Set or get number of threads that lidR should use
Set and get number of threads to be used in lidR functions that are parallelized with OpenMP.
Default value 0 means to utilize all CPU available.
get_lidr_threads() returns the number
of threads that will be used. This affects
lidR package but also the
by internally calling setDTthreads because several functions of
lidR rely on
data.table but it does not change R itself or other packages using OpenMP.
An integer >= 0. Default 0 means use all CPU available and leave the operating system to multi task.