[BioC] Affymetrix 500k SNP chips -- copy number/LOH/deletions

[James W. MacDonald]

errr, on second thought, I think it is more like 1.72 x 10^10 Gb RAM, 
but what's 3 orders of magnitude between friends? ;-D

James W. MacDonald wrote:
> Sean Davis wrote:
> 
>>
>>On 8/17/06 9:34 AM, "Stephen Henderson" <s.henderson at ucl.ac.uk> wrote:
>>
>>
>>
>>>I have 4Gb of memory and I'm running linux. Unfortunately its not 64-bit so Im
>>>not sure if R can even use all that memory. I understand that 8Gb is the
>>>maximum even on 64-bit though, is that not true?
>>
>>
>>I don't think that is true in general, but it could be true for your
>>hardware, I suppose.
> 
> 
> No it's not true. A 32 bit OS can address 2^32 bits of RAM, whereas a 64 
> bit OS can address 2^64 bits of RAM (1.84 x 10^13 Gb). As Sean notes, 
> this is hardware dependent - for instance, the box on my desk right now 
> can only take 16 Gb RAM in 8 X 2Gb sticks. However there are comps that 
> will hold enough RAM that percentage-wise, the only real cost is for the 
> RAM itself.
> 
> Jim
> 
> 
> 
>>Sean
>>
>>_______________________________________________
>>Bioconductor mailing list
>>Bioconductor at stat.math.ethz.ch
>>https://stat.ethz.ch/mailman/listinfo/bioconductor
>>Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor
> 
> 
> 


-- 
James W. MacDonald, M.S.
Biostatistician
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623


**********************************************************
Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues.