On 22/02/2012 08:23, Mathieu Ribatet wrote:
Dear all,
Now that R has OpenMP facilities,
Hmm, not exactly new.
I'm trying to use it for my own package but I'm still wondering if it
is safe to use random number generation within a OpenMP block. I looked
at the R writing extension document both on the OpenMP and Random
number generation but didn't find any information about that.
Could someone tell me if it is safe or not please ?
Using threads in compiled code called from R (e.g. pthreads or OpenMP)
is 'for experts only': we do not document which parts of R are or are
not thread-safe except via making the sources available. If you need to
ask then it is not safe for you, and in particular it would be unsafe to
call Get/PutRNGstate.
Best,
Mathieu
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