On 26 June 2009 at 07:40, Michael wrote: | Hi all, | | Lots of big IT companies are renting out their computing facilities. | Amazon has one such service. In my understanding, this will | dramatically improve the speed of my R program -- currently the cross | validation and model selection part is the bottle neck. It take a few | days to just finish optimal parameter tuning via CV. | | Could anybody shed some lights on this? Is it completely transparent | to move my R program to a rented parallel computing facility? | | Moreover, at my PC level, I have a 4-core PC, is there anything we | could do in R to speed up my CV programs?
Try this link: http://lmgtfy.com/?q=parallel+computing+with+R A survey paper on parallel computing with R by Schmidberger et al will be fortcoming shortly in Journal of Statistical Software -- that is at http://jstatsoft.org and a Google query will lead to preprints. Also note that R has a support site network called 'CRAN' which contains so called 'Task Views'. Amnong these you may find this one of interest: http://cran.r-project.org/web/views/HighPerformanceComputing.html As to your initial question: yes, people do use R on the Amazon service. Dirk -- Three out of two people have difficulties with fractions. ______________________________________________ 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.
