[R] Testing memory limits in R??

[Scott Zentz]

Hello Everyone!

    Thanks for all your replies! This was very helpful!  I found that 
there seems to be a limitation to only 32GB of memory which I think will 
be fine. I was able to consume the 32GB of memory with the following:
Start R with the following command: R --max-vsize 55000M
then within R run
x=rep(0.1,2.141e9)
and watch the process with top and R will consume about 32GB of 
memory... Hopefully this will be enough for the researchers ;)

Thanks!
-scz

Scott Zentz wrote:
> Hello Everyone,
>
>    We have recently purchased a server which has 64GB of memory 
> running a 64bit OS and I have compiled R from source with the 
> following config
>
> ./configure --prefix=/usr/local/R-2.9.1 --enable-Rshlib 
> --enable-BLAS-shlib --enable-shared --with-readline --with-iconv 
> --with-x --with-tcktk --with-aqua --with-libpng --with-jpeglib
>
> and I would like to verify that I can use 55GB-60GB of the 64GB of 
> memory within R. Does anyone know how this is possible? Will R be able 
> to access that amount of memory from a single process? I am not an R 
> user myself but I just wanted to test this before I turned the server 
> over to the researchers..
>
> Thanks!
> -scz
>
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