ESF CONV: Difference between revisions

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


Description: {{TAG|ESF_CONV}} sets the convergence criterion for the tricubic spline interpolation in [[ACFDT/RPA calculations]].
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 the 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_NITER}}.
 
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_NITER}} iterations vasp will print an insufficient convergence warning to screen.
{{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 ==
{{TAG|ESF_SPLINES}},  
{{TAG|ESF_SPLINES}},  
{{TAG|ESF_NITER}},
{{TAG|ESF_NINTER}},
{{TAG|LOPTICS}}
{{TAG|LOPTICS}}


{{sc|ESF_SPLINES|Examples|Examples that use this tag}}
{{sc|ESF_SPLINES|Examples|Examples that use this tag}}
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[[Category:INCAR tag]][[Category:Many-body perturbation theory]][[Category:GW]][[Category:ACFDT]][[Category:Low-scaling GW and RPA]]
<!---[[Category:INCAR tag]][[Category:Many-body perturbation theory]][[Category:GW]][[Category:ACFDT]][[Category:Low-scaling GW and RPA]]

Latest revision as of 14:08, 18 December 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