[R-SIG-Mac] Problems with big objects in R-2.5 x86_64

[Simon de Bernard]

Actually, I reported an example that consistently crashes but it is  
pretty easy to construct one that gets into an infinite loop:

 > l<-list(1)
 > while(1) { print(object.size(l)/1024/1024); l<-c(l,l) }

(Just duplicate the list instead of triplicating it)

That's why I think we are facing the same ugly bug :-(

Best,

Simon.

Le 23 mai 07 à 19:56, Simon Urbanek a écrit :

>
> On May 23, 2007, at 1:19 PM, Simon de Bernard wrote:
>
>> Based on what Eric says (symptoms and the fact that it works on  
>> the SAME machine under ubuntu), it looks a lot like what I  
>> reported on april the 7th...
>>
>
> What you reported was a crash, what he reports is ... I don't know  
> what ;). And that's why I need more info ...
>
> Cheers,
> Simon
>
>
>>
>> Le 23 mai 07 à 19:03, Simon Urbanek a écrit :
>>
>>> Eric,
>>>
>>> unless you tell us more precisely what you do and what machine you
>>> have we can't really help you. If you don't have enough RAM  
>>> (>4GB) 64-
>>> bit R won't really help you as it ends up swapping all the time
>>> anyway (just look at the resource usage).
>>>
>>> Cheers,
>>> Simon
>>>
>>>
>>> On May 23, 2007, at 11:15 AM, Eric Blanc wrote:
>>>
>>>> Hi,
>>>>
>>>> I encountered problems in using the experimental build R 2.5 for
>>>> x86_64 architecture. I have downloaded the framework from
>>>>
>>>> http://r.research.att.com/R-25-br-quad.tar.gz
>>>>
>>>> I tried to load large objects, (about 2GB each), but it hangs at
>>>> random points, apparently always after the 4GB mark (i.e. while
>>>> loading the 3rd object). I am monitoring the resources usage from
>>>> another terminal window (top), and the R process never completes
>>>> loading the 3rd object, the memory usage stops increasing before
>>>> reaching 6GB, even though the CPU usage by R is 100%. The time
>>>> required to load the 1st and 2nd objects are about 1 minute each,
>>>> while I stopped R after 30 minutes (without completing loading the
>>>> 3rd object). I had similar problems last december, when I tried to
>>>> compile R 2.4 from scratch using the instructions in
>>>>
>>>> https://stat.ethz.ch/pipermail/r-sig-mac/2006-November/003384.html
>>>>
>>>> Here is the sessionInfo():
>>>>
>>>> R version 2.5.0 Patched (2007-05-02 r41420)
>>>> x86_64-apple-darwin8.9.1
>>>>
>>>> locale:
>>>> C
>>>>
>>>> attached base packages:
>>>> [1] "stats"     "graphics"  "grDevices" "utils"     "datasets"
>>>> "methods"
>>>> [7] "base"
>>>>
>>>> Has anybody tried to use large amounts of memory with R 2.5  
>>>> x86_64 ?
>>>> I must add that I tried to load the same objects, on the same
>>>> machine, but using Ubuntu 7.4 x86_64, and it works on Ubuntu. It
>>>> seems to be a OS X problem (I am using 10.4.9).
>>>>
>>>> Thanks,
>>>> Eric
>>>> 	[[alternative HTML version deleted]]
>>>>
>>>> _______________________________________________
>>>> R-SIG-Mac mailing list
>>>> R-SIG-Mac at stat.math.ethz.ch
>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>>>
>>>>
>>>
>>> _______________________________________________
>>> R-SIG-Mac mailing list
>>> R-SIG-Mac at stat.math.ethz.ch
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>
>>
>>
>