Earl, Reported memory sizes work ok on Vista 64. If I ask for 3.5M it will give it, even though I have only 2Mb of RAM. It devaults to 2Mb as expected.
Op Tue, 06 Nov 2007 19:38:07 +0100 schreef Earl F. Glynn <[EMAIL PROTECTED]>: > "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. > > -- Gemaakt met Opera's revolutionaire e-mailprogramma: http://www.opera.com/mail/ ______________________________________________ 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.
