#include "slepceps.h" PetscErrorCode EPSSetInitialSpace(EPS eps,PetscInt n,Vec *is)Collective on EPS and Vec
eps | - the eigenproblem solver context | |
n | - number of vectors | |
is | - set of basis vectors of the initial space |
These vectors do not persist from one EPSSolve() call to the other, so the initial 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 eigenspace. Then, convergence may be faster.
Location: src/eps/interface/epssetup.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages