From ian.hinder@aei.mpg.de Mon Nov 17 07:00:23 2014
From: ian.hinder@aei.mpg.de
To: commits@lists.einsteintoolkit.org
Subject: [Commits] [svn:einsteintoolkit] www/about/releases/ (Rev. 1443)
Date: Mon, 17 Nov 2014 13:00:23 +0000
Message-ID: <20141117130023.8430C2C5F91@mail.einsteintoolkit.org>
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User: hinder
Date: 2014/11/17 07:00 AM

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+<?php $title=3D'Release Announcement';
+include_once($_SERVER['DOCUMENT_ROOT'].'/global/header.php');?>
+
+<p>We are pleased to announce the tenth release (code name
+"<a href=3D"http://en.wikipedia.org/wiki/XXX">XXX</a>") of the
+Einstein Toolkit, an open, community developed software infrastructure for
+relativistic astrophysics. This release includes XXX. In addition, bug fixes=
 accumulated since the
+previous release in May 2014 have been included.</p>
+
+<p>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.</p>
+
+<p>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.</p>
+
+<p>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.</p>
+
+<p>For more information about using or contributing to the Einstein Toolkit,=
 or to
+join the Einstein Toolkit Consortium, please visit our web pages at
+&lt;<a href=3D"http://einsteintoolkit.org">http://einsteintoolkit.org</a>&gt=
;.</p>
+
+<p>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).</p>
+
+<p>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.</p>
+
+<p>TODO: UPDATE CONTENT BELOW</p>
+
+<h4>The changes between this and the previous release include:</h4>
+
+<ul><li><b>Larger changes since last release</b></li></ul>
+
+<ul>
+ <li>Removed components
+  <ul>
+   <li>ADM</li>
+   <li>LegoExcision</li>
+  </ul>
+ </li>
+ <li>Deprecated components (still included, but don't use for new code)
+  <ul>
+   <li>ADMConstraints (use ML_ADMConstraints instead)</li>
+   <li>ADMCoupling</li>
+   <li>ADMMacros</li>
+   <li>DistortedBHIVP</li>
+   <li>IDAxiBrillBH</li>
+   <li>IDAxiOddBrillBH</li>
+   <li>RotatingDBHIVP</li>
+  </ul>
+ </li>
+ <li>New components:
+  <ul>
+   <li>CactusExamples: 10 small example thorns</li>
+   <li>TestMoL</li>
+   <li>CarpetExtra: 10 test thorns</li>
+   <li>IllinoisGRMHD (not enabled by default, proposed for the next release)=
</li>
+  </ul>
+ </li>
+ <li>Simfactory
+  <ul>
+   <li>updates to many machines</li>
+  </ul>
+ </li>
+ <li>Cactus flesh:
+  <ul>
+   <li>Cactus complex number arithmetic functions are deprecated</li>
+   <li>Drop explicit support for Fortran 77 in Cactus</li>
+   <li>Prevent Cactus from choking on very large parameter files</li>
+   <li>Update to work with Chemora. Not currently used by regular Cactus.</l=
i>
+   <li>The workaround CCTK_DISABLE_RESTRICT for bugs in the Intel compiler
+       is no longer necessary for version newer or equal 14, which is now
+       taken into account.</li>
+   <li>Support for Clang on OSX</li>
+  </ul>
+ </li>
+ <li>MoL: Automatically count number of evolved variables</li>
+ <li>ADMConstraints: remove support for conformal metrics</li>
+ <li>EOS_Omni: new c++ backend</li>
+ <li>GRHydro
+  <ul>
+   <li>rewrite major parts of the code in c++, both versions are still inclu=
ded,
+       the c++ version is not enabled by default yet (see parameter use_cxx_=
code).
