[R] RAM usage

Vaidotas Zemlys mpiktas at delfi.lt
Tue Oct 22 11:33:14 CEST 2002


Brian D. Ripley wrote:

 >> I did not tell my problem, because I thought that it was more or less
 >> irrelevant to the memory usage problems I was experiencing. My intention
 >> was to ask about how R manages memory and is there something special >about
 >> that management everyone should know, but I don't know. I'm sorry if my
 >> letter was a bit unclear, English is not my native language.

 > But you did claim `must be used'.  That really is rarely the case, and
 > the skill in programming R (or S) is use memory within the resources
 > available.

Yes I did write 'must be used', yet I did not want to claim anything. 
Really, I did not want to express so strictly. I should of used 'is used', 
or something else. As I said English is not my native language:)

I tried to run the same calculations with initial matrix size of 7500 rows 
and 70 columns, on Linux machine as you suggested.  Debian Woody, R version 
1.5.1 with 256 MB RAM and 256 MB Swap, everything worked fine, not like on 
Windows 2000 Professional machine with 256 RAM. It seems that Win2k is 
really missing something with memory management, or R windows build is 
somewhat different from linux build?

Thanks for everybody's answers

Vaidotas Zemlys

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