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

For what it is worth. I was running into the same problem but couldn't get any of these to work. I eventually learned that Rstudio has a 'jobs' pane and can run models in the background each on it's own core. so what I did was divy-up my model into 10 segments (it was iterative over 100 vectors so 10 scripts of 10 vectors each) and ran each as a separate job. that way when one finished I could use the output from it immediately and I could keep working on my script without waiting for each model to finish. here is the link all about using jobs https://blog.rstudio.com/2019/03/14/rstudio-1-2-jobs/