setFixest_nthreads function

Sets/gets the number of threads to use in fixest functions

Sets/gets the default number of threads to used in fixest estimation functions. The default is the maximum number of threads minus two.

setFixest_nthreads(nthreads, save = FALSE)

getFixest_nthreads()

Arguments

• nthreads: The number of threads. Can be: a) an integer lower than, or equal to, the maximum number of threads; b) 0: meaning all available threads will be used; c) a number strictly between 0 and 1 which represents the fraction of all threads to use. If missing, the default is to use 50% of all threads.
• save: Either a logical or equal to "reset". Default is FALSE. If TRUE then the value is set permanently at the project level, this means that if you restart R, you will still obtain the previously saved defaults. This is done by writing in the ".Renviron" file, located in the project's working directory, hence we must have write permission there for this to work, and only works with Rstudio. If equal to "reset", the default at the project level is erased. Since there is writing in a file involved, permission is asked to the user.

Examples

# Gets the current number of threads
(nthreads_origin = getFixest_nthreads())

# To set multi-threading off:
setFixest_nthreads(1)

# To set it back to default at startup:
setFixest_nthreads()

# And back to the original value
setFixest_nthreads(nthreads_origin)

Author(s)

Laurent Berge