+       The default will change for the next release and the Fortran version =
will
+       be removed after that.</li>
+   <li>Lots of smaller changes and bug fixes</li>
+  </ul>
+ </li>
+ <li>Kranc:=20
+   <ul>          =20
+     <li>Use a namespace to protect certain thorn functions; this
+     means that calculations can no longer be named the same as the
+     thorn</li>
+     <li>Add the ability to merge arbitrary files into the thorn at
+     Kranc time (e.g. for docs, tests)</li>
+     <li>Add ability to tile loops over grids</li>
+     <li>Add ability to count floating point operations in a
+     calculation</li>
+     <li>Display a function call backtrace when errors are detected
+     during running Kranc</li>
+     <li>Correct accidental interchange of sinh and cosh in vectorised
+     code</li>
+     <li>Substantial internal code cleanup and reorganization; no
+     intentional changes affecting the user as a result</li>
+     <li>Improvements to Chemora support (GPUs)</li>
+     <li>Improvements to script language support</li>
+     <li>Make GFOffset available to calculations</li>
+     <li>Improve support for xTensor as an alternative to
+     TensorTools</li>
+     <li>Include some regression tests for Kranc</li>
+     <li>Include some unit tests for Kranc</li>
+     <li>Make internal code generation significantly more robust</li>
+     <li>Remove old code, including obsolete Fortran code generation
+     which hasn't been used or worked for a long time</li>
+     <li>Remove almost all dependence on GenericFD; required code is
+     now embedded in the generated thorn</li>
+     <li>Many other small changes</li>
+   </ul>
+ </li>
+ <li>McLachlan: optimizations</li>
+ <li>Carpet
+  <ul>
+   <li>Changes to support accelerators (not used by default)</li>
+   <li>CarpetRegrid2: support Parity Symmetry thorn</li>
+   <li>Carpet: Apply boundary conditions during restricting</li>
+   <li>Include string null terminator in HDF5 attributes (only important if =
you happen to read them in your own scripts)</li>
+  </ul>
+ </li>
+</ul>
+
+<ul><li><b>How to upgrade from Noether (ET_2013_11)</b></li></ul>
+
+<p>To upgrade from the previous release, use GetComponents with the new thor=
nlist to check out the new version.</p>
+
+<p>See the <a href=3D"http://einsteintoolkit.org/download/">Download</a> pag=
e on the Einstein Toolkit website for download instructions.</p>
+
+<ul><li><b>Remaining issues with this release</b></li></ul>
+
+<ul>
+ <li> 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.</li>
+ <li> Recovering with Carpet: Carpet stores metadata (such as the simulation=
 time) only for Carpet::max_timelevels time levels, although it is possible t=
o allocate more time levels. These additional time levels then cannot be reco=
vered; the symptom is an assertion failure during recovery. The solution is t=
o either increase Carpet::max_timelevels, or to decrease the number of active=
 time levels.</li>
+</ul>
+
+<ul><li><b>Machine notes</b></li></ul>
+
+<p>Supported (tested) machines include:</p>
+
+<ul>
+ <li> Default Debian, Suse and Fedora installations</li>
+ <li> Bethe</li>
+ <li> Bluewaters *</li>
+ <li> Carver</li>
+ <li> Datura</li>
+ <li> Gordon</li>
+ <li> Hopper</li>
+ <li> Loewe</li>
+ <li> Lonestar *</li>
+ <li> Supermike II</li>
+ <li> Nvidia *</li>
+ <li> Orca *</li>
+ <li> Philip</li>
+ <li> Queenbee</li>
+ <li> Shelob</li>
+ <li> Stampede (CPU)</li>
+ <li> Supermuc</li>
+ <li> Titan</li>
+ <li> Trestles</li>
+ <li> Zwicky</li>
+</ul>
+<p>A * means that a small number of tests still fail on that machine. All te=
sts pass on the other machines.</p>
+<ul>
+ <li> LoneStar and 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 $SCRATCH by logging in to the machine.</li>
+</ul>
+
+<p>All repositories participating in this release carry a branch ET_2014_05
+marking this release.  These release branches will be updated if severe
+errors are found.</p>
+
+<p>The "Wheeler" Release Team on behalf of the Einstein Toolkit Consortium (=
2014-05-21)</p>
+
+<p>
+&nbsp;&nbsp;&nbsp;Peter Diener<br />
+&nbsp;&nbsp;&nbsp;Roland Haas<br />
+&nbsp;&nbsp;&nbsp;Ian Hinder<br />
+&nbsp;&nbsp;&nbsp;Frank L=C3=83=C2=B6ffler<br />
+&nbsp;&nbsp;&nbsp;Bruno C. Mundim<br />
+&nbsp;&nbsp;&nbsp;Erik Schnetter<br />
+</p>
+
+<p>May 21, 2014</p>
+
+<?php include_once($_SERVER['DOCUMENT_ROOT'].'/global/footer.php');?>


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