We are pleased to announce the eleventh release (code name +"Somerville") = of the +Einstein Toolkit, an open, community developed software infrastructure for +relativistic astrophysics. This release includes, among other things, +improvements to the Cactus flesh, re-writes of the space-time solver McLachl= an, +a new GRMHD evolver (IllinoisGRMHD), and a multi-grid elliptic solver working +in Carpet (CTThorns). In addition, bug fixes accumulated since the previous +release in May 2015 have been included.
+ +The Einstein Toolkit is a collection of software components and tools for +simulating and analyzing general relativistic astrophysical systems that bui= lds +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 unde= rlying +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 inclu= de: +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 0905046/0941= 653 +(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.
+ +To upgrade from the previous release, use GetComponents with the new thor= nlist to check out the new version. Switching to the new branch is not possib= le for most repositories due to repository moves.
+ +See the Download pag= e on the Einstein Toolkit website for download instructions.
+ +Supported (tested) machines include:
+ +A * means that a small number of tests fail on that machine. Almost all t= ests pass on the other machines.
+All repositories participating in this release carry a branch ET_2015_11 +marking this release. These release branches will be updated if severe +errors are found.
+ +The "Somerville" Release Team on behalf of the Einstein Toolkit Consortiu= m (2015-11-11)
+ +
+ Steven R. Brandt
+ Peter Diener
+ Roland Haas
+ Ian Hinder
+ Frank L=C3=83=C2=B6ffler
+ Bruno C. Mundim
+ Erik Schnetter
+ Barry Wardell
+
November 11, 2015
+ + File [added]: ET_2015_11_announcement.txt Delta lines: +156 -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 --- about/releases/ET_2015_11_announcement.txt (rev 0) +++ about/releases/ET_2015_11_announcement.txt 2015-11-11 20:37:10 UTC (rev 1= 491) @@ -0,0 +1,156 @@ +We are pleased to announce the twelfth release (code name "Somerville") of t= he +Einstein Toolkit, an open, community developed software infrastructure for +relativistic astrophysics. + +This release includes, among other things,=20 +In addition, bug fixes accumulated since the previous release in May +2015 have been included. + +For more detailed information about the "Somerville" release please read +the long release announcement on the Einstein Toolkit web pages: +http://einsteintoolkit.org/about/releases/ET_2015_11_announcement.php. + +The Einstein Toolkit is a collection of software components and tools for +simulating and analyzing general relativistic astrophysical systems that bui= lds +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 unde= rlying +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 0905046/0941= 653 +(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: + +=3D=3D=3D Larger changes since last release =3D=3D=3D + +* Almost all repositories moved from the Einstein Toolkit subversion server + to bitbucket, with the ExternalLibraries being the only exception. Taking + this move as opportunity, some already existing thorns were moved to more + appropriate arrangements. + +* Cactus Flesh + - While not a particular user-visible change, the Cactus version number was + bumped to 4.3.0, as a new version of Cactus was released at the same time + as this Einstein Toolkit release. + - Thorns can specify versions for capabilities they provide, and thorns + using them can depend on specific versions of those. + - pthread support got moved into a thorn (ExternalLibraries/pthreads) +* McLachlan + - re-write of the BSSN thorns: some parameter names changed. Backwards + compatible parameter names exist, but the old are deprecated now. Please + switch to the new, more consistent, parameter names. + + +* New thorns or tools + - IllinoisGRMHD (and connected thorns): a new GRMHD code within the Einste= in + Toolkit. This isn't a drop-in replacement for GRHydro (as a lot of the + functionality, and parameters are different), but should be seen as + alternative. They are placed in the WVUThorns arrangement. + - CTThorns: Elliptic solver for Cactus/Carpet. This is a multi-grid solver, + and so far has mostly been used for cosmology-type simulations. + - AH2xdmf.py script (new utility within the AHFinderDirect thorn): + reads ASCII AHFinderDirect output files and combines data into hdf5 file + that can easily be visualized as time-series within tools like VisIt + - PITTNullCode/SphericalHarmonicReconGen: generic version of SphericalHarm= onicRecon + +=3D=3D=3D How to upgrade from Hilbert (ET_2015_05) =3D=3D=3D + +To upgrade from the previous release, use GetComponents with the new thornli= st +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. + +=3D=3D=3D Remaining issues with this release =3D=3D=3D + +* 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 tim= e) + 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 soluti= on + is to either increase Carpet::max_timelevels, or to decrease the number of + active time levels. + +=3D=3D=3D Machine notes =3D=3D=3D + +Supported (tested) machines include: + +- Default Debian, Ubuntu, Fedora and MacOS installations +- Bethe +- Bluewaters * +- Carver +- Comet +- Datura +- Edison +- Fermi +- Galileo +- Gordon +- Gullimin +- Hopper +- Nvidia +- Philip +- Queenbee 2 +- Shelob +- Supermike II +- Stampede (CPU) * +- 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 =3D $WORK and basedir= =3D + $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_2015_11 +marking this release. These release branches will be updated if severe +errors are found. + +The "Somerville" Release Team on behalf of the Einstein Toolkit Consortium +(2015-11-11) + + +Steven R. Brandt +Peter Diener +Roland Haas +Ian Hinder +Frank L=C3=83=C2=B6ffler +Bruno C. Mundim +Erik Schnetter +Barry Wardell + +November 11, 2015 + --===============3676623452195468178==--