Date: 2026-03-09T09:12:00+00:00

Actual source code: linear.h

      1: /*
      2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
      4:    Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain

      6:    This file is part of SLEPc.
      7:    SLEPc is distributed under a 2-clause BSD license (see LICENSE).
      8:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      9: */
     10: /*
     11:    Private header for PEPLINEAR
     12: */

     14: #pragma once

     16: typedef struct {
     17:   PetscBool  explicitmatrix;
     18:   PEP        pep;
     19:   PetscReal  sfactor,dsfactor; /* scaling factors */
     20:   Mat        A,B;              /* matrices of generalized eigenproblem */
     21:   EPS        eps;              /* linear eigensolver for Az=lBz */
     22:   PetscBool  usereps;          /* eps provided by user */
     23:   Mat        M,C,K;            /* copy of PEP coefficient matrices */
     24:   Vec        w[6];             /* work vectors */
     25:   PetscReal  alpha,beta;       /* coefficients defining the linearization */
     26:   PetscBool  setfromoptionscalled;
     27: } PEP_LINEAR;

     29: /* General case for implicit matrices of degree d */
     30: SLEPC_INTERN PetscErrorCode MatMult_Linear(Mat,Vec,Vec);

     32: /* N */
     33: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_NA(MPI_Comm,PEP_LINEAR*,Mat*);
     34: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_NB(MPI_Comm,PEP_LINEAR*,Mat*);

     36: /* S */
     37: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_SA(MPI_Comm,PEP_LINEAR*,Mat*);
     38: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_SB(MPI_Comm,PEP_LINEAR*,Mat*);

     40: /* H */
     41: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_HA(MPI_Comm,PEP_LINEAR*,Mat*);
     42: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_HB(MPI_Comm,PEP_LINEAR*,Mat*);