search for: 9e6

...-m64 -g -02" neither build uses a BLAS. Both builds are installed on the same machine, and the same disk. The machine has virtually no load; R is one of the only processes running during these timings: First comparison: solve on a large matrix >echo 'set.seed(1);M<-matrix(rnorm(9e6),3e3);system.time(solve(M))' | /disk/loneres01/R-2.1.0-32bit/bin/R -q --vanilla > set.seed(1);M<-matrix(rnorm(9e6),3e3);system.time(solve(M)) [1] 713.45 0.38 713.93 0.00 0.00 > >echo 'set.seed(1);M<-matrix(rnorm(9e6),3e3);system.time(solve(M))' | /disk/loneres01/R...

...ld uses a BLAS. Both builds are installed on the same > machine, and the same disk. The machine has virtually no load; R is > one of the only processes running during these timings: > > First comparison: solve on a large matrix > > >echo 'set.seed(1);M<-matrix(rnorm(9e6),3e3);system.time(solve(M))' | > /disk/loneres01/R-2.1.0-32bit/bin/R -q --vanilla > > set.seed(1);M<-matrix(rnorm(9e6),3e3);system.time(solve(M)) > [1] 713.45 0.38 713.93 0.00 0.00 > > > > >echo 'set.seed(1);M<-matrix(rnorm(9e6),3e3);system.time(solv...

...with attr(,'vmode')='boolean', i.e. we retain the information that there are no NAs. BUG FIXES o .onLoad() no longer calls installed.packages() which substantially improves startup time (thanks to Brian Ripley) P.P.S. Below are some timings in seconds at 3e6, 9e6, 27e6 and 81e6 elements from a Lenovo 410s notebook (3GB RAM, i5 m520, 2 real cores, 4 hyperthreaded cores, SSD drive, Windows7 32bit) Legend for software ram: new in-ram inplace operations receiving enough RAM to optimize for speed, not for memory ff: new on-disk operations limiting RAM f...

...with attr(,'vmode')='boolean', i.e. we retain the information that there are no NAs. BUG FIXES o .onLoad() no longer calls installed.packages() which substantially improves startup time (thanks to Brian Ripley) P.P.S. Below are some timings in seconds at 3e6, 9e6, 27e6 and 81e6 elements from a Lenovo 410s notebook (3GB RAM, i5 m520, 2 real cores, 4 hyperthreaded cores, SSD drive, Windows7 32bit) Legend for software ram: new in-ram inplace operations receiving enough RAM to optimize for speed, not for memory ff: new on-disk operations limiting RAM f...

Dear R-devel, Has anyone played with this? http://www.amd.com/us-en/Processors/DevelopWithAMD/0,,30_2252_2282,00.html <http://www.amd.com/us-en/Processors/DevelopWithAMD/0,,30_2252_2282,00.html> . I'll probably give it a shot... Best, Andy Andy Liaw, PhD Biometrics Research PO Box 2000, RY33-300 Merck Research Labs Rahway, NJ 07065 mailto:andy_liaw@merck.com