Change number of workers.

[brgew]

Hi,

I would like to change within a function only the number of required workers so that a user can over-ride locally the number of workers that was set globally. (I want to keep the global strategy.) This might look like

plan(multicore, workers = 5)  # global setting

do_something <- function(arg1, arg2, number_of_cores) {
  ...
  oplan <- future::plan()
  <change temporarily the number of workers to number_of_cores>  # local setting
  on.exit(future::plan(oplan, add=TRUE)
  ...
}

do_something(x, y, 3)

I appreciate your consideration and guidance.

Thank you.