Error: cannot allocate vector of size 3.4 Gb
this is converging to bioc. let me know what your sessionInfo() is and what type of CEL files you're trying to read, additionally provide exactly how you reproduce the problem. it appears to me, i'm not sure, that you start a fresh session of R and then tries to read in the data - how much resource do you have available when you try reading in the data? having 8GB RAM does not mean that you have 8GB when you tried the task. b
On Nov 7, 2009, at 12:08 AM, Peng Yu wrote:
On Fri, Nov 6, 2009 at 5:00 PM, Marc Schwartz <marc_schwartz at me.com> wrote:
On Nov 6, 2009, at 4:19 PM, Peng Yu wrote:
On Fri, Nov 6, 2009 at 3:39 PM, Charlie Sharpsteen <chuck at sharpsteen.net
wrote:
On Fri, Nov 6, 2009 at 1:30 PM, Peng Yu <pengyu.ut at gmail.com> wrote:
I run R on a linux machine that has 8GB memory. But R gives me an error "Error: cannot allocate vector of size 3.4 Gb". I'm wondering why it can not allocate 3.4 Gb on a 8GB memory machine. How to fix the problem?
Is it 32-bit R or 64-bit R? Are you running any other programs besides R? How far into your data processing does the error occur? The more statements you execute, the more "fragmented" R's available memory pool becomes. A 3.4 Gb chunk may no longer be available.
I'm pretty sure it is 64-bit R. But I need to double check. What command I should use to check? It seems that it didn't do anything but just read a lot of files before it showed up the above errors.
Check the output of: .Machine$sizeof.pointer If it is 4, R was built as 32 bit, if it is 8, R was built as 64 bit. See ?.Machine for more information.
It is 8. The code that give the error is listed below. There are 70
celfiles. I'm wondering how to investigate what cause the problem and
fix it.
library(oligo)
cel_files = list.celfiles('.', full.names=T,recursive=T)
data=read.celfiles(cel_files)
You can also check: R.version$arch and .Platform$r_arch which for 64 bit should show x86_64. HTH, Marc Schwartz
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