A Gaussian-basis-set AFQMC code developed by co-PI Zhang's group. It
does total energy calculations in molecules using either phaseless or free-projection AFQMC
approaches, interfacing with NWChem or GAMESS, and recently with the PYSCF code developed
in co-PI Chan's group. Parallelized with MPI-OpenMP hybrid. This code can also be used
for calculations in solids via the downfolding approach currently under development.