vfetk.h File Reference

Contains declarations for class Vfetk. More...

#include "maloc/maloc.h"
#include "mc/mc.h"
#include "apbs/vhal.h"
#include "apbs/vatom.h"
#include "apbs/vcsm.h"
#include "apbs/vpbe.h"
#include "apbs/vunit.h"
#include "apbs/vgreen.h"
#include "apbs/vcap.h"
#include "apbs/pbeparm.h"
#include "apbs/femparm.h"
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Data Structures

struct  sVfetk
 Contains public data members for Vfetk class/module. More...
struct  sVfetk_LocalVar
 Vfetk LocalVar subclass. More...

Typedefs

typedef enum eVfetk_LsolvType Vfetk_LsolvType
 Declare FEMparm_LsolvType type.
typedef enum eVfetk_MeshLoad Vfetk_MeshLoad
 Declare FEMparm_GuessType type.
typedef enum eVfetk_NsolvType Vfetk_NsolvType
 Declare FEMparm_NsolvType type.
typedef enum eVfetk_GuessType Vfetk_GuessType
 Declare FEMparm_GuessType type.
typedef enum eVfetk_PrecType Vfetk_PrecType
 Declare FEMparm_GuessType type.
typedef struct sVfetk Vfetk
 Declaration of the Vfetk class as the Vfetk structure.
typedef struct sVfetk_LocalVar Vfetk_LocalVar
 Declaration of the Vfetk_LocalVar subclass as the Vfetk_LocalVar structure.

Enumerations

enum  eVfetk_LsolvType {
  VLT_SLU = 0,
  VLT_MG = 1,
  VLT_CG = 2,
  VLT_BCG = 3
}
 

Linear solver type.

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enum  eVfetk_MeshLoad {
  VML_DIRICUBE,
  VML_NEUMCUBE,
  VML_EXTERNAL
}
 

Mesh loading operation.

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enum  eVfetk_NsolvType {
  VNT_NEW = 0,
  VNT_INC = 1,
  VNT_ARC = 2
}
 

Non-linear solver type.

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enum  eVfetk_GuessType {
  VGT_ZERO = 0,
  VGT_DIRI = 1,
  VGT_PREV = 2
}
 

Initial guess type.

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enum  eVfetk_PrecType {
  VPT_IDEN = 0,
  VPT_DIAG = 1,
  VPT_MG = 2
}
 

Preconditioner type.

