User: knarf Date: 2014/11/19 01:12 PM

Added: /about/releases/ ET_2014_11_announcement.txt

Modified: /about/releases/ ET_2014_11_announcement.php

Log: txt announcement

File Changes:

Directory: /about/releases/ ===========================

File [modified]: ET_2014_11_announcement.php Delta lines: +1 -0 =================================================================== --- about/releases/ET_2014_11_announcement.php 2014-11-19 18:53:36 UTC (rev 1453) +++ about/releases/ET_2014_11_announcement.php 2014-11-19 19:12:56 UTC (rev 1454) @@ -170,6 +170,7 @@ <p>The "Herschel" Release Team on behalf of the Einstein Toolkit Consortium (2014-11-19)</p>

<p> +&nbsp;&nbsp;&nbsp;Steven R. Brandt<br /> &nbsp;&nbsp;&nbsp;Peter Diener<br /> &nbsp;&nbsp;&nbsp;Roland Haas<br /> &nbsp;&nbsp;&nbsp;Ian Hinder<br />

File [added]: ET_2014_11_announcement.txt Delta lines: +166 -0 =================================================================== --- about/releases/ET_2014_11_announcement.txt (rev 0) +++ about/releases/ET_2014_11_announcement.txt 2014-11-19 19:12:56 UTC (rev 1454) @@ -0,0 +1,166 @@ +We are pleased to announce the tenth release (code name "Herschel" (Caroline)) +of the Einstein Toolkit, an open, community developed software infrastructure +for relativistic astrophysics. + +This release includes various improvements in the handling of external +libraries (and with that, installations), and extensions of basis thorns (most +notably HydroBase). In addition, bug fixes accumulated since the previous +release in May 2014 have been included, and most of the source code +repositories moved from svn (hosted by the ET directly) to git (hosted by +BitBucket). + +For more detailed information about the "Herschel" release please read +the long release announcement on the Einstein Toolkit web pages: +http://einsteintoolkit.org/about/releases/ET_2014_11_announcement.php. + +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 +magneto-hydrodynamics code GRHydro. 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 +magneto-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 +six 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 +1212401/1212426/1212433/1212460 (Einstein Toolkit), and also by 0905046/0941653 +(PetaCactus) and 0710874 (LONI Grid). + +The Einstein Toolkit contains about 200 regression test cases. On a large +portion of the tested machines, almost all of these test suites pass, using both +MPI and OpenMP parallelization. + +The changes between this and the previous release include: + +=== Larger changes since last release === + +* Repositories + - Many repositories converted from Subversion to Git, including some + reorganization of thorns within arrangements. + - Deprecated components (still present) + - ADMCoupling + - ADMMacros + - New components: + - CUDA and OpenCL examples + - PAPI + - OpenBLAS + - MemSpeed<li> + - NaNCatcher + - Moved components: + - Almost all thorns except ExternalLibraries moved to Bitbucket + - GRHydro and GRHydro_InitData into EinsteinEvolve + - All Carpet thorns moved to Carpet arrangement (now on BitBucket) + +* Simfactory + - Source repository moved to BitBucket + - Updates to many machines + +* HDF5 + - Enable fortran interface by default, disable C++ interface by default. + +* MPI + - Rewrite MPI thorn configuration script to attempt to determine paths + automatically using mpicxx.<br> Automatic detection should succeed on most + machines (no MPI variable set in option list); if not, setting MPI_DIR to + the installation directory of the desired MPI installation should in most + cases suffice. + +* Cactus: + - Plan to change output filename format from implementation::groupname to + implementation__groupname. Introduced new parameter + IOUtil::out_group_separator which currently defaults to '::' to maintain + compatibility. The next release will change this to '__' for compatibility + with Windows filesystems. + +* Kranc: + - Kranc: Compatibility fixes for Mathematica 10 + +=== How to upgrade from Wheeler (ET_2014_05) === + +To upgrade from the previous release, use GetComponents with the new thornlist +to check out the new version. Switching to the new branch is not possible for +most repositories due to the repository move. + +See the [http://einsteintoolkit.org/download Download] page on the Einstein +Toolkit website for download instructions. + +=== Remaining issues with this release === + +* Certain machines need to be configured specially in Simfactory because the + remote directories cannot be determined automatically just from the user + name. See the Machine notes below. + +* Recovering with Carpet: Carpet stores metadata (such as the simulation time) + only for Carpet::max_timelevels time levels, although it is possible to + allocate more time levels. These additional time levels then cannot be + recovered; the symptom is an assertion failure during recovery. The solution + is to either increase Carpet::max_timelevels, or to decrease the number of + active time levels. + +=== Machine notes === + +Supported (tested) machines include: + +- Default Debian, Suse, Fedora and MacOS installations +- Bethe +- Bluewaters * +- Carver +- Datura +- Gordon +- Hopper +- Hydra +- Loewe +- Supermike II * +- Nvidia * +- Orca * +- Philip +- Shelob +- Stampede (CPU) * +- Trestles +- Zwicky + +A * means that a small number of tests fail on that machine. Almost all tests +pass on the other machines. + +* Stampede: defs.local.ini needs to have sourcebasedir = $WORK and basedir = + $SCRATCH/simulations configured for this machine. You need to determine + $WORK and $SCRATCH by logging in to the machine. + +All repositories participating in this release carry a branch ET_2014_11 +marking this release. These release branches will be updated if severe +errors are found. + +The "Herschel" Release Team on behalf of the Einstein Toolkit Consortium (2014-11-19) + + +Steven R. Brandt +Peter Diener +Roland Haas +Ian Hinder +Frank Löffler +Bruno C. Mundim +Erik Schnetter + +Nov 19, 2014 +