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 /// @file 18 /// Private header for frontend components of libCEED 19 #ifndef _ceed_impl_h 20 #define _ceed_impl_h 21 22 #include <ceed.h> 23 #include <ceed-backend.h> 24 #include <stdbool.h> 25 26 #define CEED_INTERN CEED_EXTERN __attribute__((visibility ("hidden"))) 27 28 #define CEED_MAX_RESOURCE_LEN 1024 29 #define CEED_ALIGN 64 30 31 #define CEED_NUM_BACKEND_FUNCTIONS 29 32 #define CEED_COMPOSITE_MAX 16 33 34 // Lookup table field for backend functions 35 typedef struct { 36 const char *fname; 37 size_t offset; 38 } foffset; 39 40 struct Ceed_private { 41 Ceed delegate; 42 Ceed parent; 43 int (*Error)(Ceed, const char *, int, const char *, int, const char *, 44 va_list); 45 int (*Destroy)(Ceed); 46 int (*VecCreate)(CeedInt, CeedVector); 47 int (*ElemRestrictionCreate)(CeedMemType, CeedCopyMode, 48 const CeedInt *, CeedElemRestriction); 49 int (*ElemRestrictionCreateBlocked)(CeedMemType, CeedCopyMode, 50 const CeedInt *, CeedElemRestriction); 51 int (*BasisCreateTensorH1)(CeedInt, CeedInt, CeedInt, const CeedScalar *, 52 const CeedScalar *, const CeedScalar *, 53 const CeedScalar *, CeedBasis); 54 int (*BasisCreateH1)(CeedElemTopology, CeedInt, CeedInt, CeedInt, 55 const CeedScalar *, 56 const CeedScalar *, const CeedScalar *, 57 const CeedScalar *, CeedBasis); 58 int (*TensorContractCreate)(CeedTensorContract); 59 int (*QFunctionCreate)(CeedQFunction); 60 int (*OperatorCreate)(CeedOperator); 61 int (*CompositeOperatorCreate)(CeedOperator); 62 int refcount; 63 void *data; 64 foffset foffsets[CEED_NUM_BACKEND_FUNCTIONS]; 65 }; 66 67 struct CeedVector_private { 68 Ceed ceed; 69 int (*SetArray)(CeedVector, CeedMemType, CeedCopyMode, CeedScalar *); 70 int (*SetValue)(CeedVector, CeedScalar); 71 int (*SyncArray)(CeedVector, CeedMemType); 72 int (*GetArray)(CeedVector, CeedMemType, CeedScalar **); 73 int (*GetArrayRead)(CeedVector, CeedMemType, const CeedScalar **); 74 int (*RestoreArray)(CeedVector); 75 int (*RestoreArrayRead)(CeedVector); 76 int (*Destroy)(CeedVector); 77 int refcount; 78 CeedInt length; 79 uint64_t state; 80 uint64_t numreaders; 81 void *data; 82 }; 83 84 struct CeedElemRestriction_private { 85 Ceed ceed; 86 int (*Apply)(CeedElemRestriction, CeedTransposeMode, CeedTransposeMode, 87 CeedVector, CeedVector, CeedRequest *); 88 int (*Destroy)(CeedElemRestriction); 89 int refcount; 90 CeedInt nelem; /* number of elements */ 91 CeedInt elemsize; /* number of dofs per element */ 92 CeedInt ndof; /* size of the L-vector, can be used for checking for 93 correct vector sizes */ 94 CeedInt ncomp; /* number of components */ 95 CeedInt blksize; /* number of elements in a batch */ 96 CeedInt nblk; /* number of blocks of elements */ 97 void *data; /* place for the backend to store any data */ 98 }; 99 100 struct CeedBasis_private { 101 Ceed ceed; 102 int (*Apply)(CeedBasis, CeedInt, CeedTransposeMode, CeedEvalMode, 103 CeedVector, CeedVector); 104 int (*Destroy)(CeedBasis); 105 int refcount; 106 bool tensorbasis; /* flag for tensor basis */ 107 CeedInt dim; /* topological dimension */ 108 CeedInt ncomp; /* number of field components (1 for scalar fields) */ 109 CeedInt P1d; /* number of nodes in one dimension */ 110 CeedInt Q1d; /* number of quadrature points in one dimension */ 111 CeedInt P; /* total number of nodes */ 112 CeedInt Q; /* total number of quadrature points */ 113 CeedScalar *qref1d; /* Array of length Q1d holding the locations of 114 quadrature points on the 1D reference element [-1, 1] */ 115 CeedScalar *qweight1d; /* array of length Q1d holding the quadrature weights on 116 the reference element */ 117 CeedScalar 118 *interp1d; /* row-major matrix of shape [Q1d, P1d] expressing the values of 119 nodal basis functions at quadrature points */ 120 CeedScalar 121 *grad1d; /* row-major matrix of shape [Q1d, P1d] matrix expressing derivatives of 122 nodal basis functions at quadrature points */ 123 CeedTensorContract contract; /* tensor contraction object */ 124 void *data; /* place for the backend to store any data */ 125 }; 126 127 struct CeedTensorContract_private { 128 Ceed ceed; 129 int (*Apply)(CeedTensorContract, CeedInt, CeedInt, CeedInt, CeedInt, 130 const CeedScalar *restrict, CeedTransposeMode, const CeedInt, 131 const CeedScalar *restrict, CeedScalar *restrict); 132 int (*Destroy)(CeedTensorContract); 133 int refcount; 134 void *data; 135 }; 136 137 struct CeedQFunctionField_private { 138 const char *fieldname; 139 CeedInt ncomp; 140 CeedEvalMode emode; 141 }; 142 143 struct CeedQFunction_private { 144 Ceed ceed; 145 int (*Apply)(CeedQFunction, CeedInt, CeedVector *, CeedVector *); 146 int (*Destroy)(CeedQFunction); 147 int refcount; 148 CeedInt vlength; // Number of quadrature points must be padded to a multiple of vlength 149 CeedQFunctionField *inputfields; 150 CeedQFunctionField *outputfields; 151 CeedInt numinputfields, numoutputfields; 152 CeedQFunctionUser function; 153 const char *focca; 154 bool fortranstatus; 155 void *ctx; /* user context for function */ 156 size_t ctxsize; /* size of user context; may be used to copy to a device */ 157 void *data; /* backend data */ 158 }; 159 160 /// Struct to handle the context data to use the Fortran QFunction stub 161 /// @ingroup CeedQFunction 162 typedef struct { 163 CeedScalar *innerctx; 164 size_t innerctxsize; 165 void (*f)(void *ctx, int *nq, 166 const CeedScalar *u,const CeedScalar *u1, 167 const CeedScalar *u2,const CeedScalar *u3, 168 const CeedScalar *u4,const CeedScalar *u5, 169 const CeedScalar *u6,const CeedScalar *u7, 170 const CeedScalar *u8,const CeedScalar *u9, 171 const CeedScalar *u10,const CeedScalar *u11, 172 const CeedScalar *u12,const CeedScalar *u13, 173 const CeedScalar *u14,const CeedScalar *u15, 174 CeedScalar *v,CeedScalar *v1,CeedScalar *v2, 175 CeedScalar *v3,CeedScalar *v4,CeedScalar *v5, 176 CeedScalar *v6,CeedScalar *v7,CeedScalar *v8, 177 CeedScalar *v9, CeedScalar *v10,CeedScalar *v11, 178 CeedScalar *v12,CeedScalar *v13,CeedScalar *v14, 179 CeedScalar *v15, int *err); 180 } fContext; 181 182 struct CeedOperatorField_private { 183 CeedElemRestriction Erestrict; /// Restriction from L-vector or NULL if identity 184 CeedTransposeMode lmode; /// Transpose mode for lvector ordering 185 CeedBasis basis; /// Basis or NULL for collocated fields 186 CeedVector 187 vec; /// State vector for passive fields, NULL for active fields 188 }; 189 190 struct CeedOperator_private { 191 Ceed ceed; 192 int refcount; 193 int (*Apply)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 194 int (*ApplyJacobian)(CeedOperator, CeedVector, CeedVector, CeedVector, 195 CeedVector, CeedRequest *); 196 int (*Destroy)(CeedOperator); 197 CeedOperatorField *inputfields; 198 CeedOperatorField *outputfields; 199 CeedInt numelements; /// Number of elements 200 CeedInt numqpoints; /// Number of quadrature points over all elements 201 CeedInt nfields; /// Number of fields that have been set 202 CeedQFunction qf; 203 CeedQFunction dqf; 204 CeedQFunction dqfT; 205 bool setupdone; 206 bool composite; 207 CeedOperator *suboperators; 208 CeedInt numsub; 209 void *data; 210 }; 211 212 CEED_INTERN int CeedErrorReturn(Ceed, const char *, int, const char *, int, 213 const char *, va_list); 214 CEED_INTERN int CeedErrorAbort(Ceed, const char *, int, const char *, int, 215 const char *, va_list); 216 CEED_INTERN int CeedErrorExit(Ceed, const char *, int, const char *, int, 217 const char *, va_list); 218 CEED_INTERN int CeedSetErrorHandler(Ceed ceed, 219 int (eh)(Ceed, const char *, int, 220 const char *, int, const char *, 221 va_list)); 222 223 #endif 224