1 // Copyright (c) 2017, Lawrence Livermore National Security, LLC. Produced at 2 // the Lawrence Livermore National Laboratory. LLNL-CODE-734707. All Rights 3 // reserved. See files LICENSE and NOTICE for details. 4 // 5 // This file is part of CEED, a collection of benchmarks, miniapps, software 6 // libraries and APIs for efficient high-order finite element and spectral 7 // element discretizations for exascale applications. For more information and 8 // source code availability see http://github.com/ceed. 9 // 10 // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, 11 // a collaborative effort of two U.S. Department of Energy organizations (Office 12 // of Science and the National Nuclear Security Administration) responsible for 13 // the planning and preparation of a capable exascale ecosystem, including 14 // software, applications, hardware, advanced system engineering and early 15 // testbed platforms, in support of the nation's exascale computing imperative. 16 17 #ifndef _ceed_impl_h 18 #define _ceed_impl_h 19 20 #include <ceed.h> 21 22 #define CEED_INTERN CEED_EXTERN __attribute__((visibility ("hidden"))) 23 24 #define CEED_MAX_RESOURCE_LEN 1024 25 #define CEED_ALIGN 64 26 27 struct Ceed_private { 28 int (*Error)(Ceed, const char *, int, const char *, int, const char *, va_list); 29 int (*Destroy)(Ceed); 30 int (*VecCreate)(Ceed, CeedInt, CeedVector); 31 int (*ElemRestrictionCreate)(CeedElemRestriction, CeedMemType, CeedCopyMode, 32 const CeedInt *); 33 int (*BasisCreateTensorH1)(Ceed, CeedInt, CeedInt, CeedInt, const CeedScalar *, 34 const CeedScalar *, const CeedScalar *, const CeedScalar *, CeedBasis); 35 int (*QFunctionCreate)(CeedQFunction); 36 int (*OperatorCreate)(CeedOperator); 37 void *data; 38 }; 39 40 /* In the next 3 functions, p has to be the address of a pointer type, i.e. p 41 has to be a pointer to a pointer. */ 42 CEED_INTERN int CeedMallocArray(size_t n, size_t unit, void *p); 43 CEED_INTERN int CeedCallocArray(size_t n, size_t unit, void *p); 44 CEED_INTERN int CeedReallocArray(size_t n, size_t unit, void *p); 45 CEED_INTERN int CeedFree(void *p); 46 47 #define CeedChk(ierr) do { if (ierr) return ierr; } while (0) 48 /* Note that CeedMalloc and CeedCalloc will, generally, return pointers with 49 different memory alignments: CeedMalloc returns pointers aligned at 50 CEED_ALIGN bytes, while CeedCalloc uses the alignment of calloc. */ 51 #define CeedMalloc(n, p) CeedMallocArray((n), sizeof(**(p)), p) 52 #define CeedCalloc(n, p) CeedCallocArray((n), sizeof(**(p)), p) 53 #define CeedRealloc(n, p) CeedReallocArray((n), sizeof(**(p)), p) 54 55 void CeedDebug(const char *,...); 56 57 struct CeedVector_private { 58 Ceed ceed; 59 int (*SetArray)(CeedVector, CeedMemType, CeedCopyMode, CeedScalar *); 60 int (*GetArray)(CeedVector, CeedMemType, CeedScalar **); 61 int (*GetArrayRead)(CeedVector, CeedMemType, const CeedScalar **); 62 int (*RestoreArray)(CeedVector, CeedScalar **); 63 int (*RestoreArrayRead)(CeedVector, const CeedScalar **); 64 int (*Destroy)(CeedVector); 65 CeedInt length; 66 void *data; 67 }; 68 69 struct CeedElemRestriction_private { 70 Ceed ceed; 71 int (*Apply)(CeedElemRestriction, CeedTransposeMode, CeedInt, CeedTransposeMode, 72 CeedVector, CeedVector, CeedRequest *); 73 int (*Destroy)(CeedElemRestriction); 74 CeedInt nelem; /* number of elements */ 75 CeedInt elemsize; /* number of dofs per element */ 76 CeedInt ndof; /* size of the L-vector, can be used for checking for 77 correct vector sizes */ 78 void *data; /* place for the backend to store any data */ 79 }; 80 81 struct CeedBasis_private { 82 Ceed ceed; 83 int (*Apply)(CeedBasis, CeedTransposeMode, CeedEvalMode, const CeedScalar *, 84 CeedScalar *); 85 int (*Destroy)(CeedBasis); 86 CeedInt dim; 87 CeedInt ndof; 88 CeedInt P1d; 89 CeedInt Q1d; 90 CeedScalar *qref1d; 91 CeedScalar *qweight1d; 92 CeedScalar *interp1d; 93 CeedScalar *grad1d; 94 }; 95 96 /* FIXME: The number of in-fields and out-fields may be different? */ 97 /* FIXME: Shouldn't inmode and outmode be per-in-field and per-out-field, 98 respectively? */ 99 struct CeedQFunction_private { 100 Ceed ceed; 101 int (*Apply)(CeedQFunction, void *, CeedInt, const CeedScalar *const *, 102 CeedScalar *const *); 103 int (*Destroy)(CeedQFunction); 104 CeedInt vlength; // Number of quadrature points must be padded to a multiple of vlength 105 CeedInt nfields; 106 size_t qdatasize; // Number of bytes of qdata per quadrature point 107 CeedEvalMode inmode, outmode; 108 int (*function)(void *, void *, CeedInt, const CeedScalar *const *, 109 CeedScalar *const *); 110 const char *focca; 111 void *ctx; /* user context for function */ 112 size_t ctxsize; /* size of user context; may be used to copy to a device */ 113 void *data; /* backend data */ 114 }; 115 116 struct CeedOperator_private { 117 Ceed ceed; 118 int (*Apply)(CeedOperator, CeedVector, CeedVector, CeedVector, CeedRequest *); 119 int (*ApplyJacobian)(CeedOperator, CeedVector, CeedVector, CeedVector, 120 CeedVector, CeedRequest *); 121 int (*GetQData)(CeedOperator, CeedVector *); 122 int (*Destroy)(CeedOperator); 123 CeedElemRestriction Erestrict; 124 CeedBasis basis; 125 CeedQFunction qf; 126 CeedQFunction dqf; 127 CeedQFunction dqfT; 128 void *data; 129 }; 130 131 #endif 132