nbrOfWorkers | R Documentation |
Get the number of workers available
nbrOfWorkers(evaluator = NULL)
nbrOfFreeWorkers(evaluator = NULL, background = FALSE, ...)
evaluator |
A future evaluator function.
If NULL (default), the current evaluator as returned
by |
background |
If TRUE, only workers that can process a future in the background are considered. If FALSE, also workers running in the main R process are considered, e.g. when using the 'sequential' backend. |
... |
Not used; reserved for future use. |
nbrOfWorkers()
returns a positive number in {1, 2, 3, ...}
, which
for some future backends may also be +Inf
.
nbrOfFreeWorkers()
returns a non-negative number in
{0, 1, 2, 3, ...}
which is less than or equal to nbrOfWorkers()
.
plan(multisession)
nbrOfWorkers() ## == availableCores()
plan(sequential)
nbrOfWorkers() ## == 1
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