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