[R] memory limit problem

Roger D. Peng rpeng at jhsph.edu
Sun Apr 4 00:51:50 CEST 2004


You may want to try downloading the development version of R at 
http://cran.us.r-project.org/bin/windows/base/rdevel.html.  This 
version deals with Windows' deficiencies in memory management a 
little better.

-roger

Yi-Xiong Sean Zhou wrote:

> After memory.limit(1500), the error message still pop out:
> 
> Error: cannot allocate vector of size 11529 Kb
> 
> While 
> 
> 
>>memory.size()
> 
> [1] 307446696
> 
>>memory.limit()
> 
> [1] 1572864000
> 
> And the system is only using 723MB physical memory, while 2G is the total. 
> 
> Does anyone have a clue of what is going on? 
> 
> 
> Yi-Xiong
> 
> 
> -----Original Message-----
> From: Uwe Ligges [mailto:ligges at statistik.uni-dortmund.de] 
> Sent: Saturday, April 03, 2004 12:40 PM
> To: Yi-Xiong Sean Zhou
> Cc: r-help at stat.math.ethz.ch
> Subject: Re: [R] memory limit problem
> 
> 
> 
> Yi-Xiong Sean Zhou wrote:
> 
>>Could anyone advise me how to allocate 1.5Gbyte memory for R on a Dell
>>laptop running XP professional with 2G memory?
> 
> 
> See ?Memory or the the R for Windows FAQ, which tells you:
> 
> "2.7 There seems to be a limit on the memory it uses!
> 
> Indeed there is. It is set by the command-line flag --max-mem-size (see
> How do I install R for Windows?) and defaults to the smaller of the
> amount of physical
> RAM in the machine and 1Gb. [...]"
> 
> 
> 
>>I have tried
>>
>>"C:\Program Files\R\rw1081\bin\Rgui.exe" --max-vsize=1400M
>>
>>but I only get only 500MB for R actually.
>>
>>
>>I also tried memory.limit(2^30) in R and got error of:
> 
> 
> Well, you don't want to allocate 2^30 *Mega*Bytes (see ?memory.limit),
> do you? 
> 
> 
> Either use the command line flag --max-mem-size=1500M or within R:
>  memory.limit(1500)
> 
>  
> 
>>Error in memory.size(size) : cannot decrease memory limit
> 
> 
> Since your limit was roughly 10^6-times off the right one, you got an
> integer overflow internally, I think.
> 
> Uwe Ligges
> 
> 
>  
> 
>>Yi-Xiong
>>
>>        [[alternative HTML version deleted]]
>>
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> 
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> 
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