R future multisession limiting number of cpus

Question

I'm currently parallellising by using the future package as follows:

plan(multisession, gc = TRUE)
standardised_addresses1 <- future_lapply(1:20000, function(x) x*x) 

The problem is that it uses all the CPUs on the server. I would like to limit the number of CPUs used by setting a parameter like: workers = 18

Answer 1

You can use plan(multisession, gc = TRUE, workers = 18).