Actual source code: linear.h
 
   slepc-3.19.2 2023-09-05
   
  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: #if !defined(SLEPC_LINEAR_H)
 15: #define SLEPC_LINEAR_H
 17: typedef struct {
 18:   PetscBool  explicitmatrix;
 19:   PEP        pep;
 20:   PetscReal  sfactor,dsfactor; /* scaling factors */
 21:   Mat        A,B;              /* matrices of generalized eigenproblem */
 22:   EPS        eps;              /* linear eigensolver for Az=lBz */
 23:   PetscBool  usereps;          /* eps provided by user */
 24:   Mat        M,C,K;            /* copy of PEP coefficient matrices */
 25:   Vec        w[6];             /* work vectors */
 26:   PetscReal  alpha,beta;       /* coefficients defining the linearization */
 27:   PetscBool  setfromoptionscalled;
 28: } PEP_LINEAR;
 30: /* General case for implicit matrices of degree d */
 31: SLEPC_INTERN PetscErrorCode MatMult_Linear(Mat,Vec,Vec);
 33: /* N */
 34: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_NA(MPI_Comm,PEP_LINEAR*,Mat*);
 35: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_NB(MPI_Comm,PEP_LINEAR*,Mat*);
 37: /* S */
 38: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_SA(MPI_Comm,PEP_LINEAR*,Mat*);
 39: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_SB(MPI_Comm,PEP_LINEAR*,Mat*);
 41: /* H */
 42: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_HA(MPI_Comm,PEP_LINEAR*,Mat*);
 43: SLEPC_INTERN PetscErrorCode MatCreateExplicit_Linear_HB(MPI_Comm,PEP_LINEAR*,Mat*);
 45: #endif