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Set current number of background processes for parcellfun.
The number of used background processes is determined by the first argument
to parcellfun
. If necessary, parcellfun
will spawn new
background processes, but it will never remove any of them, even if it
does not use all of them.
parcellfun_set_nproc
can be used to set the number of currently spawned
processes to nproc_arg. This may be used to remove all background
processes between calls to parcellfun
by specifying an nproc_arg
of zero.
The real number of spawned processes will be limited to the available processor cores and is returned.
See also: parcellfun.