Actual source code: petscfe.h

petsc-3.13.0 2020-03-29
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  1: /*
  2:       Objects which encapsulate finite element spaces and operations
  3: */
  4: #if !defined(PETSCFE_H)
  5: #define PETSCFE_H
  6:  #include <petscdm.h>
  7:  #include <petscdt.h>
  8:  #include <petscfetypes.h>
  9:  #include <petscdstypes.h>

 11: typedef struct _n_PetscFEGeom {
 12:   const PetscReal *xi;
 13:   PetscReal *v;           /* v[Nc*Np*dE]:           The first point in each each in real coordinates */
 14:   PetscReal *J;           /* J[Nc*Np*dE*dE]:        The Jacobian of the map from reference to real coordinates (if nonsquare it is completed with orthogonal columns) */
 15:   PetscReal *invJ;        /* invJ[Nc*Np*dE*dE]:     The inverse of the Jacobian of the map from reference to real coordinates (if nonsquare it is completed with orthogonal columns) */
 16:   PetscReal *detJ;        /* detJ[Nc*Np]:           The determinant of J, and if it is non-square its the volume change */
 17:   PetscReal *n;           /* n[Nc*Np*dE]:           For faces, the normal to the face in real coordinates */
 18:   PetscInt  (*face)[2];   /* face[Nc][s]:           For faces, the local face number (cone index) for this face in each supporting cell s */
 19:   PetscReal *suppJ[2];    /* sJ[s][Nc*Np*dE*dE]:    For faces, the Jacobian for each supporting cell s */
 20:   PetscReal *suppInvJ[2]; /* sInvJ[s][Nc*Np*dE*dE]: For faces, the inverse Jacobian for each supporting cell s */
 21:   PetscReal *suppDetJ[2]; /* sInvJ[s][Nc*Np*dE*dE]: For faces, the Jacobian determinant for each supporting cell s */
 22:   PetscInt  dim;          /* Topological dimension */
 23:   PetscInt  dimEmbed;     /* Real coordinate dimension */
 24:   PetscInt  numCells;     /* Number of mesh points represented in the arrays */
 25:   PetscInt  numPoints;    /* Number of evaluation points represented in the arrays */
 26:   PetscBool isAffine;     /* Flag for affine transforms */
 27: } PetscFEGeom;

 29: PETSC_EXTERN PetscErrorCode PetscFEInitializePackage(void);

 31: PETSC_EXTERN PetscClassId PETSCSPACE_CLASSID;

 33: /*J
 34:   PetscSpaceType - String with the name of a PETSc linear space

 36:   Level: beginner

 38: .seealso: PetscSpaceSetType(), PetscSpace
 39: J*/
 40: typedef const char *PetscSpaceType;
 41: #define PETSCSPACEPOLYNOMIAL "poly"
 42: #define PETSCSPACETENSOR     "tensor"
 43: #define PETSCSPACEPOINT      "point"
 44: #define PETSCSPACESUBSPACE   "subspace"

 46: PETSC_EXTERN PetscFunctionList PetscSpaceList;
 47: PETSC_EXTERN PetscErrorCode PetscSpaceCreate(MPI_Comm, PetscSpace *);
 48: PETSC_EXTERN PetscErrorCode PetscSpaceDestroy(PetscSpace *);
 49: PETSC_EXTERN PetscErrorCode PetscSpaceSetType(PetscSpace, PetscSpaceType);
 50: PETSC_EXTERN PetscErrorCode PetscSpaceGetType(PetscSpace, PetscSpaceType *);
 51: PETSC_EXTERN PetscErrorCode PetscSpaceSetUp(PetscSpace);
 52: PETSC_EXTERN PetscErrorCode PetscSpaceSetFromOptions(PetscSpace);
 53: PETSC_EXTERN PetscErrorCode PetscSpaceViewFromOptions(PetscSpace,PetscObject,const char[]);

