# MRCC_OMP_NUM_THREADS¶

Sets the OMP_NUM_THREADS environment variable before calling MRCC. If the environment variable OMP_NUM_THREADS is set prior to calling Psi4 then that value is used. When set, this option overrides everything. Be aware the -n command-line option described in section Threading does not affect MRCC.

• Type: integer

• Default: 1