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Functions

Gem * Vfetk_getGem (Vfetk *thee)
 Get a pointer to the Gem (grid manager) object.
AM * Vfetk_getAM (Vfetk *thee)
 Get a pointer to the AM (algebra manager) object.
VpbeVfetk_getVpbe (Vfetk *thee)
 Get a pointer to the Vpbe (PBE manager) object.
VcsmVfetk_getVcsm (Vfetk *thee)
 Get a pointer to the Vcsm (charge-simplex map) object.
int Vfetk_getAtomColor (Vfetk *thee, int iatom)
 Get the partition information for a particular atom.
VfetkVfetk_ctor (Vpbe *pbe, Vhal_PBEType type)
 Constructor for Vfetk object.
int Vfetk_ctor2 (Vfetk *thee, Vpbe *pbe, Vhal_PBEType type)
 FORTRAN stub constructor for Vfetk object.
void Vfetk_dtor (Vfetk **thee)
 Object destructor.
void Vfetk_dtor2 (Vfetk *thee)
 FORTRAN stub object destructor.
double * Vfetk_getSolution (Vfetk *thee, int *length)
 Create an array containing the solution (electrostatic potential in units of $k_B T/e$) at the finest mesh level.
void Vfetk_setParameters (Vfetk *thee, PBEparm *pbeparm, FEMparm *feparm)
 Set the parameter objects.
double Vfetk_energy (Vfetk *thee, int color, int nonlin)
 Return the total electrostatic energy.
double Vfetk_dqmEnergy (Vfetk *thee, int color)
 Get the "mobile charge" and "polarization" contributions to the electrostatic energy.
double Vfetk_qfEnergy (Vfetk *thee, int color)
 Get the "fixed charge" contribution to the electrostatic energy.
unsigned long int Vfetk_memChk (Vfetk *thee)
 Return the memory used by this structure (and its contents) in bytes.
void Vfetk_setAtomColors (Vfetk *thee)
 Transfer color (partition ID) information frmo a partitioned mesh to the atoms.
void Bmat_printHB (Bmat *thee, char *fname)
 Writes a Bmat to disk in Harwell-Boeing sparse matrix format.
Vrc_Codes Vfetk_genCube (Vfetk *thee, double center[3], double length[3], Vfetk_MeshLoad meshType)
 Construct a rectangular mesh (in the current Vfetk object).
Vrc_Codes Vfetk_loadMesh (Vfetk *thee, double center[3], double length[3], Vfetk_MeshLoad meshType, Vio *sock)
 Loads a mesh into the Vfetk (and associated) object(s).
PDE * Vfetk_PDE_ctor (Vfetk *fetk)
 Constructs the FEtk PDE object.
int Vfetk_PDE_ctor2 (PDE *thee, Vfetk *fetk)
 Intializes the FEtk PDE object.
void Vfetk_PDE_dtor (PDE **thee)
 Destroys FEtk PDE object.
void Vfetk_PDE_dtor2 (PDE *thee)
 FORTRAN stub: destroys FEtk PDE object.
void Vfetk_PDE_initAssemble (PDE *thee, int ip[], double rp[])
 Do once-per-assembly initialization.
void Vfetk_PDE_initElement (PDE *thee, int elementType, int chart, double tvx[][VAPBS_DIM], void *data)
 Do once-per-element initialization.
void Vfetk_PDE_initFace (PDE *thee, int faceType, int chart, double tnvec[])
 Do once-per-face initialization.
void Vfetk_PDE_initPoint (PDE *thee, int pointType, int chart, double txq[], double tU[], double tdU[][VAPBS_DIM])
 Do once-per-point initialization.
void Vfetk_PDE_Fu (PDE *thee, int key, double F[])
 Evaluate strong form of PBE. For interior points, this is:

\[ -\nabla \cdot \epsilon \nabla u + b(u) - f \]

where $b(u)$ is the (possibly nonlinear) mobile ion term and $f$ is the source charge distribution term (for PBE) or the induced surface charge distribution (for RPBE). For an interior-boundary (simplex face) point, this is:

\[ [\epsilon(x) \nabla u(x) \cdot n(x)]_{x=0^+} - [\epsilon(x) \nabla u(x) \cdot n(x)]_{x=0^-} \]

where $n(x)$ is the normal to the simplex face and the term represents the jump in dielectric displacement across the face. There is no outer-boundary contribution for this problem.

double Vfetk_PDE_Fu_v (PDE *thee, int key, double V[], double dV[][VAPBS_DIM])
 This is the weak form of the PBE; i.e. the strong form integrated with a test function to give:

\[ \int_\Omega \left[ \epsilon \nabla u \cdot \nabla v + b(u) v - f v \right] dx \]

where $b(u)$ denotes the mobile ion term.

double Vfetk_PDE_DFu_wv (PDE *thee, int key, double W[], double dW[][VAPBS_DIM], double V[], double dV[][VAPBS_DIM])
 This is the linearization of the weak form of the PBE; e.g., for use in a Newton iteration. This is the functional linearization of the strong form integrated with a test function to give:

\[ \int_\Omega \left[ \epsilon \nabla w \cdot \nabla v + b'(u) w v - f v \right] dx \]

where $b'(u)$ denotes the functional derivation of the mobile ion term.

