[Rd] parallel::detectCores(TRUE) gives: Error in system(cmd, TRUE) : error in running command

[William Dunlap]

The same is true in R-2.14.1 on  Ubuntu 12.04.4 LTS .  Put a trace on
system with
  trace(system, quote(print(command)))
  parallel::detectCores(TRUE)
and you will see the offending shell command.
Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Fri, Aug 22, 2014 at 1:03 PM, Marius Hofert
<marius.hofert at uwaterloo.ca> wrote:
> Hi,
>
> Both under the current R-devel (r66456) and a version from about 3
> months ago, I experience the following behavior:
>
>> parallel::detectCores(TRUE)
> Error in system(cmd, TRUE) : error in running command
>> traceback()
> 3: system(cmd, TRUE)
> 2: gsub("^ +", "", system(cmd, TRUE)[1])
> 1: parallel::detectCores(TRUE)
>>
>
> This is on Ubuntu 14.04. Does anybody else see this? [I currently have
> quite a heavy workload, otherwise I would have installed and tested it
> also under 3.1.1]
>
> Cheers,
>
> Marius
>
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