Bootstrapping can easily be sped up on multicore machines using parallel processing of the seperate bootstraps. As a proof of concept I slightly modified the boot.sem function to use multiple cores, using mclapply from the multicore package. Example code can be found on my website: http://www.jeroenooms.com/files/boot.sem.mc.R http://www.jeroenooms.com/files/semTest.R Bootstrapping using boot.sem.mc is exactly twice as fast as when using boot.sem on my machine (dual core). It might be nice to implement an option in bootstrapping functions to use multiple cores when available. ----- Jeroen Ooms * Dept. of Methodology and Statistics * Utrecht University Visit http://www.jeroenooms.com www.jeroenooms.com to explore some of my current projects. -- View this message in context: http://www.nabble.com/Multicore-bootstrap-tp25721774p25721774.html Sent from the R devel mailing list archive at Nabble.com.