slepc-main 2024-11-15
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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