Re: [Rd] Running two R instances at the same time

2009-09-08 Thread Peter Juhasz
On Mon, Sep 7, 2009 at 4:47 PM, Andrew Piskorskia...@piskorski.com wrote: 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

Re: [Rd] Running two R instances at the same time

2009-09-07 Thread Andrew Piskorski
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

Re: [Rd] Running two R instances at the same time

2009-09-07 Thread Andrew Piskorski
On Mon, Sep 07, 2009 at 05:36:38PM +0200, Peter Juhasz wrote: But please see http://www.perlmonks.org/index.pl?node_id=793907 , where I posted my R code in its simplest form along with an example run which exhibits the symptoms I originally wrote about. Ah, your two-process serialization is

[Rd] Running two R instances at the same time

2009-09-05 Thread Peter Juhasz
Reposting from R-help: Dear R experts, please excuse me for writing to the mailing list without subscribing. I have a somewhat urgent problem that relates to R. I have to process large amounts of data with R - I'm in an international collaboration and the data processing protocol is fixed, that

Re: [Rd] Running two R instances at the same time

2009-09-05 Thread Simon Urbanek
On Sep 5, 2009, at 2:31 PM, Peter Juhasz wrote: Reposting from R-help: Dear R experts, please excuse me for writing to the mailing list without subscribing. I have a somewhat urgent problem that relates to R. I have to process large amounts of data with R - I'm in an international