 55: PETSC_EXTERN PetscErrorCode PetscSpaceView(PetscSpace,PetscViewer);
 56: PETSC_EXTERN PetscErrorCode PetscSpaceRegister(const char [], PetscErrorCode (*)(PetscSpace));
 57: PETSC_EXTERN PetscErrorCode PetscSpaceRegisterDestroy(void);

 59: PETSC_EXTERN PetscErrorCode PetscSpaceGetDimension(PetscSpace, PetscInt *);
 60: PETSC_EXTERN PetscErrorCode PetscSpaceSetNumComponents(PetscSpace, PetscInt);
 61: PETSC_EXTERN PetscErrorCode PetscSpaceGetNumComponents(PetscSpace, PetscInt *);
 62: PETSC_EXTERN PetscErrorCode PetscSpaceSetNumVariables(PetscSpace, PetscInt);
 63: PETSC_EXTERN PetscErrorCode PetscSpaceGetNumVariables(PetscSpace, PetscInt *);
 64: PETSC_EXTERN PetscErrorCode PetscSpaceSetDegree(PetscSpace, PetscInt, PetscInt);
 65: PETSC_EXTERN PetscErrorCode PetscSpaceGetDegree(PetscSpace, PetscInt *, PetscInt *);
 66: PETSC_EXTERN PetscErrorCode PetscSpaceEvaluate(PetscSpace, PetscInt, const PetscReal[], PetscReal[], PetscReal[], PetscReal[]);
 67: PETSC_EXTERN PetscErrorCode PetscSpaceGetHeightSubspace(PetscSpace, PetscInt, PetscSpace *);

 69: PETSC_EXTERN PetscErrorCode PetscSpacePolynomialSetSymmetric(PetscSpace, PetscBool);
 70: PETSC_EXTERN PetscErrorCode PetscSpacePolynomialGetSymmetric(PetscSpace, PetscBool *);
 71: PETSC_EXTERN PetscErrorCode PetscSpacePolynomialSetTensor(PetscSpace, PetscBool);
 72: PETSC_EXTERN PetscErrorCode PetscSpacePolynomialGetTensor(PetscSpace, PetscBool *);

 74: PETSC_EXTERN PetscErrorCode PetscSpaceTensorSetNumSubspaces(PetscSpace, PetscInt);
 75: PETSC_EXTERN PetscErrorCode PetscSpaceTensorGetNumSubspaces(PetscSpace, PetscInt *);
 76: PETSC_EXTERN PetscErrorCode PetscSpaceTensorSetSubspace(PetscSpace, PetscInt, PetscSpace);
 77: PETSC_EXTERN PetscErrorCode PetscSpaceTensorGetSubspace(PetscSpace, PetscInt, PetscSpace *);

 79: PETSC_EXTERN PetscErrorCode PetscSpacePointGetPoints(PetscSpace, PetscQuadrature *);
 80: PETSC_EXTERN PetscErrorCode PetscSpacePointSetPoints(PetscSpace, PetscQuadrature);

 82: PETSC_EXTERN PetscErrorCode PetscSpaceCreateSubspace(PetscSpace, PetscDualSpace, PetscReal *, PetscReal *, PetscReal *, PetscReal *, PetscCopyMode, PetscSpace *);

 84: PETSC_EXTERN PetscClassId PETSCDUALSPACE_CLASSID;

 86: /*J
 87:   PetscDualSpaceType - String with the name of a PETSc dual space

 89:   Level: beginner

 91: .seealso: PetscDualSpaceSetType(), PetscDualSpace
 92: J*/
 93: typedef const char *PetscDualSpaceType;
 94: #define PETSCDUALSPACELAGRANGE "lagrange"
 95: #define PETSCDUALSPACESIMPLE   "simple"
 96: #define PETSCDUALSPACEREFINED  "refined"

