[R] Comparing execution times

[Steve Lianoglou]

Just a comment about your use of foreach:

On Mon, Apr 11, 2011 at 6:29 AM, Alaios <alaios at yahoo.com> wrote:
[snip]
> C.Case. Foreach is considered to be easier to be applied to manycores.
>
> foreach (i=1:dimz) %do% {
>    print(sprintf('Creating the %d map',i));
>    Shadowlist[,,i]<-f <- GaussRF(x=x, y=y, model=model, grid=TRUE,param=c(mean,variance,nugget,scale,Whit.alpha))
>
> }

You are still running this sequentially.

To run in parallel, you need load the appropriate parallel backend,
and use %dopar%:

library(doMC)
foreach(i=1:dimz) %dopar% { ... }

-- 
Steve Lianoglou
Graduate Student: Computational Systems Biology
 | Memorial Sloan-Kettering Cancer Center
 | Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact