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

[Michael Kubovy]

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.
_____________________________
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