NSW: Difference between revisions

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{{TAG|IBRION}} = 0:
{{TAG|IBRION}} = 0:
:{{TAG|NSW}} gives the number of steps in all ab-initio Molecular Dynamics runs, it ''has'' to be supplied therefore, otherwise VASP crashes immediately after having started.
:{{TAG|NSW}} gives the number of steps in all ab-initio Molecular Dynamics runs, it ''has'' to be supplied therefore, otherwise VASP crashes immediately after having started.
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{{TAG|IBRION}} =1,2,3,5,6:  
{{TAG|IBRION}} =1,2,3,5,6:  
:In all minimization algorithms (quasi-Newton, conjugate gradient, and damped molecular dynamics) {{TAG|NSW}} defines the maximum number of ionic steps.
:In all minimization algorithms (quasi-Newton, conjugate gradient, and damped molecular dynamics) {{TAG|NSW}} defines the maximum number of ionic steps.

Revision as of 11:29, 3 June 2019

NSW = [integer]
Default: NSW = 0 

Description: NSW sets the maximum number of ionic steps.


IBRION = 0:

NSW gives the number of steps in all ab-initio Molecular Dynamics runs, it has to be supplied therefore, otherwise VASP crashes immediately after having started.

IBRION =1,2,3,5,6:

In all minimization algorithms (quasi-Newton, conjugate gradient, and damped molecular dynamics) NSW defines the maximum number of ionic steps.

Mind: Within each ionic step at most NELM electronic-SC loops are performed unless the EDIFF convergence criterium is matched before. Exact Hellmann-Feynman forces and stresses are calculated for each ionic step.

Examples that use this tag