slepc-3.21.1 2024-04-26
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EPSKrylovSchurGetSubintervals

Returns the points that delimit the subintervals used in spectrum slicing with several partitions.

Synopsis

#include "slepceps.h" 
PetscErrorCode EPSKrylovSchurGetSubintervals(EPS eps,PetscReal **subint)
Not Collective

Input Parameter

eps  - the eigenproblem solver context

Output Parameter

subint  - array of real values specifying subintervals

Notes

If the user passed values with EPSKrylovSchurSetSubintervals(), then the same values are returned. Otherwise, the values computed internally are obtained.

This function is only available for spectrum slicing runs.

The returned array has length npart+1 (see EPSKrylovSchurGetPartitions()) and should be freed by the user.

Fortran Notes

The calling sequence from Fortran is
   EPSKrylovSchurGetSubintervals(eps,subint,ierr)
   double precision subint(npart+1) output

See Also

EPSKrylovSchurSetSubintervals(), EPSKrylovSchurGetPartitions(), EPSSetInterval()

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