R help - Nov 2003 - Is R multi-threaded?

Hi,

I couldn't find a good answer for this anywhere in the docs, and I've
looked through the code for 1.8.0;  could someone who knows please
confirm that R (for unix) is *not* currently multi-threaded?

(I'm having trouble dynamically loading a C++ shared lib, and I want to
make sure it's not thread-related)

Thanks,
Annie

R for Unix is not of itself multi-threaded, but it can call libraries 
which are (notably a multi-threaded BLAS).

R for Windows is multi-threaded.

On Mon, 24 Nov 2003 flyfish72 at fastmail.fm wrote:
> I couldn't find a good answer for this anywhere in the docs, and
I've
> looked through the code for 1.8.0;  could someone who knows please
> confirm that R (for unix) is *not* currently multi-threaded?
> 
> (I'm having trouble dynamically loading a C++ shared lib, and I want to
> make sure it's not thread-related)
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

In the "Writing extensions for R" document, there is a part that
reads:

"Using C++ iostreams, as in this example, is best avoided.  There is no 
guarantee that the output will appear in the R console..."

Does R do anything that would potentially cause a stream:: method in a 
dynamically-loaded library to get stuck waiting for a mutex?  Or is this 
just a warning about potential formatting issues?

(on linux)

Thank you!
Annie