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9.3 File space requirements

A typical .x run will require an amount of temporary disk space in the order of O double precision complex numbers:

O = NkMN + qNr1Nr2Nr3

where q = 2 x mixing_ndim (number of iterations used in self-consistency, default value = 8) if disk_io is set to 'high'; q = 0 otherwise.



Paolo Giannozzi 2010-06-24