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faq.openmp

OPTIONs for # threads

OMP_NUM_THREADS

export OMP_NUM_THREADS=n

OPTIONs in a parameter file

OPTION num_threads_pcg n

  Default: n=4
  Usually, n=4-6 is the best
  A large number creates too many I/O accesses in HDD (SSD) and slows down the PCG iterations 

OPTION num_threads_pregs n

  Default: the maximum number of threads available in your system
faq.openmp.txt · Last modified: 2024/03/25 18:22 by 127.0.0.1

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