Eric, unless you tell us more precisely what you do and what machine you have we can't really help you. If you don't have enough RAM (>4GB) 64- bit R won't really help you as it ends up swapping all the time anyway (just look at the resource usage).
Cheers, Simon On May 23, 2007, at 11:15 AM, Eric Blanc wrote: > Hi, > > I encountered problems in using the experimental build R 2.5 for > x86_64 architecture. I have downloaded the framework from > > http://r.research.att.com/R-25-br-quad.tar.gz > > I tried to load large objects, (about 2GB each), but it hangs at > random points, apparently always after the 4GB mark (i.e. while > loading the 3rd object). I am monitoring the resources usage from > another terminal window (top), and the R process never completes > loading the 3rd object, the memory usage stops increasing before > reaching 6GB, even though the CPU usage by R is 100%. The time > required to load the 1st and 2nd objects are about 1 minute each, > while I stopped R after 30 minutes (without completing loading the > 3rd object). I had similar problems last december, when I tried to > compile R 2.4 from scratch using the instructions in > > https://stat.ethz.ch/pipermail/r-sig-mac/2006-November/003384.html > > Here is the sessionInfo(): > > R version 2.5.0 Patched (2007-05-02 r41420) > x86_64-apple-darwin8.9.1 > > locale: > C > > attached base packages: > [1] "stats" "graphics" "grDevices" "utils" "datasets" > "methods" > [7] "base" > > Has anybody tried to use large amounts of memory with R 2.5 x86_64 ? > I must add that I tried to load the same objects, on the same > machine, but using Ubuntu 7.4 x86_64, and it works on Ubuntu. It > seems to be a OS X problem (I am using 10.4.9). > > Thanks, > Eric > [[alternative HTML version deleted]] > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-mac > > _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-mac
