R devel - May 2006 - increase size of the limit of memory (PR#8885)

Full_Name: Shouhao Zhou
Version: 2.2.1
OS: windows
Submission from: (NULL) (128.59.110.149)


if you run the following code in R after version 2.1.1:

n.sims<-6000;n<-30000
y<-array(NA,c(n.sims,n))

with output:

Error: cannot allocate vector of size 703125 Kb
In addition: Warning messages:
1: Reached total allocation of 509Mb: see help(memory.size) 
2: Reached total allocation of 509Mb: see help(memory.size) 

then I try to increase the size by command which made sense in R before version
2.0.1 and can help to allocate vector y of size 703125 Kb:

memory.limit(14000000000)

but now we get the output in such away:

Error in memory.size(size) : don't be silly!: your machine has a 4Gb address
limit

What can I do now to allocate the vector y<-array(NA,c(6000,30000)) in the
latest version of R?

The help page says

     size: numeric. If 'NA' report the memory size, otherwise request a
           new limit, in Mb.  Values of up to 4096 are allowed, but see
           Details.

You requested a limit of 14 billion megabytes of memory, which was indeed 
silly.

Please do read the R FAQs and the posting guide as you are asked before 
posting.

On Sun, 21 May 2006, zhou at stat.columbia.edu wrote:
> Full_Name: Shouhao Zhou
> Version: 2.2.1
> OS: windows
> Submission from: (NULL) (128.59.110.149)
>
>
> if you run the following code in R after version 2.1.1:
>
> n.sims<-6000;n<-30000
> y<-array(NA,c(n.sims,n))
>
> with output:
>
> Error: cannot allocate vector of size 703125 Kb
> In addition: Warning messages:
> 1: Reached total allocation of 509Mb: see help(memory.size)
> 2: Reached total allocation of 509Mb: see help(memory.size)
>
> then I try to increase the size by command which made sense in R before
version
> 2.0.1 and can help to allocate vector y of size 703125 Kb:
>
> memory.limit(14000000000)
>
> but now we get the output in such away:
>
> Error in memory.size(size) : don't be silly!: your machine has a 4Gb
address
> limit
>
> What can I do now to allocate the vector y<-array(NA,c(6000,30000)) in
the
> latest version of R?
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
>
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595