Just out of curiosity, what system do you have? These are the results in my machine:
> system.time(exp(m), gcFirst=TRUE) user system elapsed 0.52 0.04 0.56 > library(pnmath) > system.time(exp(m), gcFirst=TRUE) user system elapsed 0.660 0.016 0.175 Juan Pablo > >> system.time(exp(m), gcFirst=TRUE) > user system elapsed > 0.108 0.000 0.106 >> library(pnmath) >> system.time(exp(m), gcFirst=TRUE) > user system elapsed > 0.096 0.004 0.052 > > (elapsed time about 2x faster). Both BLAS and pnmath make much better > use of resources, since they do not require multiple R instances. > ______________________________________________ R-help@r-project.org 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.
