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Cours 8 Parallelisation

https://rdrr.io/cran/lidR/man/lidR-parallelism.html Laz sur ordi petits car compréssés, mais dans R plusieurs giga.

library(future)
# chunk-based parallelism
plan(multisession, workers = 2L) # chunks numbers
set_lidr_threads(2L) # Nested parallelism (threads numbers)
# chunks nbrs * threads numbers need to be <= cores
ctg <- readLAScatalog("folder/")