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Description: NGZF sets the number of grid points in the "fine" FFT-grid along the first lattice vector.
On this "fine" FFT mesh the localized augmentation charges are represented if ultrasoft pseudopotentials (USPPs) or the PAW method are used. In case USPPs are used, the local potentials (exchange-correlation, Hartree-potential and ionic potentials) are also calculated on this "fine" FFT-mesh.
Alternatively NGZF may be set to a specific value in the INCAR file.