/usr/lib/petscdir/3.1/include/petscdmmg.h is in libpetsc3.1-dev 3.1.dfsg-11ubuntu1.
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Defines the interface functions for the DMMG object.
*/
#ifndef __PETSCDMMG_H
#define __PETSCDMMG_H
#include "petscsnes.h"
#include "petscda.h"
PETSC_EXTERN_CXX_BEGIN
/*S
DMMGArray - Fortran only. This is used in the main program when doing DMMGCreate(), DMMGSetDM() etc.
in the subroutines like FormFunction() one should use DMMG.
You can use DMMGArrayGetDMMG(DMMGArray,DMMG,ierr) to obtain the DMMG from a DMMG.
Level: intermediate
Concepts: multigrid, Newton-multigrid
.seealso: DMCompositeCreate(), DA, DMComposite, DM, DMMGCreate(), DMMGSetKSP(), DMMGSetSNES(), DMMGSetInitialGuess(),
DMMGSetNullSpace(), DMMGSetMatType()
S*/
/*S
DMMG - Data structure to easily manage multi-level non-linear solvers on grids managed by DM
Level: intermediate
Fortran Users: see also DMMGArray
Concepts: multigrid, Newton-multigrid
.seealso: DMCompositeCreate(), DA, DMComposite, DM, DMMGCreate(), DMMGSetKSP(), DMMGSetSNES(), DMMGSetInitialGuess(),
DMMGSetNullSpace(), DMMGSetMatType()
S*/
typedef struct _n_DMMG* DMMG;
struct _n_DMMG {
DM dm; /* grid information for this level */
Vec x,b,r; /* global vectors used in multigrid preconditioner for this level*/
Mat J; /* matrix on this level */
Mat B;
Mat R; /* restriction to next coarser level (not defined on level 0) */
PetscInt nlevels; /* number of levels above this one (total number of levels on level 0)*/
MPI_Comm comm;
PetscErrorCode (*solve)(DMMG*,PetscInt);
void *user;
PetscTruth galerkin; /* for A_c = R*A*R^T */
MatType mtype; /* create matrices of this type */
char *prefix;
/* KSP only */
KSP ksp;
PetscErrorCode (*rhs)(DMMG,Vec);
/* SNES only */
Vec Rscale; /* scaling to restriction before computing Jacobian */
PetscErrorCode (*computejacobian)(SNES,Vec,Mat*,Mat*,MatStructure*,void*);
PetscTruth updatejacobian; /* compute new Jacobian when DMMGComputeJacobian_Multigrid() is called */
PetscInt updatejacobianperiod; /* how often, inside a SNES, the Jacobian is recomputed */
PetscTruth getcoloringfrommat; /* call a graph coloring algorithm on the matrix to get the coloring, instead of getting it from the DM */
ISColoringType isctype;
MatFDColoring fdcoloring; /* only used with FD coloring for Jacobian */
SNES snes;
PetscErrorCode (*initialguess)(DMMG,Vec);
Vec w,work1,work2; /* global vectors */
Vec lwork1;
PetscErrorCode (*lfj)(void); /* function used when computing Jacobian via FD, usually da->lf */
/* FAS only */
NLF nlf; /* FAS smoother object */
VecScatter inject; /* inject from this level to the next coarsest */
PetscTruth monitor,monitorall;
PetscInt presmooth,postsmooth,coarsesmooth;
PetscReal rtol,abstol,rrtol; /* convergence tolerance */
};
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGCreate(MPI_Comm,PetscInt,void*,DMMG**);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGDestroy(DMMG*);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetUp(DMMG*);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetKSP(DMMG*,PetscErrorCode (*)(DMMG,Vec),PetscErrorCode (*)(DMMG,Mat,Mat));
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetSNES(DMMG*,PetscErrorCode (*)(SNES,Vec,Vec,void*),PetscErrorCode (*)(SNES,Vec,Mat*,Mat*,MatStructure*,void*));
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetFromOptions(DMMG*);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetInitialGuessLocal(DMMG*,PetscErrorCode (*)(void));
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetInitialGuess(DMMG*,PetscErrorCode (*)(DMMG,Vec));
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGInitialGuessCurrent(DMMG,Vec);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGView(DMMG*,PetscViewer);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSolve(DMMG*);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetUseMatrixFree(DMMG*);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetDM(DMMG*,DM);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetUpLevel(DMMG*,KSP,PetscInt);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetNullSpace(DMMG*,PetscTruth,PetscInt,PetscErrorCode (*)(DMMG,Vec[]));
