[yt-users] ANN: Grackle 2.0 release

[Britton Smith]

Greetings,

I am very happy to announce the release of the Grackle chemistry and
cooling library version 2.0!  The Grackle is a library for chemistry and
radiative cooling in astrophysical simulations.

This release has the same functionality as version 1.0, but features a new,
easier to implement interface with a variety of working examples for C,
C++, and Fortran codes.  The user is no longer required to carry around the
internal data structures, making integration with simulation codes even
simpler.  The internal machinery has been made more robust and can now be
run reliably in both 32 and 64-bit modes.  The documentation has also been
significantly expanded and improved.  For more information, see here:
http://grackle.readthedocs.org/en/grackle-2.0/

In addition to the 2.0 release, we are simultaneously releasing version
1.1, which contains a few bug fixes and enhancements to the original 1.0
interface.  If your code uses version 1.0, it is recommended that you
update to version 1.1, which can be done by cloning a copy of the Grackle
repo and updating to the 1.1 version with:
https://bitbucket.org/grackle/grackle
cd grackle
hg up grackle-1.1
The documentation for Grackle 1.1 can be viewed at:
http://grackle.readthedocs.org/en/grackle-1.1/

Both Grackle 1.1 and 2.0 also feature the following enhancements:
- updated H-, H2, and HD chemistry and cooling rates from Simon Glover
- an option to build either static or dynamic libraries
- the sign of the cooling time is now preserved allowing the user to
discern between heating and cooling
- pre-made make files for NASA Pleiades, TACC Stampede, and NCSA Blue Waters

The Grackle can be obtained at: https://bitbucket.org/grackle/grackle
The documentation can be seen here:
http://grackle.readthedocs.org/en/latest/

Thanks to everyone who contributed to the release!

Regards,
Britton and the Grackle dev team
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