Threads used by backtests and ensembles

Backtests and ensembles fit on several threads: by default, all the cores of the machine. foresight_threads(n) limits them to n, for the whole session; foresight_threads(0) removes the limit. The results do not depend on the number of threads.

Usage

foresight_threads(n = NULL)

Arguments

n

The most threads to use, or 0 for all cores. NULL changes nothing.

Value

The number of threads in use after the call; invisibly when it was set.

Details

When the package is loaded the limit comes from the option foresightr.threads or, failing that, from the environment variable OMP_THREAD_LIMIT; under R CMD check it is 2.

Examples

foresight_threads()
#> [1] 4