But parallel::detectCores(TRUE) is a call of desparation: this ran
code intended for FreeBSD.
If all else fails read the help:
It has methods to do so for Linux, OS X, FreeBSD, Solaris, Irix
and Windows. ‘detectCores(TRUE)’ could be tried on other
Unix-alike systems.
On Fri, 22 Aug 2014, Marius Hofert wrote:
Thanks, Bill. The output is:
trace(system, quote(print(command)))
parallel::detectCores(TRUE)
Tracing function "system" in package "base"
[1] "system"
Tracing system(cmd, TRUE) on entry
[1] "/usr/sbin/sysctl -n hw.ncpu 2>/dev/null"
Error in system(cmd, TRUE) : error in running command
On Fri, Aug 22, 2014 at 6:13 PM, William Dunlap <wdun...@tibco.com> wrote:
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.hof...@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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Brian D. Ripley, rip...@stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford
1 South Parks Road, Oxford OX1 3TG, UK
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