 98: PETSC_EXTERN PetscFunctionList PetscDualSpaceList;
 99: PETSC_EXTERN PetscErrorCode PetscDualSpaceCreate(MPI_Comm, PetscDualSpace *);
100: PETSC_EXTERN PetscErrorCode PetscDualSpaceDestroy(PetscDualSpace *);
101: PETSC_EXTERN PetscErrorCode PetscDualSpaceDuplicate(PetscDualSpace, PetscDualSpace *);
102: PETSC_EXTERN PetscErrorCode PetscDualSpaceSetType(PetscDualSpace, PetscDualSpaceType);
103: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetType(PetscDualSpace, PetscDualSpaceType *);
104: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetUniform(PetscDualSpace, PetscBool *);
105: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetNumDof(PetscDualSpace, const PetscInt **);
106: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetSection(PetscDualSpace, PetscSection *);
107: PETSC_EXTERN PetscErrorCode PetscDualSpaceSetUp(PetscDualSpace);
108: PETSC_EXTERN PetscErrorCode PetscDualSpaceSetFromOptions(PetscDualSpace);
109: PETSC_EXTERN PetscErrorCode PetscDualSpaceViewFromOptions(PetscDualSpace,PetscObject,const char[]);

111: PETSC_EXTERN PetscErrorCode PetscDualSpaceView(PetscDualSpace,PetscViewer);
112: PETSC_EXTERN PetscErrorCode PetscDualSpaceRegister(const char [], PetscErrorCode (*)(PetscDualSpace));
113: PETSC_EXTERN PetscErrorCode PetscDualSpaceRegisterDestroy(void);

115: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetDimension(PetscDualSpace, PetscInt *);
116: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetInteriorDimension(PetscDualSpace, PetscInt *);
117: PETSC_EXTERN PetscErrorCode PetscDualSpaceSetNumComponents(PetscDualSpace, PetscInt);
118: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetNumComponents(PetscDualSpace, PetscInt *);
119: PETSC_EXTERN PetscErrorCode PetscDualSpaceSetOrder(PetscDualSpace, PetscInt);
120: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetOrder(PetscDualSpace, PetscInt *);
121: PETSC_EXTERN PetscErrorCode PetscDualSpaceSetDM(PetscDualSpace, DM);
122: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetDM(PetscDualSpace, DM *);
123: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetFunctional(PetscDualSpace, PetscInt, PetscQuadrature *);
124: PETSC_EXTERN PetscErrorCode PetscDualSpaceCreateReferenceCell(PetscDualSpace, PetscInt, PetscBool, DM *);
125: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetSymmetries(PetscDualSpace, const PetscInt ****, const PetscScalar ****);

127: PETSC_EXTERN PetscErrorCode PetscFEGeomCreate(PetscQuadrature,PetscInt,PetscInt,PetscBool,PetscFEGeom**);
128: PETSC_EXTERN PetscErrorCode PetscFEGeomGetChunk(PetscFEGeom*,PetscInt,PetscInt,PetscFEGeom**);
129: PETSC_EXTERN PetscErrorCode PetscFEGeomRestoreChunk(PetscFEGeom*,PetscInt,PetscInt,PetscFEGeom**);
130: PETSC_EXTERN PetscErrorCode PetscFEGeomComplete(PetscFEGeom*);
131: PETSC_EXTERN PetscErrorCode PetscFEGeomDestroy(PetscFEGeom**);

133: PETSC_EXTERN PetscErrorCode PetscDualSpaceApply(PetscDualSpace, PetscInt, PetscReal, PetscFEGeom *, PetscInt, PetscErrorCode (*)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void *, PetscScalar *);
134: PETSC_EXTERN PetscErrorCode PetscDualSpaceApplyDefault(PetscDualSpace, PetscInt, PetscReal, PetscFEGeom *, PetscInt, PetscErrorCode (*)(PetscInt, PetscReal, const PetscReal [], PetscInt, PetscScalar *, void *), void *, PetscScalar *);

136: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetAllData(PetscDualSpace, PetscQuadrature *, Mat *);
137: PETSC_EXTERN PetscErrorCode PetscDualSpaceCreateAllDataDefault(PetscDualSpace, PetscQuadrature *, Mat *);
138: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetInteriorData(PetscDualSpace, PetscQuadrature *, Mat *);
139: PETSC_EXTERN PetscErrorCode PetscDualSpaceCreateInteriorDataDefault(PetscDualSpace, PetscQuadrature *, Mat *);

