1 /* 2 Common tools for constructing discretizations 3 */ 4 #if !defined(__PETSCDT_H) 5 #define __PETSCDT_H 6 7 #include <petscsys.h> 8 9 /*S 10 PetscQuadrature - Quadrature rule for integration. 11 12 Level: developer 13 14 .seealso: PetscQuadratureCreate(), PetscQuadratureDestroy() 15 S*/ 16 typedef struct _p_PetscQuadrature *PetscQuadrature; 17 18 /*E 19 PetscGLLCreateType - algorithm used to compute the Gauss-Lobatto-Legendre nodes and weights 20 21 Level: intermediate 22 23 $ PETSCGLL_VIA_LINEARALGEBRA - compute the nodes via linear algebra 24 $ PETSCGLL_VIA_NEWTON - compute the nodes by solving a nonlinear equation with Newton's method 25 26 E*/ 27 typedef enum {PETSCGLL_VIA_LINEARALGEBRA,PETSCGLL_VIA_NEWTON} PetscGLLCreateType; 28 29 PETSC_EXTERN PetscErrorCode PetscQuadratureCreate(MPI_Comm, PetscQuadrature *); 30 PETSC_EXTERN PetscErrorCode PetscQuadratureDuplicate(PetscQuadrature, PetscQuadrature *); 31 PETSC_EXTERN PetscErrorCode PetscQuadratureGetOrder(PetscQuadrature, PetscInt*); 32 PETSC_EXTERN PetscErrorCode PetscQuadratureSetOrder(PetscQuadrature, PetscInt); 33 PETSC_EXTERN PetscErrorCode PetscQuadratureGetNumComponents(PetscQuadrature, PetscInt*); 34 PETSC_EXTERN PetscErrorCode PetscQuadratureSetNumComponents(PetscQuadrature, PetscInt); 35 PETSC_EXTERN PetscErrorCode PetscQuadratureGetData(PetscQuadrature, PetscInt*, PetscInt*, PetscInt*, const PetscReal *[], const PetscReal *[]); 36 PETSC_EXTERN PetscErrorCode PetscQuadratureSetData(PetscQuadrature, PetscInt, PetscInt, PetscInt, const PetscReal [], const PetscReal []); 37 PETSC_EXTERN PetscErrorCode PetscQuadratureView(PetscQuadrature, PetscViewer); 38 PETSC_EXTERN PetscErrorCode PetscQuadratureDestroy(PetscQuadrature *); 39 40 PETSC_EXTERN PetscErrorCode PetscQuadratureExpandComposite(PetscQuadrature, PetscInt, const PetscReal[], const PetscReal[], PetscQuadrature *); 41 42 PETSC_EXTERN PetscErrorCode PetscDTLegendreEval(PetscInt,const PetscReal*,PetscInt,const PetscInt*,PetscReal*,PetscReal*,PetscReal*); 43 PETSC_EXTERN PetscErrorCode PetscDTGaussQuadrature(PetscInt,PetscReal,PetscReal,PetscReal*,PetscReal*); 44 PETSC_EXTERN PetscErrorCode PetscDTGaussLobattoLegendreQuadrature(PetscInt,PetscGLLCreateType,PetscReal*,PetscReal*); 45 PETSC_EXTERN PetscErrorCode PetscDTReconstructPoly(PetscInt,PetscInt,const PetscReal*,PetscInt,const PetscReal*,PetscReal*); 46 PETSC_EXTERN PetscErrorCode PetscDTGaussTensorQuadrature(PetscInt,PetscInt,PetscInt,PetscReal,PetscReal,PetscQuadrature*); 47 PETSC_EXTERN PetscErrorCode PetscDTGaussJacobiQuadrature(PetscInt,PetscInt,PetscInt,PetscReal,PetscReal,PetscQuadrature*); 48 49 PETSC_EXTERN PetscErrorCode PetscDTTanhSinhTensorQuadrature(PetscInt, PetscInt, PetscReal, PetscReal, PetscQuadrature *); 50 PETSC_EXTERN PetscErrorCode PetscDTTanhSinhIntegrate(void (*)(PetscReal, PetscReal *), PetscReal, PetscReal, PetscInt, PetscReal *); 51 PETSC_EXTERN PetscErrorCode PetscDTTanhSinhIntegrateMPFR(void (*)(PetscReal, PetscReal *), PetscReal, PetscReal, PetscInt, PetscReal *); 52 53 #endif 54