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FreeEOS-2.2.1 has been released
FreeEOS is a software library for calculating an equation of state for conditions in stellar interiors. The latest stable version of this library source code, FreeEOS-2.2.1, has been released on 2008-07-08.
The new release fixes all known bugs in FreeEOS-2.2.0 and has negligible changes (see http://freeeos.sourceforge.net/2.2.1-2.1.0.png) compared to FreeEOS-2.1.0, the last recommended release of FreeEOS. Calculations based on the new release converge for conditions significantly more dense than a 0.1-solar mass model, the approximate convergence limit for FreeEOS-2.1.0. However, the EOS1 free-energy model needs adjustment (still a work in progress) before it can produce smooth results at such high densities.
The new release has been tested extensively on a modern Linux platform (Debian testing) with the gfortran-4.3.1 compiler and less extensively on that same platform with the g77-3.4.6 compiler. See http://freeeos.sourceforge.net/announcement-2.2.1.html for more details about the release and its testing.
2008-07-09 03:30:44 UTC by airwin
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FreeEOS-2.2.0 has been released
FreeEOS is a software library for calculating an equation of state for conditions in stellar interiors. The latest stable version of this library source code, FreeEOS-2.2.0, has been released on 2007-07-24. The new release has an improved implementation of the EOS1 free-energy model which leads to systematic but negligible (http://freeeos.sf.net/2.2.0-2.1.0.png) changes compared to previous results. It also has a more robust convergence technique which allows FreeEOS calculations to converge for conditions significantly more dense than a 0.1-solar mass model. See the announcement (http://freeeos.sf.net/announcement-2.2.0.html) for the details of the new release which will be used primarily as a benchmark for the next more interesting release where I plan a significant adjustment of the EOS1 free-energy model.
2007-07-24 06:58:10 UTC by airwin
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FreeEOS-2.1.0 has been released
FreeEOS is a software library for calculating an equation of state for conditions in stellar interiors. The latest stable version of this library source code, FreeEOS-2.1.0, has been released on 2007-06-17. The principal changes to the software for this version of FreeEOS are a new API and new CMake-based build system. For more details about this release, please see http://freeeos.sourceforge.net/announcement-2.1.0.html.
2007-06-18 00:02:53 UTC by airwin
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FreeEOS switched to Subversion
The cvs2svn script helped to preserve all the commit and tagged release information that was in the previous CVS repository.
2007-04-01 05:20:06 UTC by airwin
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FreeEOS-2.0.0 has been released
FreeEOS is a software library for calculating an equation of state for conditions in stellar interiors. The latest stable version of this library source code, FreeEOS-2.0.0, has been released on 2006-01-15. The principal change to the software for this version of FreeEOS is a complete reorganization of the Newton-Raphson iteration scheme. The former scheme, which did an "outer" iteration to determine the degeneracy parameter, fl, and an "inner" iteration to determine auxiliary variables for fixed fl, has been replaced by a combined iteration to determine fl and auxiliary variables simultaneously. The new iteration scheme is significantly faster (a factor of two in some situations). For more details about this release, please see http://freeeos.sourceforge.net/announcement-2.0.0.html.
2006-01-16 00:47:34 UTC by airwin
