Are you using an optimized BLAS for both builds? That's one possibility. Also,
64-bit builds use up more memory initially since the pointers are bigger. I've
tried both 64-bit and 32-bit builds on Sparc/Solaris and haven't seen any slowdown.
-roger
Jason Liao wrote:
Hello, everyone! I guess no one is still using R on Sun Sparc these
days. But our department has a (pretty new) two-CPU Sun server. We
recently compiled R as a 64 bit application and expected a performance
boost. But it runs 25-30% slower than the 32 bit version of R. Anyone
knows why this is so? Thanks!
Jason
=====
Jason Liao, http://www.geocities.com/jg_liao
Dept. of Biostatistics, http://www2.umdnj.edu/bmtrxweb
University of Medicine and Dentistry of New Jersey
phone 732-235-5429, School of Public Health office
phone 732-235-8611, Cancer Institute of New Jersey office
moble phone 908-720-4205
______________________________________________
[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
______________________________________________
[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
