slepc-3.22.1 2024-10-28
EPSKrylovSchurGetSubcommPairs
Gets the i-th eigenpair stored internally in the subcommunicator to which the calling process belongs.
Synopsis
#include "slepceps.h"
PetscErrorCode EPSKrylovSchurGetSubcommPairs(EPS eps,PetscInt i,PetscScalar *eig,Vec v)
Collective on the subcommunicator (if v is given)
Input Parameters
| eps | - the eigenproblem solver context
|
| i | - index of the solution
|
Output Parameters
| eig | - the eigenvalue
|
| v | - the eigenvector
|
Notes
It is allowed to pass NULL for v if the eigenvector is not required.
Otherwise, the caller must provide a valid Vec objects, i.e.,
it must be created by the calling program with EPSKrylovSchurGetSubcommInfo().
The index i should be a value between 0 and n-1, where n is the number of
vectors in the local subinterval, see EPSKrylovSchurGetSubcommInfo().
See Also
EPSSetInterval(), EPSKrylovSchurSetPartitions(), EPSKrylovSchurGetSubcommInfo(), EPSKrylovSchurGetSubcommMats()
Level
advanced
Location
src/eps/impls/krylov/krylovschur/krylovschur.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages