[R] Parallel Programming

[Jeff Newmiller]

Then don't do that.

Use your script file to define functions. Source that file before the loop to load them into memory. Call those functions from within your loop.
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Sent from my phone. Please excuse my brevity.

Tjun Kiat Teo <teotjunk at gmail.com> wrote:

>I am trying to do parallel programming and I tried this
>
>library(doSNOW)
>library(foreach)
>
>testfunc<-function(x){
>x<-x+1
>x
>}
>
>noc<-2
>
>cl <- makeCluster(do.call(rbind,rep(list("localhost"),noc)), type =
>"SOCK")
>registerDoSNOW(cl)
>clusterExport(cl=cl,c("testfunc.r"))
>
>
>testl<-foreach(pp=1:2) %dopar% {
>testfunc(pp)
>}
>
>
>And this works but if I try to enclose my commands inside a text file
>to be sourced it doesn't work
>
>noc<-2
>
>testfunc<-function(x){
>x<-x+1
>x
>}
>
>cl <- makeCluster(do.call(rbind,rep(list("localhost"),noc)), type =
>"SOCK")
>
>registerDoSNOW(cl)
>
>clusterExport(cl=cl,c("a","testfunc.r"))
>
>testl<-foreach(pp=1:2)) %dopar% {
>source("test.r")
>}
>
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