On Sat, Sep 05, 2009 at 08:31:18PM +0200, Peter Juhasz wrote: > I don't understand how is this possible. Maybe there is an issue of > thread-safety with the R backend, meaning that the two R *interpreter* > instances are talking to the same backend that's capable of processing > only one thing at a time?
No. Particularly since there is no R "backend" involved at all, not if you're starting up the standard R from Ubuntu 9.04 (rather than Rserve or something else unusual). People run multiple R processes concurrently on the same (multi-core) machine all the time, works fine. > Please see http://www.perlmonks.org/?node_id=792460 for an extended > discussion of the problem, and especially > http://www.perlmonks.org/?node_id=793506 for excerpts of output and > actual code. The most likely explanation seems to be that you have a bug in your Perl code. Have you tried using your Perl framework to fork something OTHER than R? Have you tried manually starting up two R processes and running your R code that way? And, what is the actual R code you're running? You don't seem to have shown it anywhere. -- Andrew Piskorski <a...@piskorski.com> http://www.piskorski.com/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
