EPSKrylovSchurSetBSEType#

Sets the method to be used for BSE structured eigenproblems in the Krylov-Schur solver.

Synopsis#

#include "slepceps.h" 
PetscErrorCode EPSKrylovSchurSetBSEType(EPS eps,EPSKrylovSchurBSEType bse)

Logically Collective

Input Parameters#

  • eps - the linear eigensolver context, see EPSKrylovSchurBSEType for possible values

  • bse - the BSE method

Options Database Key#

  • -eps_krylovschur_bse_type <bse> - sets the BSE type, either shao, gruning, or projectedbse

Notes#

This function is relevant only for EPS_BSE problem types, see section on Structured Eigenvalue Problems.

A detailed description of the methods can be found in [Alvarruiz et al., 2025].

References#

[Alv25]

F. Alvarruiz, B. Mellado-Pinto, and J. E. Roman. Variants of thick-restart Lanczos for the Bethe-Salpeter eigenvalue problem. arXiv:2503.20920 : retrieved 27 May 2025, 2025. doi:10.48550/arXiv.2503.20920.

See Also#

EPS: Eigenvalue Problem Solver, Structured Eigenvalue Problems, EPS_BSE, EPSKRYLOVSCHUR, EPSKrylovSchurGetBSEType(), EPSKrylovSchurBSEType, MatCreateBSE()

Level#

advanced

Location#

src/eps/impls/krylov/krylovschur/krylovschur.c

Implementations#

EPSKrylovSchurSetBSEType_KrylovSchur() in src/eps/impls/krylov/krylovschur/krylovschur.c

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