From knarf at cct.lsu.edu Tue Oct 25 16:01:32 2011 From: knarf at cct.lsu.edu (Frank Loeffler) Date: Tue, 25 Oct 2011 16:01:32 -0500 Subject: [News] Einstein Toolkit release "Maxwell" Message-ID: <20111025210132.GM5629@topf.wg> We are pleased to announce the fourth release (code name "Maxwell") of the Einstein Toolkit, an open, community developed software infrastructure for relativistic astrophysics. This release includes substantial changes to the underlying AMR infrastructure Carpet and the simfactory tool. GRHydro is now officially released with support for magnetohydrodynamics. In addition, bug fixes accumulated since the previous release in April 2011 have been included. 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 hydrodynamics code GRHydro (an updated and extended version of the public release of the Whisky code). 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 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 five 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 . The Einstein Toolkit is primarily supported by NSF 0903973/0903782/0904015 (CIGR), and also by NSF 0701566/0855892 (XiRel), 0721915 (Alpaca), 0905046/0941653 (PetaCactus) and 0710874 (LONI Grid). The "Maxwell" Release Team on behalf of the Einstein Toolkit Consortium (2011-10-24) -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: Digital signature Url : http://www.cactuscode.org/pipermail/news/attachments/20111025/11b0cff4/attachment.bin From knarf at cct.lsu.edu Tue Oct 25 23:47:07 2011 From: knarf at cct.lsu.edu (Frank Loeffler) Date: Tue, 25 Oct 2011 23:47:07 -0500 Subject: [News] Cactus 4.0.0 release Message-ID: <20111026044706.GC3815@topf.wg> We are pleased to announce release 4.0.0 of the Cactus computational toolkit, an open source problem solving environment designed for scientists and engineers. This release includes new features like support for CUDA compilers, support for new architectures and comes bundled with supporting tools like GetComponents and Simfactory. Also, CactusExternal is now deprecated in favor of the better infrastructure in ExternalLibraries. In addition, bug fixes accumulated since the previous release in February 2009 have been included. Cactus provides computational scientists and engineers with a collaborative, modular and portable programming environment for parallel high performance computing. Cactus can make use of many other technologies for HPC, such as HDF5, PETSc and PAPI, and several application domains such as numerical relativity, computational fluid dynamics and quantum gravity are developing open community toolkits for Cactus. Cactus allows you to develop code in your language of choice: F77, F90, C, C++ are all supported ? developers write their own components, which we call "thorns" which are connected together by the Cactus "flesh". Developers and users can take advantage of a selection of existing computational thorns, as well as a growing number of domain specific thorns. Cactus runs on a wide range (just about all) architectures and operating systems. Cactus is being used as the basis for numerous projects in computational science, and new technologies such as Grid computing, parallel file I/O, adaptive mesh refinement are very quickly available to our users. Cactus is developed and supported by an international team of computational and computer scientists, based largely at the Center for Computation & Technology at Louisiana State University. For more information about using or contributing to the Cactus Framework, please visit our web pages at . The Cactus Framework is partially supported by NSF 0903973/0903782/0904015 (CIGR), and also by NSF 0701566/0855892 (XiRel), 0721915 (Alpaca), 0905046/0941653 (PetaCactus) and 0710874 (LONI Grid). The "4.0.0" Release Team on behalf of the Cactus Framework Group (2011-10-25) Significant Changes ------------------- - SILENT=no is deprecated, use VERBOSE=yes - Compilation is now much quieter by default - CactusExternal is deprecated, use ExternalLibraries - Cactus now handles parameter files with DOS line breaks - LocalInterp and LocalReduce are now in CactusNumerical - Cactus now accepts multi-line strings in parameter files. - Parameters in STORAGE specifications are now allowed. - Prototypes for scheduled functions are now generated, which might lead to compiler errors for incorrectly declared functions. - Cactus now checks for, and provides MAKE, TAR, GZIP_CMD, PATCH and GIT - Optional usage of capabilities is now possible. - New configuration flags were added, e.g. for debugging, profiling, openmp and warning options (r4656). - Documentation can now be built in pdf and html. - Fix/enable parallel builds for Cactus Release Trivia -------------- - The name of the release branches is Cactus_4.0.0 - The list of thorns included in this release can be downloaded from http://svn.cactuscode.org/Utilities/branches/Cactus_4.0.0/ThornLists/Cactus_4.0.0.th - The Einstein Toolkit (www.einsteintoolkit.org) released their current version "Maxwell" today as well. - A thornlist containing a large collection of components of the just released Cactus framework 4.0.0, the just-released Einstein Toolkit "Maxwell", and the Alpaca project with thorns also marked as compiling with the new Cactus release is available from: https://svn.cactuscode.org/Utilities/branches/Cactus_4.0.0/ThornLists/Cactus_ET_2011_10_Alpaca.th -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: Digital signature Url : http://www.cactuscode.org/pipermail/news/attachments/20111025/e72f34a2/attachment.bin