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetMatType(DMMG*,const MatType);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetISColoringType(DMMG*,ISColoringType);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetOptionsPrefix(DMMG*,const char[]);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGFormFunction(SNES,Vec,Vec,void *);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGGetSNESLocal(DMMG*,DALocalFunction1*,DALocalFunction1*);
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetSNESLocal_Private(DMMG*,DALocalFunction1,DALocalFunction1,DALocalFunction1,DALocalFunction1);
#if defined(PETSC_HAVE_ADIC)
# define DMMGSetSNESLocal(dmmg,function,jacobian,ad_function,admf_function) \
DMMGSetSNESLocal_Private(dmmg,(DALocalFunction1)function,(DALocalFunction1)jacobian,(DALocalFunction1)(ad_function),(DALocalFunction1)(admf_function))
#else
# define DMMGSetSNESLocal(dmmg,function,jacobian,ad_function,admf_function) DMMGSetSNESLocal_Private(dmmg,(DALocalFunction1)function,(DALocalFunction1)jacobian,(DALocalFunction1)0,(DALocalFunction1)0)
#endif
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetSNESLocali_Private(DMMG*,PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,PetscScalar*,void*),PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*),PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*));
#if defined(PETSC_HAVE_ADIC)
# define DMMGSetSNESLocali(dmmg,function,ad_function,admf_function) DMMGSetSNESLocali_Private(dmmg,(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,PetscScalar*,void*))function,(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*))(ad_function),(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*))(admf_function))
#else
# define DMMGSetSNESLocali(dmmg,function,ad_function,admf_function) DMMGSetSNESLocali_Private(dmmg,(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,PetscScalar*,void*))function,0,0)
#endif
EXTERN PetscErrorCode PETSCSNES_DLLEXPORT DMMGSetSNESLocalib_Private(DMMG*,PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,PetscScalar*,void*),PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*),PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*));
#if defined(PETSC_HAVE_ADIC)
# define DMMGSetSNESLocalib(dmmg,function,ad_function,admf_function) DMMGSetSNESLocalib_Private(dmmg,(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,PetscScalar*,void*))function,(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*))(ad_function),(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,void*,void*))(admf_function))
#else
# define DMMGSetSNESLocalib(dmmg,function,ad_function,admf_function) DMMGSetSNESLocalib_Private(dmmg,(PetscErrorCode(*)(DALocalInfo*,MatStencil*,void*,PetscScalar*,void*))function,0,0)
#endif
extern PetscErrorCode DMMGSetSNESLocalFD(DMMG*,DALocalFunction1);
/*MC
DMMGGetRHS - Returns the right hand side vector from a DMMG solve on the finest grid
Synopsis:
Vec DMMGGetRHS(DMMG *dmmg)
Not Collective, but resulting vector is parallel
Input Parameters:
. dmmg - DMMG solve context
Level: intermediate
Fortran Usage:
. DMMGGetRHS(DMMG dmmg,Vec b,PetscErrorCode ierr)
.seealso: DMMGCreate(), DMMGSetSNES(), DMMGSetKSP(), DMMGSetSNESLocal(), DMMGGetRHS()
M*/
#define DMMGGetRHS(ctx) (ctx)[(ctx)[0]->nlevels-1]->b
#define DMMGGetr(ctx) (ctx)[(ctx)[0]->nlevels-1]->r
/*MC
DMMGGetx - Returns the solution vector from a DMMG solve on the finest grid
Synopsis:
Vec DMMGGetx(DMMG *dmmg)
Not Collective, but resulting vector is parallel
Input Parameters:
. dmmg - DMMG solve context
Level: intermediate
Fortran Usage:
. DMMGGetx(DMMG dmmg,Vec x,PetscErrorCode ierr)
.seealso: DMMGCreate(), DMMGSetSNES(), DMMGSetKSP(), DMMGSetSNESLocal()
M*/
#define DMMGGetx(ctx) (ctx)[(ctx)[0]->nlevels-1]->x
/*MC
DMMGGetJ - Returns the Jacobian (matrix) for the finest level
