QEPSetLeftVectorsWanted

Specifies which eigenvectors are required.

Synopsis

#include "slepcqep.h" 
PetscErrorCode QEPSetLeftVectorsWanted(QEP qep,PetscTruth leftvecs)
Collective on QEP

Input Parameters

qep - the quadratic eigensolver context
leftvecs - whether left eigenvectors are required or not

Options Database Keys

-qep_left_vectors <boolean> - Sets/resets the boolean flag 'leftvecs'

Notes

If the user sets leftvecs=PETSC_TRUE then the solver uses a variant of the algorithm that computes both right and left eigenvectors. This is usually much more costly. This option is not available in all solvers.

See Also

QEPGetLeftVectorsWanted(), QEPGetEigenvectorLeft()

Location: src/qep/interface/qepopts.c
Index of all QEP routines
Table of Contents for all manual pages
Index of all manual pages