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

[Simon Urbanek]

I'm not sure - what is the question here? It works for me on a both  
PowerPC G5 and Mac Pro (R 2.4.1 CRAN binary):

 > fm1 <- lmer(Reaction ~ Days + (Days|Subject), sleepstudy)
 > fm1
Linear mixed-effects model fit by REML
Formula: Reaction ~ Days + (Days | Subject)
    Data: sleepstudy
   AIC  BIC logLik MLdeviance REMLdeviance
1754 1770 -871.8       1752         1744
Random effects:
Groups   Name        Variance Std.Dev. Corr
Subject  (Intercept) 610.835  24.7151
           Days         35.056   5.9208  0.067
Residual             655.066  25.5943
number of obs: 180, groups: Subject, 18

Fixed effects:
             Estimate Std. Error t value
(Intercept)  251.405      6.820   36.86
Days          10.467      1.546    6.77

Correlation of Fixed Effects:
      (Intr)
Days -0.137
 > gc()
          used (Mb) gc trigger (Mb) max used (Mb)
Ncells 966960 25.9    1368491 36.6  1265230 33.8
Vcells 523595  4.0    1031040  7.9   755843  5.8
 > sessionInfo()
R version 2.4.1 (2006-12-18)
i386-apple-darwin8.8.1

locale:
C

attached base packages:
[1] "stats"     "graphics"  "grDevices" "utils"     "datasets"   
"methods"
[7] "base"

other attached packages:
        lme4      Matrix     lattice
"0.9975-11"  "0.9975-8"   "0.14-16"

Cheers,
Simon

On Jan 29, 2007, at 10:40 AM, Benilton Carvalho wrote:

> So, I decided to give it a try (and just now noticed that this is the
> example in lmer2)
>
> I just gave it a try on a PPC G4 and it worked as expected. I'm
> copying R-sig-mac (sorry for the crosspost) as the experts there
> might give you a better suggestion.
>
>> fm1 <- lmer2(Reaction ~ Days + (Days|Subject), sleepstudy)
>> fm1
> Linear mixed-effects model fit by REML
> Formula: Reaction ~ Days + (Days | Subject)
>     Data: sleepstudy
>    AIC  BIC logLik MLdeviance REMLdeviance
> 1754 1770 -871.8       1752         1744
> Random effects:
> Groups   Name        Variance Std.Dev. Corr
> Subject  (Intercept) 612.128  24.7412
>            Days         35.049   5.9202  0.066
> Residual             654.970  25.5924
> Number of obs: 180, groups: Subject, 18
>
> Fixed effects:
>              Estimate Std. Error t value
> (Intercept)  251.405      6.825   36.84
> Days          10.467      1.545    6.77
>
> Correlation of Fixed Effects:
>       (Intr)
> Days -0.137
>> sessionInfo()
> R version 2.5.0 Under development (unstable) (2007-01-03 r40349)
> powerpc-apple-darwin8.8.0
>
> locale:
> C
>
> attached base packages:
> [1] "stats"     "graphics"  "grDevices" "utils"     "datasets"
> "methods"
> [7] "base"
>
> other attached packages:
>         lme4      Matrix     lattice
> "0.9975-11"  "0.9975-8"   "0.14-16"
>
>
> On Jan 29, 2007, at 7:40 AM, Michael Kubovy wrote:
>
>> 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
>> USPS:     P.O.Box 400400    Charlottesville, VA 22904-4400
>> Parcels:    Room 102        Gilmer Hall
>>         McCormick Road    Charlottesville, VA 22903
>> Office:    B011    +1-434-982-4729
>> Lab:        B019    +1-434-982-4751
>> Fax:        +1-434-982-4766
>> WWW:    http://www.people.virginia.edu/~mk9y/
>>
>
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