EPSSetLeftInitialSpace

Specify a basis of vectors that constitute the left initial space, used by two-sided solvers to start the left subspace.

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSSetLeftInitialSpace(EPS eps,PetscInt n,Vec isl[])

Collective

Input Parameters

• eps - the eigenproblem solver context

• n - number of vectors

• isl - set of basis vectors of the left initial space

Notes

Left initial vectors are used to initiate the left search space in two-sided eigensolvers. Users should pass here an approximation of the left eigenspace, if available.

The same comments in EPSSetInitialSpace() are applicable here.

See Also

EPSSetInitialSpace(), EPSSetTwoSided()

Level

intermediate

Location

src/eps/interface/epssetup.c

Examples

src/eps/tutorials/ex41.c

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