/*
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SLEPc - Scalable Library for Eigenvalue Problem Computations
Copyright (c) 2002-2010, Universidad Politecnica de Valencia, Spain
This file is part of SLEPc.
SLEPc is free software: you can redistribute it and/or modify it under the
terms of version 3 of the GNU Lesser General Public License as published by
the Free Software Foundation.
SLEPc is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
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*/
#ifndef _STIMPL
#define _STIMPL
#include <slepcst.h>
extern PetscLogEvent ST_SetUp,ST_Apply,ST_ApplyB,ST_ApplyTranspose;
extern PetscFList STList;
typedef struct _STOps *STOps;
struct _STOps {
PetscErrorCode (*setup)(ST);
PetscErrorCode (*apply)(ST,Vec,Vec);
PetscErrorCode (*getbilinearform)(ST,Mat*);
PetscErrorCode (*applytrans)(ST,Vec,Vec);
PetscErrorCode (*setshift)(ST,PetscScalar);
PetscErrorCode (*setfromoptions)(ST);
PetscErrorCode (*postsolve)(ST);
PetscErrorCode (*backtr)(ST,PetscInt,PetscScalar*,PetscScalar*);
PetscErrorCode (*destroy)(ST);
PetscErrorCode (*reset)(ST);
PetscErrorCode (*view)(ST,PetscViewer);
PetscErrorCode (*checknullspace)(ST,PetscInt,const Vec[]);
};
struct _p_ST {
PETSCHEADER(struct _STOps);
/*------------------------- User parameters --------------------------*/
Mat A,B; /* Matrices which define the eigensystem */
PetscScalar sigma; /* Value of the shift */
PetscBool sigma_set; /* whether the user provided the shift or not */
PetscScalar defsigma; /* Default value of the shift */
STMatMode shift_matrix;
MatStructure str; /* whether matrices have the same pattern or not */
Mat mat;
/*------------------------- Misc data --------------------------*/
KSP ksp;
Vec w;
Vec D; /* diagonal matrix for balancing */
Vec wb; /* balancing requires an extra work vector */
void *data;
PetscInt setupcalled;
PetscInt lineariterations;
PetscInt applys;
};
extern PetscErrorCode STRegisterAll(const char*);
extern PetscErrorCode STInitializePackage(const char*);
extern PetscErrorCode STFinalizePackage(void);
extern PetscErrorCode STGetBilinearForm_Default(ST,Mat*);
extern PetscErrorCode STView_Default(ST,PetscViewer);
extern PetscErrorCode STAssociatedKSPSolve(ST,Vec,Vec);
extern PetscErrorCode STAssociatedKSPSolveTranspose(ST,Vec,Vec);
extern PetscErrorCode STCheckNullSpace_Default(ST,PetscInt,const Vec[]);
extern PetscErrorCode STMatShellCreate(ST st,Mat *mat);
#endif