ESF CONV: Difference between revisions

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{{TAGDEF|ESF_CONV|[real]|0.01}}
{{TAGDEF|ESF_CONV|[real]|0.01}}


Description: Sets the convergence criterion for {{TAG|ESF_SPLINES}}, i.e., check if the energy difference between two interpolations is < {{TAG|ESF_CONV}} (in eV).
Description: Sets the convergence criterion for {{TAG|ESF_SPLINES}}, i.e., the threshold for the energy difference between two interpolations (in eV).
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{{TAG|ESF_CONV}} sets convergence criterion in the tricubic spline interpolation of the RPA correlation energy. This tag is used in conjunction with {{TAG|ESF_SPLINES}} and {{TAG|ESF_NINTER}}.
If {{TAG|ESF_SPLINES}}=T is set, the RPA correlation energy is interpolated to finer k-point meshes using a tricubic spline interpolation.{{cite|gelbenegger:thesis2018}}


If the energy between two interpolated k-point grids is less than {{TAG|ESF_CONV}} the calculation is considered to be converged. If the threshold has not been reached within {{TAG|ESF_NINTER}} iterations VASP will print a warning about insufficient convergence.  
If the energy between two interpolated k-point grids is less than {{TAG|ESF_CONV}} the calculation is considered to be converged. If the threshold has not been reached within {{TAG|ESF_NINTER}} iterations VASP will print a warning about insufficient convergence.  
{{NB|tip|This method works for metals and insulators.}}
{{NB|warning|Remove {{FILE|WAVEDER}} before running the job and avoid setting {{TAG|LOPTICS}}.}}


== Related tags and articles ==
== Related tags and articles ==

Revision as of 07:33, 12 June 2024

ESF_CONV = [real]
Default: ESF_CONV = 0.01 

Description: Sets the convergence criterion for ESF_SPLINES, i.e., the threshold for the energy difference between two interpolations (in eV).


If the energy between two interpolated k-point grids is less than ESF_CONV the calculation is considered to be converged. If the threshold has not been reached within ESF_NINTER iterations VASP will print a warning about insufficient convergence.

Related tags and articles

ESF_SPLINES, ESF_NINTER, LOPTICS

Examples that use this tag

References