Scaling of VASP calculations
Posted: Wed Jan 20, 2016 11:28 am
I'm currently trying to evaluate the computer time needed for a ionic relaxation calculation with about 100 atoms.
I have done some smaller systems and am trying to estimate how the computer time will grow with increasing system size.
Is it correct to assume that (per iteration) the CPU time roughly scales linearly as
CPU ~ (Number of atoms) * (NBANDS)*(number of k-points)
?
Thanks for any help.
I have done some smaller systems and am trying to estimate how the computer time will grow with increasing system size.
Is it correct to assume that (per iteration) the CPU time roughly scales linearly as
CPU ~ (Number of atoms) * (NBANDS)*(number of k-points)
?
Thanks for any help.