we have two server, one is unix (1280M) and linux (2319872k), how can I set the max?
for the Linux one,
R --max-vsize=2319872k --max-nsize=2319872k
Then I use
mem.limits()
nsize vsize NA NA
It seems the limits are not set at all
I want to define an array
a<-array(0,rep(2,28))
Well, you need 4 * 2^28 = 1073741824 Byte to store the data for that array (if numeric). Internally, the data will probably be copied at least once from one object to another, so already consuming ~ 2Gb and you have reached the limit in this case. I am not surprised.
Uwe Ligges
Error: cannot allocate vector of size 2097152 Kb
next I type
a<-array(0,rep(2,27))
It is ok. then
a<-array(0,rep(2,28))
Error: vector memory exhausted (limit reached?)
Is there any way to help? In fact, I am now using some array(0,rep(2,21)), the program run some time then fail, I can not trace what happened since I run R in batchs under Linux. Does this happen probably due to the memory exhaust? (for some array(0,rep(2,10)), my codes work well).
From: Prof Brian Ripley <[EMAIL PROTECTED]> To: Z P <[EMAIL PROTECTED]> CC: [EMAIL PROTECTED] Subject: Re: [R] memory limit problem Date: Mon, 5 Apr 2004 07:12:02 +0100 (BST)
On Linux, you can set memory limits in the shell you use to run R (via command limit or ulimit, depending on the shell).
Yes, there can be a need to set memory limits on Linux too. However, the
problem was that (apparently, as we have not had a clear report), the
available memory was not all being used, and that is not seen on Linux (or
Solaris or ...).
On Mon, 5 Apr 2004, Z P wrote:
> Do you mean in Linux, there is no need to set memory limit? If needed, how
> to set it? Thanks.
> >From: "Roger D. Peng" <[EMAIL PROTECTED]>
> >
> >In general, this is not an R problem, it is a Windows problem. I find that
> >these types of memory problems do not appear on Linux, for example.
-- Brian D. Ripley, [EMAIL PROTECTED] 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
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