141: PETSC_EXTERN PetscErrorCode PetscDualSpaceApplyAll(PetscDualSpace, const PetscScalar *, PetscScalar *);
142: PETSC_EXTERN PetscErrorCode PetscDualSpaceApplyAllDefault(PetscDualSpace, const PetscScalar *, PetscScalar *);
143: PETSC_EXTERN PetscErrorCode PetscDualSpaceApplyInterior(PetscDualSpace, const PetscScalar *, PetscScalar *);
144: PETSC_EXTERN PetscErrorCode PetscDualSpaceApplyInteriorDefault(PetscDualSpace, const PetscScalar *, PetscScalar *);


147: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetFormDegree(PetscDualSpace, PetscInt *);
148: PETSC_EXTERN PetscErrorCode PetscDualSpaceSetFormDegree(PetscDualSpace, PetscInt);
149: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetDeRahm(PetscDualSpace, PetscInt *);
150: PETSC_EXTERN PetscErrorCode PetscDualSpaceTransform(PetscDualSpace, PetscDualSpaceTransformType, PetscBool, PetscFEGeom *, PetscInt, PetscInt, PetscScalar[]);
151: PETSC_EXTERN PetscErrorCode PetscDualSpacePullback(PetscDualSpace, PetscFEGeom *, PetscInt, PetscInt, PetscScalar[]);
152: PETSC_EXTERN PetscErrorCode PetscDualSpacePushforward(PetscDualSpace, PetscFEGeom *, PetscInt, PetscInt, PetscScalar[]);
153: PETSC_EXTERN PetscErrorCode PetscDualSpacePushforwardGradient(PetscDualSpace, PetscFEGeom *, PetscInt, PetscInt, PetscScalar[]);

155: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeGetContinuity(PetscDualSpace, PetscBool *);
156: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeSetContinuity(PetscDualSpace, PetscBool);
157: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeGetTensor(PetscDualSpace, PetscBool *);
158: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeSetTensor(PetscDualSpace, PetscBool);
159: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeGetTrimmed(PetscDualSpace, PetscBool *);
160: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeSetTrimmed(PetscDualSpace, PetscBool);
161: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeGetNodeType(PetscDualSpace, PetscDTNodeType *, PetscBool *, PetscReal *);
162: PETSC_EXTERN PetscErrorCode PetscDualSpaceLagrangeSetNodeType(PetscDualSpace, PetscDTNodeType, PetscBool, PetscReal);

164: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetHeightSubspace(PetscDualSpace,PetscInt,PetscDualSpace *);
165: PETSC_EXTERN PetscErrorCode PetscDualSpaceGetPointSubspace(PetscDualSpace,PetscInt,PetscDualSpace *);
166: PETSC_EXTERN PetscErrorCode PetscDualSpaceSimpleSetDimension(PetscDualSpace, PetscInt);
167: PETSC_EXTERN PetscErrorCode PetscDualSpaceSimpleSetFunctional(PetscDualSpace, PetscInt, PetscQuadrature);

169: PETSC_EXTERN PetscErrorCode PetscDualSpaceRefinedSetCellSpaces(PetscDualSpace, const PetscDualSpace[]);

171: PETSC_EXTERN PetscClassId PETSCFE_CLASSID;

173: /*J
174:   PetscFEType - String with the name of a PETSc finite element space

176:   Level: beginner

178:   Note: Currently, the classes are concerned with the implementation of element integration

180: .seealso: PetscFESetType(), PetscFE
181: J*/
182: typedef const char *PetscFEType;
183: #define PETSCFEBASIC     "basic"
184: #define PETSCFEOPENCL    "opencl"
185: #define PETSCFECOMPOSITE "composite"

