On Thu, Oct 9, 2008 at 9:02 AM, Dirk Eddelbuettel <[EMAIL PROTECTED]> wrote: > You could have a look at the slides from my UseR! 2008 tutorial [1] on > 'high-performance computing with R' which covered Open MPI / Rmpi and > includes examples. > > It may just be that you are expecting something that cannot be done. There > is no 'R session on 8 processors'. R is still single-threaded, and neither > Open MPI nor the Sun Grid Engine changes that. But what you can do is to > start R on a node in your cluster and then use Open MPI to distribute load > across the 8 processors. There are examples in my slides.
So R uses MPI for task distribution only? That sounds like not very fine grained parallelism. Can I use rsh to start remote R instead of MPI? --Chi > > Hope this helps, Dirk > > [1] http://dirk.eddelbuettel.com/presentations.html > > -- > Three out of two people have difficulties with fractions. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
