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<h1 align="center">Old News</h1>
<p><a href="index.html"><b>New News...</b></a></p>
<p><b>December 7, 2004:</b> Jonathan Thornburg is organising a <a
href="design-walkthrough.html">Carpet Design Walkthrough</a>,
which will take place December 13 to 15 at the AEI and will be
broadcast via the accessgrid and/or telephone.</p>
<p><b>Sepbember 18, 2004:</b> There is now a new repository for
the development version of Carpet. This repository is managed by
<a href="http://darcs.net/">darcs</a> instead of <a
href="https://www.cvshome.org/">CVS</a>. Darcs has a number of
advantages, such as being able to use it while offline, or keeping
some changes to yourself while developing. This development
version is <a href="get-carpet-darcs.html">publicly available</a>,
and we encourage you to <a
href="work-with-darcs.html">contribute</a>. Note that the stable
version of Carpet is still distributed via CVS.</p>
<p><b>August 24, 2004:</b> The version of Carpet in the CVS
repository is now stable. That means that this version will see
no substantial further development. One of its main goal is to
not change, so that parameter files continue to work unchanged
with identical results. We will continue to correct errors that
we find in this version of Carpet; however, if this would
necessitate major changes, and there is a work-around, then this
might not happen in the interest of stability.</p>
<p><b>July 31, 2004:</b> Carpet seems to have reached a point
where it is stable enough to be useful for at least some projects.
Consequently, people expressed the wish to have a version of
Carpet which is stable and sees no disrupting development. The
idea is to have two "branches" of Carpet: a stable version for
production use, and a development version which might not be as
stable. We plan to make the split in about three weeks. The
discussion about this is held on the mailing list; your input is
welcome.</p>
<p><b>April 7, 2004:</b> Up to now, all Carpet thorns have been
living in a single arrangement for Cactus. This caused problems,
because stable thorns, development thorns, and outdated thorns
were sitting next to each other, confusing newcomers. We have <a
href="get-carpet-darcs.html">moved the Carpet arrangement</a> to a
new repository and split it into four. Access to the old Carpet
arrangement has been disabled.</p>
<p><b>March 3, 2004:</b> We have recently had trouble with I/O
throuth the <a
href="http://zeus.ncsa.uiuc.edu/~jshalf/FlexIO/">FlexIO</a>
library. We suspect that it might have a bug that causes HDF5
output to fail under certain, random conditions. We have written
a new thorn CarpetIOHDF5 which uses the <a
href="http://hdf.ncsa.uiuc.edu/HDF5/">HDF5</a> library directly,
while remaining compatible to the FlexIO file format. Please test
this thorn, and report any problems or incompatibilities you
find.</p>
<p>In <b>January 2004</b>, <a
href="http://www.tat.physik.uni-tuebingen.de/~kobras/">Daniel
Kobras</a> set up <a href="http://bugs.carpetcode.org/">Bugzilla
for Carpet</a>. <a href="http://www.bugzilla.org/">Bugzilla</a>
is a bug-tracking system that will, so we hope, help us remember
what is missing or broken in Carpet.</p>
<hr />
<p>In <b>October 2003</b>, Erik Schnetter, Scott H. Hawley, and
Ian Hawke published the preprint "Evolutions in 3D numerical
relativity using fixed mesh refinement" as <a
href="http://arXiv.org/abs/gr-qc/0310042">gr-qc/0310042</a>. Its
main point is to present tests of Carpet with the BSSN code (AEI's
spacetime evolution code), and to show that mesh refinement does
not introduce instabilities.</p>
<p>In <b>August 2003</b>, <a
href="http://www.carpetcode.org/">these web pages</a> were
created.</p>
<p><b>May 2003</b> has informally been termed <a
href="CarpetMonth/index.html">"Carpet month"</a>. In a flurry of
activity, bugs were fixed and some features added. The BSSN code
of the numerical relativity group at the <a
href="http://www.aei.mpg.de/">AEI</a> now works together with
Carpet.</p>
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<address><a href="mailto:schnetter@uni-tuebingen.de">Erik Schnetter</a></address>
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