187: PETSC_EXTERN PetscFunctionList PetscFEList;
188: PETSC_EXTERN PetscErrorCode PetscFECreate(MPI_Comm, PetscFE *);
189: PETSC_EXTERN PetscErrorCode PetscFEDestroy(PetscFE *);
190: PETSC_EXTERN PetscErrorCode PetscFESetType(PetscFE, PetscFEType);
191: PETSC_EXTERN PetscErrorCode PetscFEGetType(PetscFE, PetscFEType *);
192: PETSC_EXTERN PetscErrorCode PetscFESetUp(PetscFE);
193: PETSC_EXTERN PetscErrorCode PetscFESetFromOptions(PetscFE);
194: PETSC_EXTERN PetscErrorCode PetscFEViewFromOptions(PetscFE,PetscObject,const char[]);
195: PETSC_EXTERN PetscErrorCode PetscFESetName(PetscFE, const char []);

197: PETSC_EXTERN PetscErrorCode PetscFEView(PetscFE,PetscViewer);
198: PETSC_EXTERN PetscErrorCode PetscFERegister(const char [], PetscErrorCode (*)(PetscFE));
199: PETSC_EXTERN PetscErrorCode PetscFERegisterDestroy(void);
200: PETSC_EXTERN PetscErrorCode PetscFECreateDefault(MPI_Comm, PetscInt, PetscInt, PetscBool, const char [], PetscInt, PetscFE *);
201: PETSC_EXTERN PetscErrorCode PetscFECreateLagrange(MPI_Comm, PetscInt, PetscInt, PetscBool, PetscInt, PetscInt, PetscFE *);

203: PETSC_EXTERN PetscErrorCode PetscFEGetDimension(PetscFE, PetscInt *);
204: PETSC_EXTERN PetscErrorCode PetscFEGetSpatialDimension(PetscFE, PetscInt *);
205: PETSC_EXTERN PetscErrorCode PetscFESetNumComponents(PetscFE, PetscInt);
206: PETSC_EXTERN PetscErrorCode PetscFEGetNumComponents(PetscFE, PetscInt *);
207: PETSC_EXTERN PetscErrorCode PetscFEGetTileSizes(PetscFE, PetscInt *, PetscInt *, PetscInt *, PetscInt *);
208: PETSC_EXTERN PetscErrorCode PetscFESetTileSizes(PetscFE, PetscInt, PetscInt, PetscInt, PetscInt);
209: PETSC_EXTERN PetscErrorCode PetscFESetBasisSpace(PetscFE, PetscSpace);
210: PETSC_EXTERN PetscErrorCode PetscFEGetBasisSpace(PetscFE, PetscSpace *);
211: PETSC_EXTERN PetscErrorCode PetscFESetDualSpace(PetscFE, PetscDualSpace);
212: PETSC_EXTERN PetscErrorCode PetscFEGetDualSpace(PetscFE, PetscDualSpace *);
213: PETSC_EXTERN PetscErrorCode PetscFESetQuadrature(PetscFE, PetscQuadrature);
214: PETSC_EXTERN PetscErrorCode PetscFEGetQuadrature(PetscFE, PetscQuadrature *);
215: PETSC_EXTERN PetscErrorCode PetscFESetFaceQuadrature(PetscFE, PetscQuadrature);
216: PETSC_EXTERN PetscErrorCode PetscFEGetFaceQuadrature(PetscFE, PetscQuadrature *);
217: PETSC_EXTERN PetscErrorCode PetscFECopyQuadrature(PetscFE, PetscFE);
218: PETSC_EXTERN PetscErrorCode PetscFEGetNumDof(PetscFE, const PetscInt **);

220: /* TODO: Need a function to reuse the memory when retabulating the same FE at different points */
221: PETSC_EXTERN PetscErrorCode PetscFEGetCellTabulation(PetscFE, PetscTabulation *);
222: PETSC_EXTERN PetscErrorCode PetscFEGetFaceTabulation(PetscFE, PetscTabulation *);
223: PETSC_EXTERN PetscErrorCode PetscFEGetFaceCentroidTabulation(PetscFE, PetscTabulation *);
224: PETSC_EXTERN PetscErrorCode PetscFECreateTabulation(PetscFE, PetscInt, PetscInt, const PetscReal[], PetscInt, PetscTabulation *);
225: PETSC_EXTERN PetscErrorCode PetscFEComputeTabulation(PetscFE, PetscInt, const PetscReal[], PetscInt, PetscTabulation);
226: PETSC_EXTERN PetscErrorCode PetscTabulationDestroy(PetscTabulation *);

