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--- CGAdditionalTerms
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CGAdditionalTerms
CGAdditionalTerms
Section SCF::Eigensolver
Type logical
Default no
Used by the cg solver only.
Add additional terms during the line minimization, see PTA92, eq. 5.31ff.
These terms can improve convergence for some systems, but they are quite costly.
If you experience convergence problems, you might try out this option.
This feature is still experimental.
Source information
electrons/eigensolver.F90 : 225
call parse_variable ( namespace , 'CGAdditionalTerms' , . false ., eigens % additional_terms )