On 2/18/23 6:40 AM, Prof Brian Ripley wrote:
Are you using R.app (you failed to say)?
I'm "using the newest version of RStudio" [Version 2022.12.0+353
(2022.12.0+353)]. This means I am running R.app?
If so, have you acted on the documentation about 'app nap'? E.g. §4.1
of the R-admin manual.
Thanks for the term "app nap" and the reference to §4.1 of the
R-admin manual. I had not previously heard of "app nap", but that
sounds like what I've encountered, and that section of the manual
suggests that if I encounter this problem again, I can open a terminal
and enter:
defaults write org.R-project.R NSAppSleepDisabled -bool YES
Will it take effect immediately? Or will I need to restart R?
I've changed the code since I reported this problem, and I have not
encountered this problem since. I'm not sure, but when I noticed this
problem, I may have had "if(max(et3i)>1800)" [progress report every 30
minutes] instead of "if(max(et3i)>180)" [progress report every 3
minutes].[*] With luck, this change may fix this problem. If yes,
might you have any idea what the threshold might be?
Thanks very much.
Spencer Graves
[*] I'm not sure what threshold I was using when I encountered this
problem: 180 or 1800 seconds. I foolishly didn't save the output that
included lines like the following:
iscan = 22992 ; et3i = 180 26 104
iscan = 32124 ; et3i = 22 1 180
On 18/02/2023 12:31, Spencer Graves wrote:
Hello:
During a long compute (in a while loop), I've asked R to report
progress via:
# Progress report every 3 minutes
et3i <- proc.time()-startT3i
if(max(et3i)>180){
startT3i <- proc.time()
cat('iscan = ', iscan3, '; et3i = ',
round(et3i[1:3]), '\n')
}
When it's running properly, I get something like the following:
iscan = 22992 ; et3i = 180 26 104
However if I leave my computer running unattended, I can get
reports like the following:
iscan = 32124 ; et3i = 22 1 180
Evidently, macOS 11.7.4 decided NOT to give time to R.
Suggestions?
Thanks,
Spencer Graves
sessionInfo()
R version 4.2.2 (2022-10-31)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Big Sur 11.7.4
Matrix products: default
LAPACK:
/Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRlapack.dylib
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.2.2 tools_4.2.2 knitr_1.42 xfun_0.37
>
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