"jim holtman" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > --max-mem-size=N > (Windows only) Specify a limit for the amount of memory to be used > both for R objects and working areas. This is set by default to the > smaller of 1.5Gb24 and the amount of physical RAM in the machine, and > must be between 32Mb and 3Gb.
Something seems to have changed in R 2.6.0 -- the limit is no longer 3 GB. On a PC with 3.5 GB with R 2.5.1 using default command line: Default > memory.limit() [1] 1610612736 With --max-mem-size=3000M on the command line: > memory.limit() [1] 3145728000 Let's see what happens with R 2.6.0 on the same 3.5 GB PC (Windows XP): Default command line: > memory.limit() [1] 1535.875 Note: The format of the return value is now in MB instead of bytes. With --max-mem-size=3000M on the command line: Error message: WARNING: --max-mem-size=3000M: too large and taken as 2047M > memory.limit() [1] 2047.875 This value is less than the value shown in R 2.5.1 (after converting both to the same basis). But was this change a "fix" to report that a Windows process only has a 2 GB address space? That is, the value returned by R 2.5.1 of 3145728000 wasn't strictly correct? efg Earl F. Glynn Scientific Programmer Stowers Institute ______________________________________________ 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.
