slepc-main 2024-12-17
EPSKrylovSchurGetSubcommInfo
Gets information related to the case of doing spectrum slicing for a computational interval with multiple communicators.
Synopsis
#include "slepceps.h"
PetscErrorCode EPSKrylovSchurGetSubcommInfo(EPS eps,PetscInt *k,PetscInt *n,Vec *v)
Collective on the subcommunicator (if v is given)
Input Parameter
| eps | - the eigenproblem solver context
|
Output Parameters
| k | - index of the subinterval for the calling process
|
| n | - number of eigenvalues found in the k-th subinterval
|
| v | - a vector owned by processes in the subcommunicator with dimensions
compatible for locally computed eigenvectors (or NULL)
|
Notes
This function is only available for spectrum slicing runs.
The returned Vec should be destroyed by the user.
See Also
EPSSetInterval(), EPSKrylovSchurSetPartitions(), EPSKrylovSchurGetSubcommPairs()
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