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_EPSILON 1E-16 27 28 // Lookup table field for backend functions 29 typedef struct { 30 const char *fname; 31 size_t offset; 32 } foffset; 33 34 // Lookup table field for object delegates 35 typedef struct { 36 char *objname; 37 Ceed delegate; 38 } objdelegate; 39 40 struct Ceed_private { 41 const char *resource; 42 Ceed delegate; 43 Ceed parent; 44 objdelegate *objdelegates; 45 int objdelegatecount; 46 Ceed opfallbackceed, opfallbackparent; 47 const char *opfallbackresource; 48 int (*Error)(Ceed, const char *, int, const char *, int, const char *, 49 va_list); 50 int (*GetPreferredMemType)(CeedMemType *); 51 int (*Destroy)(Ceed); 52 int (*VectorCreate)(CeedInt, CeedVector); 53 int (*ElemRestrictionCreate)(CeedMemType, CeedCopyMode, 54 const CeedInt *, CeedElemRestriction); 55 int (*ElemRestrictionCreateBlocked)(CeedMemType, CeedCopyMode, 56 const CeedInt *, CeedElemRestriction); 57 int (*BasisCreateTensorH1)(CeedInt, CeedInt, CeedInt, const CeedScalar *, 58 const CeedScalar *, const CeedScalar *, 59 const CeedScalar *, CeedBasis); 60 int (*BasisCreateH1)(CeedElemTopology, CeedInt, CeedInt, CeedInt, 61 const CeedScalar *, 62 const CeedScalar *, const CeedScalar *, 63 const CeedScalar *, CeedBasis); 64 int (*TensorContractCreate)(CeedBasis, CeedTensorContract); 65 int (*QFunctionCreate)(CeedQFunction); 66 int (*OperatorCreate)(CeedOperator); 67 int (*CompositeOperatorCreate)(CeedOperator); 68 int refcount; 69 void *data; 70 foffset *foffsets; 71 }; 72 73 struct CeedVector_private { 74 Ceed ceed; 75 int (*SetArray)(CeedVector, CeedMemType, CeedCopyMode, CeedScalar *); 76 int (*SetValue)(CeedVector, CeedScalar); 77 int (*SyncArray)(CeedVector, CeedMemType); 78 int (*GetArray)(CeedVector, CeedMemType, CeedScalar **); 79 int (*GetArrayRead)(CeedVector, CeedMemType, const CeedScalar **); 80 int (*RestoreArray)(CeedVector); 81 int (*RestoreArrayRead)(CeedVector); 82 int (*Destroy)(CeedVector); 83 int refcount; 84 CeedInt length; 85 uint64_t state; 86 uint64_t numreaders; 87 void *data; 88 }; 89 90 struct CeedElemRestriction_private { 91 Ceed ceed; 92 int (*Apply)(CeedElemRestriction, CeedTransposeMode, CeedTransposeMode, 93 CeedVector, CeedVector, CeedRequest *); 94 int (*ApplyBlock)(CeedElemRestriction, CeedInt, CeedTransposeMode, 95 CeedTransposeMode, CeedVector, CeedVector, CeedRequest *); 96 int (*Destroy)(CeedElemRestriction); 97 int refcount; 98 CeedInt nelem; /* number of elements */ 99 CeedInt elemsize; /* number of nodes per element */ 100 CeedInt nnodes; /* size of the L-vector, can be used for checking for 101 correct vector sizes */ 102 CeedInt ncomp; /* number of components */ 103 CeedInt blksize; /* number of elements in a batch */ 104 CeedInt nblk; /* number of blocks of elements */ 105 void *data; /* place for the backend to store any data */ 106 }; 107 108 struct CeedBasis_private { 109 Ceed ceed; 110 int (*Apply)(CeedBasis, CeedInt, CeedTransposeMode, CeedEvalMode, 111 CeedVector, CeedVector); 112 int (*Destroy)(CeedBasis); 113 int refcount; 114 bool tensorbasis; /* flag for tensor basis */ 115 CeedInt dim; /* topological dimension */ 116 CeedInt ncomp; /* number of field components (1 for scalar fields) */ 117 CeedInt P1d; /* number of nodes in one dimension */ 118 CeedInt Q1d; /* number of quadrature points in one dimension */ 119 CeedInt P; /* total number of nodes */ 120 CeedInt Q; /* total number of quadrature points */ 121 CeedScalar *qref1d; /* Array of length Q1d holding the locations of 122 quadrature points on the 1D reference element [-1, 1] */ 123 CeedScalar *qweight1d; /* array of length Q1d holding the quadrature weights on 124 the reference element */ 125 CeedScalar 126 *interp1d; /* row-major matrix of shape [Q1d, P1d] expressing the values of 127 nodal basis functions at quadrature points */ 128 CeedScalar 129 *grad1d; /* row-major matrix of shape [Q1d, P1d] matrix expressing derivatives of 130 nodal basis functions at quadrature points */ 131 CeedTensorContract contract; /* tensor contraction object */ 132 void *data; /* place for the backend to store any data */ 133 }; 134 135 struct CeedTensorContract_private { 136 Ceed ceed; 