slepc-3.19.2 2023-09-05
   
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