hinder
    +   Frank Löffler
    +   Bruno Mundim
    +   Erik Schnetter
    +   Eric Seidel +

    + +

    June 17, 2010

    +=09 + File [added]: index.php Delta lines: +26 -0 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- toolkit/releases/index.php (rev 0) +++ toolkit/releases/index.php 2010-06-17 23:40:19 UTC (rev 280) @@ -0,0 +1,26 @@ + + +

    The most recent (and, so far, only) release of the Einstein Toolkit + is ET_2010_06, code named + "Bohr". + We expect this version to remain unchanged, save for correcting + serious problems that may be detected. This version should be your + first choice if you are new to the Einstein Toolkit, or if you want + to perform production simulations.

    + +

    In addition to the releases, we also have a development version + where (unsurprisingly) most of the development occurs. Our + gentlemen's agreement is that the development version should build + and run correctly on most of the important platforms at all times, + but this may not be the case on a bad day

    + + +

    List of Einstein Toolkit releases:

    + +=09 + --===============3318170163773332474==--