We have an exciting new development to announce: support for parallelization via MPI in gretl. This is in CVS, the Windows snapshot, and the quartz snapshot for OS X. There's preliminary documentation with examples at http://users.wfu.edu/cottrell/tmp/gretl-mpi.pdf Here are the first two paragraphs just to give you an idea: <exerpt> As of March 2014 gretl CVS includes support for MPI. In brief, this takes the form of (a) a new, dedicated command-line program called gretlcli-mpi, which may be used in stand-alone fashion, plus (b) a facility for calling this program from within a regular hansl script (e.g. as opened in the GUI script editor). These things are described in detail below. What is MPI? To get the full story, see open-mpi.org or mpich.org; here we just describe the basics as they apply to gretl. MPI (Message Passing Interface) is a de facto standard that supports running a given (C or Fortran) program simultaneously on several cores in a given computer and/or on several networked computers. MPI provides means for dividing labor among the multiple nodes and for communicating data between them. It thereby supports a very flexible sort of parallelism... </exerpt> The hansl interface to MPI is not yet "set in stone"; we welcome comments. Allin and Jack