CH LSPEC: Difference between revisions

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Description: This flag controls whether the imaginary part of the dielectric function is calculated and outputted to the {{TAG|OUTCAR}} file.  
Description: This flag controls whether the imaginary part of the dielectric function is calculated and outputted to the {{TAG|OUTCAR}} file.  
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If {{TAG|LASYNC}}=''.TRUE.'' is set in the INCAR file, VASP will try to overlap communication with calculations. This switch is only supported in VASP.4.5 and newer releases, its use is however not recommended, since  {{TAG|LASYNC}}=''.TRUE.'' has not been tested carefully.
Overlapping communication and calculations, might improve performance a little bit, but it is also possible that the performance drops significantly. Please try yourself, and send a brief report to Georg.Kresse@univie.ac.at.


{{sc|LH_SPEC|Examples|Examples that use this tag}}
{{sc|LH_SPEC|Examples|Examples that use this tag}}

Revision as of 10:38, 17 April 2018

LH_SPEC = [logical]
Default: LH_SPEC = .FALSE. 

Description: This flag controls whether the imaginary part of the dielectric function is calculated and outputted to the OUTCAR file.

Examples that use this tag

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