void Vfetk_PDE_delta (PDE *thee, int type, int chart, double txq[], void *user, double F[])
 Evaluate a (discretized) delta function source term at the given point.
void Vfetk_PDE_u_D (PDE *thee, int type, int chart, double txq[], double F[])
 Evaluate the Dirichlet boundary condition at the given point.
void Vfetk_PDE_u_T (PDE *thee, int type, int chart, double txq[], double F[])
 Evaluate the "true solution" at the given point for comparison with the numerical solution.
void Vfetk_PDE_bisectEdge (int dim, int dimII, int edgeType, int chart[], double vx[][VAPBS_DIM])
 Define the way manifold edges are bisected.
void Vfetk_PDE_mapBoundary (int dim, int dimII, int vertexType, int chart, double vx[VAPBS_DIM])
 Map a boundary point to some pre-defined shape.
int Vfetk_PDE_markSimplex (int dim, int dimII, int simplexType, int faceType[VAPBS_NVS], int vertexType[VAPBS_NVS], int chart[], double vx[][VAPBS_DIM], void *simplex)
 User-defined error estimator -- in our case, a geometry-based refinement method; forcing simplex refinement at the dielectric boundary and (for non-regularized PBE) the charges.
void Vfetk_PDE_oneChart (int dim, int dimII, int objType, int chart[], double vx[][VAPBS_DIM], int dimV)
 Unify the chart for different coordinate systems -- a no-op for us.
double Vfetk_PDE_Ju (PDE *thee, int key)
 Energy functional. This returns the energy (less delta function terms) in the form:

\[ c^{-1}/2 \int (\epsilon (\nabla u)^2 + \kappa^2 (cosh u - 1)) dx \]

for a 1:1 electrolyte where $c$ is the output from Vpbe_getZmagic.

void Vfetk_externalUpdateFunction (SS **simps, int num)
 External hook to simplex subdivision routines in Gem. Called each time a simplex is subdivided (we use it to update the charge-simplex map).
int Vfetk_PDE_simplexBasisInit (int key, int dim, int comp, int *ndof, int dof[])
 Initialize the bases for the trial or the test space, for a particular component of the system, at all quadrature points on the master simplex element.
void Vfetk_PDE_simplexBasisForm (int key, int dim, int comp, int pdkey, double xq[], double basis[])
 Evaluate the bases for the trial or test space, for a particular component of the system, at all quadrature points on the master simplex element.
void Vfetk_readMesh (Vfetk *thee, int skey, Vio *sock)
 Read in mesh and initialize associated internal structures.
void Vfetk_dumpLocalVar ()
 Debugging routine to print out local variables used by PDE object.
int Vfetk_fillArray (Vfetk *thee, Bvec *vec, Vdata_Type type)
 Fill an array with the specified data.
int Vfetk_write (Vfetk *thee, const char *iodev, const char *iofmt, const char *thost, const char *fname, Bvec *vec, Vdata_Format format)
 Write out data.
Vrc_Codes Vfetk_loadGem (Vfetk *thee, Gem *gm)
 Load a Gem geometry manager object into Vfetk.

Detailed Description

Contains declarations for class Vfetk.

Version:
Id
vfetk.h 1350 2009-02-12 00:38:48Z yhuang01
Author:
Nathan A. Baker
Attention:
 *
 * APBS -- Adaptive Poisson-Boltzmann Solver
 *
 * Nathan A. Baker (baker@biochem.wustl.edu)
 * Dept. of Biochemistry and Molecular Biophysics
 * Center for Computational Biology
 * Washington University in St. Louis
 *
 * Additional contributing authors listed in the code documentation.
 *
 * Copyright (c) 2002-2009, Washington University in St. Louis.
 * Portions Copyright (c) 2002-2009.  Nathan A. Baker
 * Portions Copyright (c) 1999-2002.  The Regents of the University of California.
 * Portions Copyright (c) 1995.  Michael Holst
 *
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met: 
 *
 * -  Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.  
 * 
 * - Redistributions in binary form must reproduce the above copyright notice,
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 * and/or other materials provided with the distribution.
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 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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