Peter Dalgaard wrote > Is this floating point bound? (When you say 30 factors does that mean > 30 parameters or factors representing a much larger number of groups). > If it is integer bound, I don't think you can do much better than > increase CPU speed and - note - memory bandwidth (look for large-cache > systems and fast front-side bus). To increase floating point > performance, you might consider the option of using optimized BLAS > (see the Windows FAQ 8.2 and/or the "R Installation and > Administration" manual) like ATLAS; this in turn may be multithreaded > and make use of multiple CPUs or multi-core CPUs.
By "factors" I mean "parameters". I apologise for the confusion. This is floating point bound, so ATLAS might be a good idea. Before I put a lot of work into investigating multiple processors, I need to know, is the bottleneck with GLM going to be BLAS? Thank you very much for your help! George Russell ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
