Table 1. Available Parallelizations of Various Modules Shown in Version 7.7^a.

module	functionality	Fork-SMP	OpenMP	MPI	OpenMP/MPI	GPU
dscf	HF/DFT energy	√	√	√	√	√
grad	HF/DFT gradient	√	√	√	√	√
ridft	RI-HF/RI-DFT energy	√	√	√	X	√
rdgrad	RI-HF/RI-DFT gradient	√	√	√	X	√
aoforce	HF/DFT Hessian	√	√	√	√	√
escf	HF/DFT/GW-BSE excitation energies	√	√	√	√	√
egrad	HF/DFT excited-state gradient	√	√	X	X	√
mpshift	NMR/EPR parameters (HF/DFT/MP2)	X	√	X	X	√
evib	electron transport (HF/DFT)	√	√	√	√	X
odft	orbital-dependent DFT energies	X	√	X	X	X
mpgrad	MP2 energy, gradient	√	X	√	X	X
ricc2	RI-MP2, ADC(2), CC2 energies, gradients, spectra	X	√	√	√	X
pnoccsd	PNO-MPPT and PNO–CC energies with F12	X	√	√	√	X
ccsdf12	CCSD, CCSD(T) energies with F12	X	√	X	X	X
rirpa	RPA energy, gradient	X	√	X	X	X
riper	periodic HF/DFT energy, gradient	X	√	X	X	X

^aFork-SMP⁹⁴ and the OpenMP version^{46,62,95−97} are restricted to calculations on a single node. MPI^5,98−101 and OpenMP/MPI hybrid¹⁰² implementations allow for the use of multiple nodes. The availability of first- and second-order derivatives as well as excitation energies is also indicated.