Re: [R] How to increase memory for R on Soliars 10 with 16GB and 64bit R

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Thu 14 Jul 2005 - 16:28:13 EST

Uwe Ligges wrote:

> Dongseok Choi wrote:
> 

>> Thank you very much for your help!!
>> Now, it runs without any problem.
>>
>> Is it going to be fixed in the next release?
> 
> 
> Of course, Brian

[hmmm, looks like some wrong shortcut has been used - and it must have been me who forgot to drink coffee before strating to post ...]

I meant to say: Of course, Brian already did, see the svn log:



r34947 | ripley | 2005-07-13 03:16:18 -0400 (Wed, 13 Jul 2005) | 1 line Changed paths:

    M /trunk/NEWS
    M /trunk/src/main/memory.c

correct typo for R_alloc on 64-bit systems

Uwe Ligges

>> Thanks again,
>> Dongseok
>>
>>
>>
>>
>> Dongseok Choi, Ph.D.
>> Assistant Professor
>> Division of Biostatistics
>> Department of Public Health & Preventive Medicine
>> Oregon Health & Science University
>> 3181 SW Sam Jackson Park Road, CB-669
>> Portland, OR 97239-3098
>> TEL) 503-494-5336
>> FAX) 503-494-4981
>> choid@ohsu.edu
>>
>>
>>>>> "Prof Brian Ripley" <ripley@stats.ox.ac.uk> 07/13/05 12:03 AM >>>
>>
>>
>> On Tue, 12 Jul 2005, Dongseok Choi wrote:
>>
>>
>>> My machine is SUN Java Workstation 2100 with 2 AMD Opteron CPUs and
>>> 16GB RAM.
>>> R is compiled as 64bit by using SUN compilers.
>>> I trying to fit quantile smoothing on my data and I got an message as
>>> below.
>>>
>>>
>>>> fit1<-rqss(z1~qss(cbind(x,y),lambda=la1),tau=t1)
>>>
>>>
>>> Error in as.matrix.csr(diag(n)) :
>>
>>
>> cannot allocate memory block of size 2496135168
>>
>>> The lengths of vector x and y are both 17664.
>>> I tried and found that the same command ran with x[1:16008] and
>>> y[1:16008].
>>> So, it looks to me a memory related problem, but I'm not sure how I
>>> can allocate memory block.
>>> I read the command line option but not sure what do to with it.
>>> Could you help me on this?
>>
>>
>>
>> It is trying to allocate a single memory block of size over 2^31-1
>> bytes. R internally uses ints for sizes of vectors and that is a limit
>> (see help("Memory-limits") ). However, it is intended that on 64-bit
>> systems that there is a limit here of 8*(2^31-1) but there was a
>> typo. Please change line 1534 of src/main/memory.c to
>>
>> #if SIZEOF_LONG > 4
>>
>> and re-compile.
>>
>
>



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