On 2010-02-16 18:24:02 +0100, Christoph Groth wrote: > It's not broken but I would like the runs to be reproducible, i.e. to > get exactly (bit by bit) the same results when starting with the same > parameters and the same random seed on all the platforms I use. Then you should probably use CRlibm[1] (fast, for double precision) or MPFR[2] (much slower, because not targeted at a fixed precision). [1] https://lipforge.ens-lyon.fr/projects/crlibm/ [2] http://www.mpfr.org/ CRlibm is used by the LHC@home project at CERN precisely for this reason. -- Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)