EPSCISSSetRefinement#

Sets the values of various refinement parameters in the CISS solver.

Synopsis#

#include "slepceps.h" 
PetscErrorCode EPSCISSSetRefinement(EPS eps,PetscInt inner,PetscInt blsize)

Logically Collective

Input Parameters#

  • eps - the linear eigensolver context

  • inner - number of iterative refinement iterations (inner loop)

  • blsize - number of iterative refinement iterations (blocksize loop)

Options Database Keys#

  • -eps_ciss_refine_inner <inner> - sets number of inner iterations

  • -eps_ciss_refine_blocksize <blsize> - sets number of blocksize iterations

Notes#

PETSC_CURRENT can be used to preserve the current value of any of the arguments, and PETSC_DETERMINE to set them to a default of 0 (no refinement).

For a detailed description of the parameters see [Maeda et al., 2016].

References#

[Mae16]

Y. Maeda, T. Sakurai, and J. E. Roman. Contour integral spectrum slicing method in SLEPc. Technical Report STR-11, Universitat Politècnica de València, 2016. URL: https://slepc.upv.es/documentation.

See Also#

EPS: Eigenvalue Problem Solver, EPSCISS, EPSCISSGetRefinement(), EPSCISSSetSizes(), EPSCISSSetThreshold()

Level#

advanced

Location#

src/eps/impls/ciss/ciss.c

Implementations#

EPSCISSSetRefinement_CISS() in src/eps/impls/ciss/ciss.c

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