Skip to content
Prev 45269 / 63424 Next
Original Raw

crossprod(): g77 versus gfortran

Benjamin Tyner 
Hi

I've got two builds of R, one using g77 (version 3.4.6) and the other
using gfortran (version 4.1.2). The two builds are otherwise identical
as far as I can tell. The one which used g77 performs crossprod()s
roughly twice as fast as the gfortran one. I'm wondering if this rings a
bell with anyone, and if so, are you aware of any configure settings
which will improve the performance when using gfortran. This is on RHEL 5.

Regards
Ben

Thread (4 messages)

Benjamin Tyner crossprod(): g77 versus gfortran Mar 4 Brian Ripley crossprod(): g77 versus gfortran Mar 4 Benjamin Tyner crossprod(): g77 versus gfortran Mar 5 Simon Urbanek crossprod(): g77 versus gfortran Mar 5