[R] Does R work in 64 bit on apple G5?

[Christian Kaiser]

Hi,

I never used XGrid with R. But did you have a look at the Apple lists?
For example: 
<http://lists.apple.com/archives/xgrid-users/2004/Aug/msg00005.html>
Seems to work for them.

Christian

Le 23 mars 05, à 19:40, David Ruau a écrit :

> Thanks,
> I was sure the pre-compile version was 32 bit but not if you compile 
> it your self...
> It give the same infos when you run gc() or .Machine$sizeof.pointer 
> either on OS X client with a pre-compiled version or on OS X Server 
> with a home compile version.
> > .Machine$sizeof.pointer
> [1] 4
> > gc()
>          used (Mb) gc trigger (Mb)
> Ncells 140949  3.8     350000  9.4
> Vcells  52967  0.5     786432  6.0
>
> Did anybody use R with Xgrid?
> I am trying but it's not so easy to send the R job to the controller...
>
> David
>
> On Mar 23, 2005, at 18:44, Thomas Lumley wrote:
>
>> On Wed, 23 Mar 2005, David Ruau wrote:
>>
>>> Hi,
>>>
>>> I am working with R on 2xG5 1.8Ghz from Apple under 10.3.8
>>> The G5 chip is 64 bits but does R run in 64 bit or 32 under OS X?
>>> How can know?
>>> I think it run in 32 bits... but not sure...
>>
>> Under the current OS X it runs 32bit.  You can tell by looking at
>>      .Machine$sizeof.pointer
>> which is 4.
>>
>> The next version of OS X is advertised as having full 64bit support 
>> so this limitation will go away then.
>>
>> 	-thomas
>>
>>
>
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