Date: 2016-03-29T14:59:06+00:00

Actual source code: pjdp.h
slepc-3.6.3 2016-03-29
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      1: /*
      2:    Private header for PEPJD.

      4:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      5:    SLEPc - Scalable Library for Eigenvalue Problem Computations
      6:    Copyright (c) 2002-2015, Universitat Politecnica de Valencia, Spain

      8:    This file is part of SLEPc.

     10:    SLEPc is free software: you can redistribute it and/or modify it under  the
     11:    terms of version 3 of the GNU Lesser General Public License as published by
     12:    the Free Software Foundation.

     14:    SLEPc  is  distributed in the hope that it will be useful, but WITHOUT  ANY
     15:    WARRANTY;  without even the implied warranty of MERCHANTABILITY or  FITNESS
     16:    FOR  A  PARTICULAR PURPOSE. See the GNU Lesser General Public  License  for
     17:    more details.

     19:    You  should have received a copy of the GNU Lesser General  Public  License
     20:    along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
     21:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
     22: */

     27: typedef struct {
     28:   PetscReal   keep;          /* restart parameter */
     29:   PetscReal   mtol;          /* tolerance for eigenvalue multiplicity */
     30:   PetscReal   htol;          /* tolerance for harmonic JD */
     31:   PetscReal   stol;          /* tolerance for harmonic shift */
     32:   PetscInt    fnini;         /* first initial search space */
     33:   PetscBool   randini;       /* use random initial search space */
     34:   PetscBool   custpc;        /* use custom correction equation preconditioner */
     35:   PetscBool   flglk;         /* whether in locking step */
     36:   PetscBool   flgre;         /* whether in restarting step */
     37:   BV          *W;            /* work basis vectors to store A_i*V */
     38:   PC          pcshell;       /* preconditioner including basic precond+projector */
     39: } PEP_JD;

     41: typedef struct {
     42:   PC          pc;            /* basic preconditioner */
     43:   Vec         Bp;            /* preconditioned residual of derivative polynomial, B\p */
     44:   Vec         u;             /* Ritz vector */
     45:   PetscScalar gamma;         /* precomputed scalar u'*B\p */
     46: } PEP_JD_PCSHELL;

     48: PETSC_INTERN PetscErrorCode PEPView_JD(PEP,PetscViewer);
     49: PETSC_INTERN PetscErrorCode PEPSetFromOptions_JD(PetscOptions*,PEP);
     50: PETSC_INTERN PetscErrorCode PEPJDSetRestart_JD(PEP,PetscReal);
     51: PETSC_INTERN PetscErrorCode PEPJDGetRestart_JD(PEP,PetscReal*);
     52: PETSC_INTERN PetscErrorCode PEPJDSetTolerances_JD(PEP,PetscReal,PetscReal,PetscReal);
     53: PETSC_INTERN PetscErrorCode PEPJDGetTolerances_JD(PEP,PetscReal*,PetscReal*,PetscReal*);

     55: #endif