Version 2.0 available here to download:
Last update Wednesday, August 15, 2007.
Changes since first release:
Version 2: Can be compiled for parallel processing with OpenMp.
Version 1.1: Prior on the Hubble constant clarified. -Hloose suggested as the default option.
Included z=0.2 BAO distance scale from 2dF as an additional prior.
The code can handle an arbitrary number of input distance modulus data (entered as an input file SNdata.dat) and various existing cosmological information. Future versions of the code will be updated to increase the options related to priors and to include additional distance scales, for example, for BAO measurements.
The code is extremely simple to de-compress. You just need a piece of software that can handle tar or tarballs, and it shouldn't be much more difficult than downloading and installing software for playing Poker DE or iTunes. Then the challenge of how you're going to use the code is up to you.