[R-sig-Debian] R and multi cpu ATLAS

[Andrew Piskorski]

On Wed, Jun 02, 2010 at 01:27:48PM -0700, Jonathan Greenberg wrote:

> but it is APPEARING to only install a single threaded version of
> ATLAS.  Running the test:

I'd install the Ubuntu "libatlas-test" package.  It comes with a
lengthy list of command line programs for running specific Atlas speed
tests without/before you get R involved, e.g.:

  /usr/lib/libatlas-test/xzuumtstF

I have not used it much and don't know exactly how to interpret the
output, but at the very least you can run top while a test is going
and see how many cpu cores it's using.

-- 
Andrew Piskorski <atp at piskorski.com>
http://www.piskorski.com/