Synopsis:
Mat DMMGGetJ(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetB(), DMMGGetRHS()
M*/
#define DMMGGetJ(ctx) (ctx)[(ctx)[0]->nlevels-1]->J
/*MC
DMMGGetComm - Returns the MPI_Comm for the finest level
Synopsis:
MPI_Comm DMMGGetJ(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ()
M*/
#define DMMGGetComm(ctx) (ctx)[(ctx)[0]->nlevels-1]->comm
/*MC
DMMGGetB - Returns the matrix for the finest level used to construct the preconditioner; usually
the same as the Jacobian
Synopsis:
Mat DMMGGetJ(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ()
M*/
#define DMMGGetB(ctx) (ctx)[(ctx)[0]->nlevels-1]->B
/*MC
DMMGGetFine - Returns the DMMG associated with the finest level
Synopsis:
DMMG DMMGGetFine(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ()
M*/
#define DMMGGetFine(ctx) (ctx)[(ctx)[0]->nlevels-1]
/*MC
DMMGGetKSP - Gets the KSP object (linear solver object) for the finest level
Synopsis:
KSP DMMGGetKSP(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
Notes: If this is a linear problem (i.e. DMMGSetKSP() was used) then this is the
master linear solver. If this is a nonlinear problem (i.e. DMMGSetSNES() was used) this
returns the KSP (linear solver) that is associated with the SNES (nonlinear solver)
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ(), KSPGetSNES()
M*/
#define DMMGGetKSP(ctx) (ctx)[(ctx)[0]->nlevels-1]->ksp
/*MC
DMMGGetSNES - Gets the SNES object (nonlinear solver) for the finest level
Synopsis:
SNES DMMGGetSNES(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
Notes: If this is a linear problem (i.e. DMMGSetKSP() was used) then this returns PETSC_NULL
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ(), KSPGetKSP()
M*/
#define DMMGGetSNES(ctx) (ctx)[(ctx)[0]->nlevels-1]->snes
/*MC
DMMGGetDM - Gets the DM object on the finest level
Synopsis:
DM DMMGGetDM(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ(), KSPGetKSP()
M*/
#define DMMGGetDM(ctx) ((ctx)[(ctx)[0]->nlevels-1]->dm)
/*MC
DMMGGetDA - Gets the DA object on the finest level
Synopsis:
DA DMMGGetDA(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
Notes: Use only if the DMMG was created with a DA, not a DMComposite
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ(), KSPGetKSP(), DMMGGetDMComposite()
M*/
#define DMMGGetDA(ctx) (DA)((ctx)[(ctx)[0]->nlevels-1]->dm)
/*MC
DMMGGetDMComposite - Gets the DMComposite object on the finest level
Synopsis:
DMComposite DMMGGetDMComposite(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
Notes: Use only if the DMMG was created with a DA, not a DMComposite
.seealso: DMMGCreate(), DMMGSetUser(), DMMGGetJ(), KSPGetKSP(), DMMGGetDA()
M*/
#define DMMGGetDMComposite(ctx) (DMComposite)((ctx)[(ctx)[0]->nlevels-1]->dm)
/*MC
DMMGGetUser - Returns the user context for a particular level
Synopsis:
void* DMMGGetUser(DMMG *dmmg,PetscInt level)
Not Collective
Input Parameters:
+ dmmg - DMMG solve context
- level - the number of the level you want the context for
Level: intermediate
.seealso: DMMGCreate(), DMMGSetUser()
M*/
#define DMMGGetUser(ctx,level) ((ctx)[level]->user)
/*MC
DMMGSetUser - Sets the user context for a particular level
Synopsis:
PetscErrorCode DMMGSetUser(DMMG *dmmg,PetscInt level,void *ctx)
Not Collective
Input Parameters:
+ dmmg - DMMG solve context
. level - the number of the level you want the context for
- ctx - the context
Level: intermediate
Note: if the context is the same for each level just pass it in with
DMMGCreate() and don't call this macro
.seealso: DMMGCreate(), DMMGGetUser()
M*/
#define DMMGSetUser(ctx,level,usr) ((ctx)[level]->user = usr,0)
/*MC
DMMGGetLevels - Gets the number of levels in a DMMG object
Synopsis:
PetscInt DMMGGetLevels(DMMG *dmmg)
Not Collective
Input Parameter:
. dmmg - DMMG solve context
Level: intermediate
.seealso: DMMGCreate(), DMMGGetUser()
M*/
#define DMMGGetLevels(ctx) (ctx)[0]->nlevels
PETSC_EXTERN_CXX_END
#endif
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