How do I parallelize in r on windows - example?

Question

How do I get parallelizaton of code to work in r in Windows? Include a simple example. Posting this self-answered question because this was rather unpleasant to get working.

Answer 1

I think these libraries will help you:

foreach (facilitates executing the loop in parallel)
doSNOW (I think you already use it)
doMC (multicore functionality of the parallel package)

May these article also help you

http://vikparuchuri.com/blog/parallel-r-loops-for-windows-and-linux/

http://www.joyofdata.de/blog/parallel-computing-r-windows-using-dosnow-foreach/