Nathaniel, that did the trick. Thanks so much for your help. Tom
$ export OPENBLAS_MAIN_FREE=1 $ R $ cat /proc/1538/status | grep Cpus_allowed Cpus_allowed: ffffffff Cpus_allowed_list: 0-31 On Aug 6, 2014, at 2:41 PM, Nathaniel Smith <n...@pobox.com> wrote: > On Wed, Aug 6, 2014 at 10:31 PM, Tom Kraljevic <t...@0xdata.com> wrote: >> >> Hi Nathaniel, >> >> >> >> Thanks for the suggestion. >> >> Im actually not really using R to do any real work. >> Im starting the R H2O package (a Java machine learning package) and >> forwarding all the work to H2O. >> >> >> >> This is the list of packages I have in R: >> >> >>> search() >> [1] ".GlobalEnv" "package:h2o" "package:tools" >> [4] "package:statmod" "package:rjson" "package:RCurl" >> [7] "package:bitops" "package:stats" "package:graphics" >> [10] "package:grDevices" "package:utils" "package:datasets" >> [13] "package:methods" "Autoloads" "package:base" >> >> >> And here is the /proc info >> >> tomk@mr-0xb4:~$ ps -efww | grep R | grep tomk >> tomk 8366 13845 1 14:25 pts/0 00:00:01 /usr/lib/R/bin/exec/R >> tomk 12960 27363 0 14:27 pts/3 00:00:00 grep --color=auto R >> tomk@mr-0xb4:~$ grep Cpus /proc/8366/status >> Cpus_allowed: 00000001 >> Cpus_allowed_list: 0 >> >> >> >> As you can see, my R is super vanilla. I havent configured hardly >> anything. Im just loading a few plain packages. > > My suggestion is just a guess, really, but: R always uses (and thus > loads by default) some underlying C library to implement its core > linear algebra routines. OpenBLAS is one of the libraries that it > might possibly be using, depending on how your R was set up. > > Anyway, it looks like the quick way to check for this particular > possible culprit is to run > > env OPENBLAS_MAIN_FREE=1 R > > and see if that helps. > > -n > > -- > Nathaniel J. Smith > Postdoctoral researcher - Informatics - University of Edinburgh > http://vorpus.org [[alternative HTML version deleted]]
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