Gaussian software input file sets the number of cpu cores.

Does the subject want to ask "how to set the number of cpu cores in Gauss software input files"? Unable to set. According to the information of HowNet, Gauss software is a physical cpu, and the number of cpu cores cannot be set when inputting files. Gaussian program is the most widely used quantum chemistry software for semi-empirical calculation and ab initio calculation, which can study: molecular energy and structure, energy and structure of transition state, chemical bond and reaction energy, molecular orbital, dipole moment and multipole moment, atomic charge and potential, vibration frequency, infrared and Raman spectrum.