[Rcpp-devel] OpenMp and IntegerVector

[Whit Armstrong]

you can also use intel TBB, just depends on your preference for syntax
I suppose.  I've never tried to use openMP threads, but intel tbb
works quite nicely.

example here based off of rrcov package:
https://github.com/armstrtw/rrcov/blob/master/src/covOPW.cpp#L58

Sorry, Dirk, this doesn't use Rcpp (I was trying not to completely
rewrite the original source) but seemed quite relevant to this
thread...

An RcppArmadillo version of rrcov would be a nice addition and easy to
do from forking my fork.

-Whit


On Tue, Mar 11, 2014 at 4:15 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
>
> On 11 March 2014 at 13:06, Hao Ye wrote:
> | > Just accessing / setting data structures should work (but test first...),
> | > RNGs is clearly asking for trouble.
> |
> | FWIW, I've been able to get this working using Rcpp and C++11 threads. (but using native C++ data structures, of course)
>
> Sure, just as there are CRAN packages doing OpenMP with RNGs.  But your threads,
> be it pthreads or C++11 threads are not calling the RNG supplied by R, are they?
>
> If so, I'd love to see an example / would invite you to post an Rcpp Gallery article.
>
> Dirk
>
> --
> Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com
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