[Rcpp-devel] OpenMP and Rinside

[Peter Aberline]

> From: rcpp-devel-bounces at lists.r-forge.r-project.org [mailto:rcpp-devel-bounces at lists.r-forge.r-project.org] On Behalf Of David Ibarra Gómez

> I was mixing RInside with OpenMP. When I try to run the software, I get a message in three of the four threads (4 Cores Multicore).

> Exception caught: can only have one RInside instance
> Exception caught: can only have one RInside instance
> Exception caught: can only have one RInside instance


Hi David,

It's my understanding is that the RInside class is a singleton as R is strictly single threaded. The message  you are seeing if an exception thrown because the singleton constraint is violated.

There are some examples that ship with RInside which demonstrate the use of multiple RInside processes using MPI. They might help you achieve the parallelism you are wanting.

Correct me if I'm wrong, Dirk.

Thanks
Peter


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