Re: [R] Two R sessions on multicore computer seem to inhibit each other ?

Thanks to both of you, you are probably right that memory is the limiting factor. I have no knowledge about the available memory on the lab machines, but I will find out and make sure that this is the explanation. Best, Ulrike -- View this message in context: http://r.789695.n4.nabble.com/Two-R

Re: [R] Two R sessions on multicore computer seem to inhibit each other ?

lto:r-help-boun...@r-project.org] On Behalf Of Ulrike Grömping Sent: Thursday, July 12, 2012 10:55 AM To: r-help@r-project.org Subject: [R] Two R sessions on multicore computer seem to inhibit each other ? Dear R-helpers, I am puzzled by the following observation: On my home dual core Windows desktop co

Re: [R] Two R sessions on multicore computer seem to inhibit each other ?

what would be nice is to understand the amount of cpu time vs. the elapsed time consumed. you might be paging if you don't have sufficient real memory. I would venture a guess that the cpu time is very similar and the differnce is elapsed time due to some contention like memory. Sent from my

Re: [R] Two R sessions on multicore computer seem to inhibit each other ?

P.S.: I should have mentioned: The operating system is Windows XP. -- View this message in context: http://r.789695.n4.nabble.com/Two-R-sessions-on-multicore-computer-seem-to-inhibit-each-other-tp4636336p4636355.html Sent from the R help mailing list archive at Nabble.com. __

[R] Two R sessions on multicore computer seem to inhibit each other ?

Dear R-helpers, I am puzzled by the following observation: On my home dual core Windows desktop computer, I am used to running two R sessions in parallel. These do very well in using the full CPU of the computer (half each) and don't seem to slow each other down. Today I have started some large