>>> .Internal(setMaxNumMathThreads(1)); .Internal(setNumMathThreads(1)); m <- >>> matrix(rnorm(810000),900,900); system.time(d <- dist(m)) >>> >>> user system elapsed >>> 3.510 0.013 3.524 >>> >>> .Internal(setMaxNumMathThreads(5)); .Internal(setNumMathThreads(5)); m <- >>> matrix(rnorm(810000),900,900); system.time(d <- dist(m)); >>> >>> user system elapsed >>> 3.536 0.007 1.321
These results are obtained on: Model Name: Mac Pro Model Identifier: MacPro4,1 Processor Name: Quad-Core Intel Xeon Processor Speed: 2.93 GHz Number Of Processors: 2 Total Number Of Cores: 8 L2 Cache (per core): 256 KB L3 Cache (per processor): 8 MB Memory: 12 GB Processor Interconnect Speed: 6.4 GT/s Boot ROM Version: MP41.0081.B07 SMC Version (system): 1.39f5 SMC Version (processor tray): 1.39f5 Thank you for your comments Regards -- Pawel Matykiewicz http://www.neuron.m4u.pl http://www.linkedin.com/in/pawelmatykiewicz ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
