slepc-3.22.2 2024-12-02
EPSCISSSetExtraction
Sets the extraction technique used in the CISS solver.
Synopsis
#include "slepceps.h"
PetscErrorCode EPSCISSSetExtraction(EPS eps,EPSCISSExtraction extraction)
Logically Collective
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')
|
Notes
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
Level
advanced
Location
src/eps/impls/ciss/ciss.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages