[QE-users] niter_cg_restart parameter in cp.x

[Zeeshan Ahmad]

Hi all,

The explanation for ’niter_cg_restart’ parameter belonging to cp.x input in docs is:

“frequency in iterations for which the conjugate-gradient algorithm for electronic relaxation is restarted” with a  default value of 20.

Does this mean for all types of electron_dynamics like ’none’, ‘verlet’, ‘damp’ etc., conjugate gradient algorithm will be used to converge the wave function every 20 steps by default?

Thanks,
-Zeeshan

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Zeeshan Ahmad
PhD candidate, Mechanical Engineering
Carnegie Mellon University