#include "slepcqep.h" PetscErrorCode QEPSetInitialSpaceLeft(QEP qep,PetscInt n,Vec *is)Collective on QEP and Vec
qep | - the quadratic eigensolver context | |
n | - number of vectors | |
is | - set of basis vectors of the initial left space |
These vectors do not persist from one QEPSolve() call to the other, so the initial left space should be set every time.
The vectors do not need to be mutually orthonormal, since they are explicitly orthonormalized internally.
Common usage of this function is when the user can provide a rough approximation of the wanted left eigenspace. Then, convergence may be faster.
Location: src/qep/interface/qepsetup.c
Index of all QEP routines
Table of Contents for all manual pages
Index of all manual pages