EPSEVSLSetPolParameters#

Defines the parameters used for building the building the polynomial in the EVSL solver.

Synopsis#

#include "slepceps.h" 
PetscErrorCode EPSEVSLSetPolParameters(EPS eps,PetscInt max_deg,PetscReal thresh)

Logically Collective

Input Parameters#

  • eps - the linear eigensolver context

  • max_deg - maximum degree allowed for the polynomial

  • thresh - threshold for accepting a value

Options Database Keys#

  • -eps_evsl_pol_max_deg <max_deg> - set maximum polynomial degree

  • -eps_evsl_pol_thresh <thresh> - set the threshold

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 value.

See the documentation of EVSL [Li et al., 2019] for details.

References#

[Li19]

R. Li, Y. Xi, L. Erlandson, and Y. Saad. The eigenvalues slicing library (EVSL): algorithms, implementation, and software. SIAM J. Sci. Comput., 41(4):C393–C415, 2019. doi:10.1137/18M1170935.

See Also#

EPS: Eigenvalue Problem Solver, EPSEVSL, EPSEVSLGetPolParameters()

Level#

advanced

Location#

src/eps/impls/external/evsl/evsl.c

Implementations#

EPSEVSLSetPolParameters_EVSL() in src/eps/impls/external/evsl/evsl.c

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