slepc-3.21.0 2024-03-30
EPSEVSLSetSlices
Set the number of slices in which the interval must be subdivided.
Synopsis
#include "slepceps.h"
PetscErrorCode EPSEVSLSetSlices(EPS eps,PetscInt nslices)
Logically Collective
Input Parameters
| eps | - the eigensolver context
|
| nslices | - the number of slices
|
Options Database Key
| -eps_evsl_slices <n> | - set the number of slices to n
|
Notes
By default, one slice per MPI process is used. Depending on the number of
eigenvalues, using more slices may be beneficial, but very narrow subintervals
imply higher polynomial degree.
See Also
EPSEVSLGetSlices()
Level
intermediate
Location
src/eps/impls/external/evsl/evsl.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages