slepc-3.17.2 2022-08-09
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Sets the extraction technique used in the CISS solver.


#include "slepceps.h" 
PetscErrorCode EPSCISSSetExtraction(EPS eps,EPSCISSExtraction extraction)
Logically Collective on eps

Input Parameters

eps  - the eigenproblem solver context
extraction  - the extraction technique

Options Database Key

-eps_ciss_extraction  - Sets the extraction technique (either 'ritz' or 'hankel')


By default, the Rayleigh-Ritz extraction is used (EPS_CISS_EXTRACTION_RITZ).

If the 'hankel' option is specified (EPS_CISS_EXTRACTION_HANKEL), then the Block Hankel method is used for extracting eigenpairs.

See Also

EPSCISSGetExtraction(), EPSCISSExtraction

Location: src/eps/impls/ciss/ciss.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages