User: knarf Date: 2016/06/15 04:47 AM

Added: /about/releases/ ET_2016_05_announcement.txt

Log: text version of release notes - need to be kept consistent with html version

File Changes:

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

File [added]: ET_2016_05_announcement.txt Delta lines: +139 -0 =================================================================== --- about/releases/ET_2016_05_announcement.txt (rev 0) +++ about/releases/ET_2016_05_announcement.txt 2016-06-15 09:47:48 UTC (rev 1581) @@ -0,0 +1,139 @@ +We are pleased to announce the twelfth release (code name +"<a href="https://en.wikipedia.org/wiki/Tycho_Brahe">Brahe</a>") of the +Einstein Toolkit, an open, community developed software infrastructure for +relativistic astrophysics. This release includes, among other things, + +... + +In addition, bug fixes accumulated since the previous +release in November 2015 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 +magneto-hydrodynamics code GRHydro. For parts of the toolkit, 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 === + + * Cactus Flesh + - Enable C++11 by default, and require it to be supported + Support bibtex in LaTeX thorn documentation + External libraries can specify additional paths (only) added as include path for Fortran. + - The 'checkout' target of 'make' has been removed, as it only supported + cvs, was unused and untested for a long time. +* IllinoisGRMHD/Convert_to_HydroBase: major update + SetMask_SphericalSurface: modify criterion for setting the mask to avoid problems with intermittant apparent horizon finder failures + More examples in the Einstein Toolkit Gallery (http://einsteintoolkit.org/about/gallery/) +* Simfactory + - New configurations: acrcluster, centos, cori, minerva, sunnyvale + - Updates to several machines (too many to list) + - stampede: fix core affinity settings + + +* New thorns or tools + - New thorn WatchDog: a thorn that terminates jobs that do not make progress + over a user-defined time frame, defined as time in between ANALYSIS steps. + +=== How to upgrade from Somerville (ET_2015_11) === + +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 repository moves. + +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, Ubuntu, Fedora, CentOS, and MacOS installations +- Bethe +- Bluewaters +- Comet +- Datura +- Fionn +- Gordon +- GPC +- Gullimin +- MP2 +- Nvidia +- Queenbee 2 +- Shelob +- Supermike II +- Stampede (CPU) +- Titan +- Zwicky + + +* 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_2016_05 +marking this release. These release branches will be updated if severe +errors are found. + +The "Brahe" Release Team on behalf of the Einstein Toolkit Consortium +(2016-06-15) + +Steven R. Brandt +Peter Diener +Roland Haas +Ian Hinder +Frank Löffler +Bruno C. Mundim +Erik Schnetter +Barry Wardell + +June 15, 2016 +