R help - Feb 2006 - what are the limits on R array sizes?

I have some computers with a massive amount of memory, and I have some 
jobs that could use very large matrix sizes.  Can R handle matrices of 
larger than 2GB?  If I were to create a matrix of 1,000,000 x 1,000, it 
would use about 8GB.  Can R work with an array of that size if I have 
compiled R on an IA64 Linux system with 15GB of RAM?

Mike

On Wed, 8 Feb 2006, Mike Miller wrote:
> I have some computers with a massive amount of memory, and I have some
> jobs that could use very large matrix sizes.  Can R handle matrices of
> larger than 2GB?  If I were to create a matrix of 1,000,000 x 1,000, it
> would use about 8GB.  Can R work with an array of that size if I have
> compiled R on an IA64 Linux system with 15GB of RAM?
Yes. See ?"Memory-limits".

help.search("limits") gets you there.

-- 
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