Dear all, I wanted to use ATLAS to increase the computational speed of my program. I have installed R in a straightfoward way with .exe file (not building from source).
However, after getting the P4 ATLAS Rblas.dll file from the CRAN directory bin/windows/contrib/ATLAS, and replacing the default Rblas.dll file in my R home directory under bin/, the speed actually decreased by 3% compared with the default Rblas file!! So what am I doing wrong? Is the above the correct procedure for using ATLAS? Or, is my machine not a Pentium 4 and hence the ATLAS file that I got from CRAN is not appropriate? If the issue lies in the processor, then please kindly let me know where to get the correct ATLAS file for the following computers: IThe first one is Pentium D 3.2 ghz, the second is a MacBook 1.83ghz dual-boot and I am running R in windows. Thank you! Jonathan Zhang Marketing Division Columbia Business School ______________________________________________ [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.
