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diff --git a/Carpet/CarpetWeb/index.html b/Carpet/CarpetWeb/index.html index 00cf19354..3912d095d 100644 --- a/Carpet/CarpetWeb/index.html +++ b/Carpet/CarpetWeb/index.html @@ -33,14 +33,14 @@ <a href="humour.html">Other Carpets</a></p> <p><b>Mailing Lists</b><br /> -<a href="http://lists.carpetcode.org/listinfo/developers/">Subscribe</a><br /> -<a href="http://lists.carpetcode.org/archives/developers/">List Archive</a><br /> -<a href="http://lists.carpetcode.org/listinfo/carpet-cvs/">CVS messages</a><br /> -<a href="http://lists.carpetcode.org/listinfo/carpet-darcs/">darcs/git messages</a></p> +<a href="http://cactuscode.org/community/mailinglists/">List Management</a><br /> +<a href="http://cactuscode.org/mailman/listinfo/developers">Subscribe</a><br /> +<a href="http://cactuscode.org/pipermail/developers/">List Archive</a><br /> +</p> <p><b>Development</b><br /> <a href="get-carpet.html">Download</a><br /> -<a href="http://bugs.carpetcode.org/">Bug Reports</a><br /> +<a href="http://trac.einsteintoolkit.org/">Bug Reports</a><br /> <a href="contributors.html">Contributors</a></p> <!-- These are outdated <a href="feature-requests.html">Missing features</a><br /> @@ -121,127 +121,35 @@ Barcelona<br /> <h2>News</h2> - <table><tr><td valign="top"> - <p><b>March 30, 2009:</b> We have ported Carpet to - the <a href="http://www-03.ibm.com/systems/deepcomputing/bluegene/">BlueGene/P</a> - architecture, using - the <a href="http://www.alcf.anl.gov/resources/storage.php">Surveyor</a> - system at the <a href="http://www.alcf.anl.gov/">ALCF</a>. The - graph to the right shows preliminary performance and scaling - results, comparing different compilers and options - (<a href="http://gcc.gnu.org/">gcc</a>, <a href="http://www.ibm.com/software/awdtools/xlcpp/">IBM's - XL compilers</a> without OpenMP, and IBM's XL compilers - with <a href="http://www.openmp.org/">OpenMP</a>, which required - reducing the optimisation level). For these benchmarks, the - problem size was reduced to about one eighth of the standard - size, using 13<sup>3</sup> grid points per core. The results - show that Carpet scales fine up to the size of the total machine - (4k cores), but further work on compiler options is - required.</p> - </td><td valign="top"> - <p><a href="scaling-surveyor/results-surveyor.pdf"><img - src="scaling-surveyor/results-surveyor.png" - width="180" alt="AMR benchmark results" /></a></p> - </td></tr></table> - - <table><tr><td valign="top"> - <p><b>March 20, 2009:</b> Carpet can now perform <i>performance - experiments</i> by artificially increasing the size or the - number of MPI messages exchanged between processes. This can - help determine whether either the communication bandwidth or the - communication latency are a bottleneck of a particular - simulation. The figure to the right shows results for the - standard <a href="http://www.cct.lsu.edu/~eschnett/McLachlan/">McLachlan</a> - AMR benchmark run on - the <a href="http://en.wikipedia.org/wiki/Cray_XT4">Cray XT4</a> - <a href="http://www.nics.tennessee.edu/computing-resources/kraken">Kraken</a>, using 25<sup>3</sup> grid points per core. These - results indicate that the additional latency from increasing the - number of messages has no significant effect, and hence the - benchmark is bandwidth limited for this problem size.</p> - </td><td valign="top"> - <p><a href="scaling-whatif/results-whatif.pdf"><img - src="scaling-whatif/results-whatif.png" - width="180" alt="AMR benchmark results" /></a></p> - </td></tr></table> - - <table><tr><td valign="top"> - <p><b>March 16, 2009:</b> Erik Schnetter and Steve Brandt - published a white - paper <a href="http://www.cct.lsu.edu/CCT-TR/CCT-TR-2009-4"><i>Relativistic - Astrophysics on the SiCortex Architecture</i></a>. This paper - expands on a - <a href="http://www.sicortex.com/news_events/campaigns/lsu_webinar">webinar</a> - by Erik and Steve that was hosted - by <a href="http://www.sicortex.com/">SiCortex</a>.</p> - <p>The graph at the right shows Carpet's parallel scalability - using - the <a href="http://www.cct.lsu.edu/~eschnett/McLachlan/">McLachlan</a> - code with nine levels of AMR for a set of current HPC systems. - The results have been rescaled to the architectures' theoretical - single-core peak performance. This makes it possible to compare - Carpet's scalability on different architectures. (It is not - possible to compare the systems' absolute performance in this - figure.)</p> - </td><td valign="top"> - <p><a href="sicortex/results-scaled.pdf"><img - src="sicortex/results-scaled.png" - width="180" alt="AMR benchmark results" /></a></p> - </td></tr></table> - - <table><tr><td valign="top"> - <p><b>November 9, 2008:</b> In the context of - the <a href="http://www.cct.lsu.edu/xirel/">XiRel project</a>, - we re-designed Carpet's communication layer to avoid many - operations that had a cost of O(<var>N</var>), growing linearly - with the number of MPI processes. Such costs are generally not - acceptable when running on several thousand cores, and have to - be reduced e.g. to O(log <var>N</var>). Carpet now stores the - communication schedule (mostly) in a distributed manner, - increasing performance and reducing its memory requirement. - These improvements are currently being tested; preliminary - scaling results are shown in the figure to the right.