[Users] New Einstein Toolkit Release

[Frank Loeffler]

We are pleased to announce the eighth release (code name "Noether") of the
Einstein Toolkit, an open, community developed software infrastructure for
relativistic astrophysics.

This release includes various improvements to the Cactus flesh, Carpet and
GRHydro. In addition, bug fixes accumulated since the previous release in May
2013 have been included.

For more detailed information about the "Noether" release please read the long
release announcement on the Einstein Toolkit web pages:
http://einsteintoolkit.org/about/releases/ET_2013_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 testsuites pass, using both
MPI and OpenMP parallelization.

Supported (tested) machines include:

- Default Debian, Suse and Fedora installations
- Bethe
- Bluewaters
- Datura
- Kraken
- Loewe
- Lonestar
- Supermike II
- Nvidia
- Philip
- Queenbee
- Stampede
- Titan
- Trestles
- Zwicky

All repositories participating in this release carry a branch ET_2013_11
marking this release.  These release branches will be updated if severe errors
are found.

The "Noether" Release Team on behalf of the Einstein Toolkit Consortium (2013-11-26)

Tanja Bode
Peter Diener
Roland Haas
Ian Hinder
Frank Löffler
Bruno Mundim
Christian D. Ott
Erik Schnetter

November 26, 2013

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