137 int (*Apply)(CeedTensorContract, CeedInt, CeedInt, CeedInt, CeedInt, 138 const CeedScalar *restrict, CeedTransposeMode, const CeedInt, 139 const CeedScalar *restrict, CeedScalar *restrict); 140 int (*Destroy)(CeedTensorContract); 141 int refcount; 142 void *data; 143 }; 144 145 struct CeedQFunctionField_private { 146 const char *fieldname; 147 CeedInt size; 148 CeedEvalMode emode; 149 }; 150 151 struct CeedQFunction_private { 152 Ceed ceed; 153 int (*Apply)(CeedQFunction, CeedInt, CeedVector *, CeedVector *); 154 int (*Destroy)(CeedQFunction); 155 int refcount; 156 CeedInt vlength; // Number of quadrature points must be padded to a multiple of vlength 157 CeedQFunctionField *inputfields; 158 CeedQFunctionField *outputfields; 159 CeedInt numinputfields, numoutputfields; 160 CeedQFunctionUser function; 161 const char *sourcepath; 162 const char *qfname; 163 bool fortranstatus; 164 bool identity; 165 void *ctx; /* user context for function */ 166 size_t ctxsize; /* size of user context; may be used to copy to a device */ 167 void *data; /* backend data */ 168 }; 169 170 /// Struct to handle the context data to use the Fortran QFunction stub 171 /// @ingroup CeedQFunction 172 typedef struct { 173 CeedScalar *innerctx; 174 size_t innerctxsize; 175 void (*f)(void *ctx, int *nq, 176 const CeedScalar *u,const CeedScalar *u1, 177 const CeedScalar *u2,const CeedScalar *u3, 178 const CeedScalar *u4,const CeedScalar *u5, 179 const CeedScalar *u6,const CeedScalar *u7, 180 const CeedScalar *u8,const CeedScalar *u9, 181 const CeedScalar *u10,const CeedScalar *u11, 182 const CeedScalar *u12,const CeedScalar *u13, 183 const CeedScalar *u14,const CeedScalar *u15, 184 CeedScalar *v,CeedScalar *v1,CeedScalar *v2, 185 CeedScalar *v3,CeedScalar *v4,CeedScalar *v5, 186 CeedScalar *v6,CeedScalar *v7,CeedScalar *v8, 187 CeedScalar *v9, CeedScalar *v10,CeedScalar *v11, 188 CeedScalar *v12,CeedScalar *v13,CeedScalar *v14, 189 CeedScalar *v15, int *err); 190 } fContext; 191 192 struct CeedOperatorField_private { 193 CeedElemRestriction Erestrict; /// Restriction from L-vector or NULL if identity 194 CeedTransposeMode lmode; /// Transpose mode for lvector ordering 195 CeedBasis basis; /// Basis or NULL for collocated fields 196 CeedVector 197 vec; /// State vector for passive fields, NULL for active fields 198 }; 199 200 struct CeedOperator_private { 201 Ceed ceed; 202 CeedOperator opfallback; 203 CeedQFunction qffallback; 204 int refcount; 205 int (*AssembleLinearQFunction)(CeedOperator, CeedVector *, 206 CeedElemRestriction *, CeedRequest *); 207 int (*AssembleLinearDiagonal)(CeedOperator, CeedVector *, CeedRequest *); 208 int (*Apply)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 209 int (*ApplyComposite)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 210 int (*ApplyAdd)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 211 int (*ApplyAddComposite)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 212 int (*ApplyJacobian)(CeedOperator, CeedVector, CeedVector, CeedVector, 213 CeedVector, CeedRequest *); 214 int (*Destroy)(CeedOperator); 215 CeedOperatorField *inputfields; 216 CeedOperatorField *outputfields; 217 CeedInt numelements; /// Number of elements 218 CeedInt numqpoints; /// Number of quadrature points over all elements 219 CeedInt nfields; /// Number of fields that have been set 220 CeedQFunction qf; 221 CeedQFunction dqf; 222 CeedQFunction dqfT; 223 bool setupdone; 224 bool composite; 225 bool hasrestriction; 226 CeedOperator *suboperators; 227 CeedInt numsub; 228 void *data; 229 }; 230 231 CEED_INTERN int CeedErrorReturn(Ceed, const char *, int, const char *, int, 232 const char *, va_list); 233 CEED_INTERN int CeedErrorAbort(Ceed, const char *, int, const char *, int, 234 const char *, va_list); 235 CEED_INTERN int CeedErrorExit(Ceed, const char *, int, const char *, int, 236 const char *, va_list); 237 CEED_INTERN int CeedSetErrorHandler(Ceed ceed, 238 int (eh)(Ceed, const char *, int, 239 const char *, int, const char *, 240 va_list)); 241 242 CEED_INTERN int CeedMatrixMultiply(Ceed ceed, CeedScalar *matA, 243 CeedScalar *matB, CeedScalar *matC, 244 CeedInt m, CeedInt n, CeedInt kk); 245 246 #endif 247