Re: [R] lmer2 error under Mac OS X on PowerPC G5 but not on Dual-Core Intel Xeon

From: Michael Kubovy <kubovy_at_virginia.edu>
Date: Mon 29 Jan 2007 - 12:40:18 GMT

On Jan 28, 2007, at 9:39 PM, Benilton Carvalho wrote:

> This seems to be due to the fact that you didn't have enough memory
> when running lmer2.
>
> I might be wrong, but I think Calloc tries to get contiguous
> memory, so this might the problem.
>
> If you are positive that you have enough memory, a gc() might help.

I have 2 GB memory on this machine. Should be enough, no?

 > gc()

           used (Mb) gc trigger (Mb) max used (Mb) Ncells 1008175 27.0 1476915 39.5 1368491 36.6 Vcells 540055 4.2 1031040 7.9 1031026 7.9  > (fm1 <- lmer2(Reaction ~ Days + (Days|Subject), sleepstudy)) Error in as.double(start) : Calloc could not allocate (903190944 of 4) memory

> On Jan 28, 2007, at 8:35 PM, Michael Kubovy wrote:
>
>>> (fm1 <- lmer2(Reaction ~ Days + (Days|Subject), sleepstudy))
>> Error in as.double(start) : Calloc could not allocate (888475968 of
>> 4) memory
>> *************************
>>> sessionInfo()
>> R version 2.4.1 (2006-12-18)
>> powerpc-apple-darwin8.8.0
>>
>> locale:
>> C
>>
>> attached base packages:
>> [1] "grid" "datasets" "stats" "graphics" "grDevices"
>> "utils" "methods"
>> [8] "base"
>>
>> other attached packages:
>> lme4 Matrix xtable latticeExtra lattice
>> gridBase MASS
>> "0.9975-11" "0.9975-8" "1.4-3" "0.1-4" "0.14-16"
>> "0.4-3" "7.2-31"
>> JGR iplots JavaGD rJava
>> "1.4-15" "1.0-5" "0.3-5" "0.4-13"
>> *************************
>> lmer runs the example w/o a problem
>>
>> I just tried to run it on on Intel-based MacPro, and lmer2 ran
>> without a hitch.



Professor Michael Kubovy
University of Virginia
Department of Psychology
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