[Rcpp-devel] Some OpenMP tips (forwarded message from Simon Urbanek)

[Dirk Eddelbuettel]

Simon puts things quite clearly on the line in this r-devel mailing list
post.  This is more or less what I was trying to recommend to Michael
earlier, but Simon is of course a greater authority than me in these matters.

Rcpp should help in this. Transfer all data into pure C++ / STL containers,
so OpenMP work and transfer back.  Performance may well be better than the
serial case yet still be clearly sublinear as in the example I posted / added
to the Rcpp SVN a few days ago.

Dirk


-------------- next part --------------
An embedded message was scrubbed...
From: Simon Urbanek <simon.urbanek at r-project.org>
Subject: Re: [Rd] How to safely using OpenMP pragma inside a .C() function?
Date: Tue, 30 Aug 2011 01:36:24 +0100
Size: 2243
URL: <http://lists.r-forge.r-project.org/pipermail/rcpp-devel/attachments/20110829/9e695673/attachment.eml>
-------------- next part --------------

-- 
Two new Rcpp master classes for R and C++ integration scheduled for 
New York (Sep 24) and San Francisco (Oct 8), more details are at
http://dirk.eddelbuettel.com/blog/2011/08/04#rcpp_classes_2011-09_and_2011-10
http://www.revolutionanalytics.com/products/training/public/rcpp-master-class.php