pyarrow.cpu_count — Apache Arrow v20.0.0 (original) (raw)

pyarrow.cpu_count()#

Return the number of threads to use in parallel operations.

The number of threads is determined at startup by inspecting theOMP_NUM_THREADS and OMP_THREAD_LIMIT environment variables. If neither is present, it will default to the number of hardware threads on the system. It can be modified at runtime by callingset_cpu_count().