KPOINTS OPT: Difference between revisions

From VASP Wiki
No edit summary
No edit summary
Line 6: Line 6:
{{NB|mind| Available as of VASP 6.3.0.}}
{{NB|mind| Available as of VASP 6.3.0.}}
== Related tags and sections ==
== Related tags and sections ==
{{FILE|KPOINTS}}, {{TAG|KSPACING}}, {{FILE|PROCAR_OPT}}
{{FILE|KPOINTS}}, {{TAG|KSPACING}}, {{FILE|PROCAR_OPT}}, {{TAG|KPOINTS_OPT_NKBATCH}}
 
----
[[The_VASP_Manual|Contents]]


[[Category:VASP]][[Category:Files]][[Category:Input files]][[Category:Band structure]]
[[Category:VASP]][[Category:Files]][[Category:Input files]][[Category:Band structure]]

Revision as of 14:26, 11 May 2022

KPOINTS_OPT is an optional input file to perform an additional one-shot calculation after self-consistency is reached. The format is the same as for the KPOINTS file. VASP first performs a self-consistent calculation using the k points specified in the KPOINTS file and then performs an additional one-shot calculation to obtain the Kohn–Sham orbitals and eigenenergies at the k points specified in the KPOINTS_OPT file.

Important: The KPOINTS file must contain a uniform k mesh, when the KPOINTS_OPT file should be used afterward.

KPOINTS_OPT is read automatically when present. To avoid this, set LKPOINTS_OPT=.FALSE. in the INCAR file. VASP writes the PROCAR_OPT file and corresponding fields in the vaspout.h5 file indicated by the keyword kpoints_opt.

Mind: Available as of VASP 6.3.0.

Related tags and sections

KPOINTS, KSPACING, PROCAR_OPT, KPOINTS_OPT_NKBATCH