</p> - </td><td valign="top"> - <p><a href="scaling-improved/results-best.pdf"><img - src="scaling-improved/results-best.png" - width="180" alt="AMR benchmark results" /></a></p> - </td></tr></table> - - <p><b>June 25, 2008:</b> We are happy to announce - the <a href="http://www.cct.lsu.edu/~eschnett/SimFactory"><i>Simulation - Factory</i></a>, a tool to help access remote HPC systems, - manage source trees, and submit and control simulations. The - Simulation Factory contains a set of abstractions of the tasks - which are necessary to set up and successfully finish numerical - simulations using the Cactus framework. These abstractions hide - tedious low-level management tasks, they capture "best - practices" of experienced users, and they create a log trail - ensuring repeatable and well-documented scientific results. - Using these abstractions, many types of potentially disastrous - user errors are avoided, and different supercomputers can be - used in a uniform manner.</p> - - <table><tr><td valign="top"> - <p><b>March 29, 2008:</b> We have benchmarked McLachlan, a new - BSSN-type vacuum Einstein code, using Carpet for unigrid and AMR - calculations. We compare several current large machines: - <a href="http://www.nersc.gov/nusers/systems/franklin/">Franklin</a> - (NERSC), <a href="http://www.loni.org/systems/system.php?system=QueenBee">Queen - Bee</a> (LONI), - and <a href="http://www.tacc.utexas.edu/services/userguides/ranger/">Ranger</a> - (TACC). - <!-- These machines have different architectures and - interconnects.--></p> - </td><td valign="top"> - <p><a - href="scaling-amr/results-carpet-1lev.pdf"><img - src="scaling-amr/results-carpet-1lev.png" width="180" - alt="Unigrid benchmark results" /></a></p> - </td><td valign="top"> - <p><a - href="scaling-amr/results-carpet-9lev.pdf"><img - src="scaling-amr/results-carpet-9lev.png" width="180" - alt="AMR benchmark results" /></a></p> - </td></tr></table> + <p><b>February 15, 2011:</b> + The <a href="get-carpet.html">download instructions</a> for Carpet + now also point to <a href="http://code.google.com/">Google + Code</a>, where the current development version is availble for + download.</p> + + <p><b>November 23, 2010:</b> We are pleased to announce the second + release (code name + "<a href="http://en.wikipedia.org/wiki/Subrahmanyan_Chandrasekhar">Chandrasekhar</a>") + of the Einstein Toolkit, an open, community developed software + infrastructure for relativistic astrophysics. This release is + mainly a maintenance release incorporating fixes accumulated since + the previous release in June 2010, as well as additional test + suites.</p> + + <p><b>August 30, 2011:</b> Notes from our + <a href="http://ccrg.rit.edu/~carpet/wiki/Main_Page">Carpet + Developer Workshop</a> at RIT are now available.</p> + + <p><b>June 17, 2010:</b> We are pleased to announce the first + release (code name + "<a href="http://en.wikipedia.org/wiki/Bohr-Einstein_debates">Bohr</a>") + of the Einstein Toolkit, an open, community developed software + infrastructure for relativistic astrophysics. The Einstein Toolkit + is a collection of over 130 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 Whisky + hydrodynamics code, and the Carpet AMR infrastructure.</p> <p><a href="olds.html"><b>Old News...</b></a></p> @@ -291,6 +199,7 @@ Barcelona<br /> <h2>Interacting with the developers</h2> +<!-- outdated <p>Most discussions about Carpet, i.e. user questions, feature requests, and bug reports, are held on the Carpet developers' mailing list <a @@ -300,7 +209,17 @@ Barcelona<br /> You will also find the mailing list archive there. We thank <a href="http://www.tat.physik.uni-tuebingen.de/~kobras/">Daniel Kobras</a> for managing the mailing list server.</p> - +--> + <p>Most discussions about Carpet, i.e. user questions, feature + requests, and bug reports, are held on the Cactus developers' + mailing + list <a href="mailto:developers@cactuscode.org">developers@cactuscode.org</a>. + You can subscribe and unsubscribe from + our <a href="http://cactuscode.org/community/mailinglists/">list + management web page</a>. You will also find the mailing list + archive there.</p> + +<!-- outdated <p>We have started to use <a href="http://www.bugzilla.org/">Bugzilla</a> to keep track of requested features or reported bugs in Carpet. You can submit or @@ -309,6 +228,12 @@ Barcelona<br /> have created an account there. The old <a href="feature-requests.html">list of missing features</a> have not yet been moved over to Bugzilla.</p> +--> + + <p>We use <a href="http://trac.edgewall.org/">TRAC</a> to keep + track of requested features or reported bugs in Carpet. You can + submit or comment on issues from + our <a href="http://trac.einsteintoolkit.org/">TRAC site</a>.</p> <hr /> @@ -493,7 +418,7 @@ Barcelona<br /> <p> <!-- Created: Tue Aug 12 12:12:08 CEST 2003 --> <!-- hhmts start --> -Last modified: Mon Mar 30 2009 +Last modified: Tue Feb 15 2011 <!-- hhmts end --> </p> |