228: PETSC_EXTERN PetscErrorCode PetscFERefine(PetscFE, PetscFE *);
229: PETSC_EXTERN PetscErrorCode PetscFEGetHeightSubspace(PetscFE, PetscInt, PetscFE *);

231: PETSC_EXTERN PetscErrorCode PetscFECreateCellGeometry(PetscFE, PetscQuadrature, PetscFEGeom *);
232: PETSC_EXTERN PetscErrorCode PetscFEDestroyCellGeometry(PetscFE, PetscFEGeom *);
233: PETSC_EXTERN PetscErrorCode PetscFEPushforward(PetscFE, PetscFEGeom *, PetscInt, PetscScalar[]);
234: PETSC_EXTERN PetscErrorCode PetscFEPushforwardGradient(PetscFE, PetscFEGeom *, PetscInt, PetscScalar[]);

236: PETSC_EXTERN PetscErrorCode PetscFEIntegrate(PetscDS, PetscInt, PetscInt, PetscFEGeom *, const PetscScalar[], PetscDS, const PetscScalar[], PetscScalar[]);
237: PETSC_EXTERN PetscErrorCode PetscFEIntegrateBd(PetscDS, PetscInt,
238:                                                void (*)(PetscInt, PetscInt, PetscInt,
239:                                                         const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[],
240:                                                         const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[],
241:                                                         PetscReal, const PetscReal[], const PetscReal[], PetscInt, const
242:                                                         PetscScalar[], PetscScalar[]),
243:                                                PetscInt, PetscFEGeom *, const PetscScalar[], PetscDS, const PetscScalar[], PetscScalar[]);
244: PETSC_EXTERN PetscErrorCode PetscFEIntegrateResidual(PetscDS, PetscInt, PetscInt, PetscFEGeom *, const PetscScalar[], const PetscScalar[], PetscDS, const PetscScalar[], PetscReal, PetscScalar[]);
245: PETSC_EXTERN PetscErrorCode PetscFEIntegrateBdResidual(PetscDS, PetscInt, PetscInt, PetscFEGeom *, const PetscScalar[], const PetscScalar[], PetscDS, const PetscScalar[], PetscReal, PetscScalar[]);
246: PETSC_EXTERN PetscErrorCode PetscFEIntegrateJacobian(PetscDS, PetscFEJacobianType, PetscInt, PetscInt, PetscInt, PetscFEGeom *, const PetscScalar[], const PetscScalar[], PetscDS, const PetscScalar[], PetscReal, PetscReal, PetscScalar[]);
247: PETSC_EXTERN PetscErrorCode PetscFEIntegrateBdJacobian(PetscDS, PetscInt, PetscInt, PetscInt, PetscFEGeom *, const PetscScalar[], const PetscScalar[], PetscDS, const PetscScalar[], PetscReal, PetscReal, PetscScalar[]);

249: PETSC_EXTERN PetscErrorCode PetscFECompositeGetMapping(PetscFE, PetscInt *, const PetscReal *[], const PetscReal *[], const PetscReal *[]);

251: PETSC_EXTERN PetscErrorCode PetscFECreateHeightTrace(PetscFE, PetscInt, PetscFE *);
252: PETSC_EXTERN PetscErrorCode PetscFECreatePointTrace(PetscFE, PetscInt, PetscFE *);

254: PETSC_EXTERN PetscErrorCode PetscFEOpenCLSetRealType(PetscFE, PetscDataType);
255: PETSC_EXTERN PetscErrorCode PetscFEOpenCLGetRealType(PetscFE, PetscDataType *);

257: #endif