[Users] New Einstein Toolkit Release (Wheeler)

[Frank Loeffler]

We are pleased to announce the ninth release (code name "Wheeler") 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
November 2013 have been included.

For more detailed information about the "Wheeler" release please read
the long release announcement on the Einstein Toolkit web pages:
http://einsteintoolkit.org/about/releases/ET_2014_05_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).

All repositories participating in this release carry a branch ET_2014_05
marking this release.  These release branches will be updated if severe
errors are found.

Again, for more information regarding the release, in particular for a list
of larger changes, tested machines and remaining issues, go to

  http://einsteintoolkit.org/about/releases/ET_2014_05_announcement.php

The "Wheeler" Release Team on behalf of the Einstein Toolkit Consortium (2014-05-21)

Peter Diener
Roland Haas
Ian Hinder
Frank Löffler
Bruno C. Mundim
Erik Schnetter

May 21, 2014

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