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 setup_h 18 #define setup_h 19 20 #include <stdbool.h> 21 #include <string.h> 22 23 #include <petsc.h> 24 #include <petscdmplex.h> 25 #include <petscksp.h> 26 #include <petscfe.h> 27 28 #include <ceed.h> 29 30 #ifndef PHYSICS_STRUCT 31 #define PHYSICS_STRUCT 32 typedef struct Physics_private *Physics; 33 struct Physics_private { 34 CeedScalar nu; // Poisson's ratio 35 CeedScalar E; // Young's Modulus 36 }; 37 #endif 38 39 // ----------------------------------------------------------------------------- 40 // Command Line Options 41 // ----------------------------------------------------------------------------- 42 // Problem options 43 typedef enum { 44 ELAS_LIN = 0, ELAS_HYPER_SS = 1, ELAS_HYPER_FS = 2 45 } problemType; 46 static const char *const problemTypes[] = {"linElas", 47 "hyperSS", 48 "hyperFS", 49 "problemType","ELAS_",0 50 }; 51 static const char *const problemTypesForDisp[] = {"Linear elasticity", 52 "Hyper elasticity small strain", 53 "Hyper elasticity finite strain" 54 }; 55 56 // Forcing function options 57 typedef enum { 58 FORCE_NONE = 0, FORCE_CONST = 1, FORCE_MMS = 2 59 } forcingType; 60 static const char *const forcingTypes[] = {"none", 61 "constant", 62 "mms", 63 "forcingType","FORCE_",0 64 }; 65 static const char *const forcingTypesForDisp[] = {"None", 66 "Constant", 67 "Manufactured solution" 68 }; 69 70 // Multigrid options 71 typedef enum { 72 MULTIGRID_LOGARITHMIC = 0, MULTIGRID_UNIFORM = 1, MULTIGRID_NONE = 2 73 } multigridType; 74 static const char *const multigridTypes [] = {"logarithmic", 75 "uniform", 76 "none", 77 "multigridType","MULTIGRID",0 78 }; 79 static const char *const multigridTypesForDisp[] = {"P-multigrid, logarithmic coarsening", 80 "P-multigrind, uniform coarsening", 81 "No multigrid" 82 }; 83 84 typedef PetscErrorCode BCFunc(PetscInt, PetscReal, const PetscReal *, PetscInt, 85 PetscScalar *, void *); 86 // Note: These variables should be updated if additional boundary conditions 87 // are added to boundary.c. 88 BCFunc BCMMS, BCZero, BCClamp; 89 90 // ----------------------------------------------------------------------------- 91 // Structs 92 // ----------------------------------------------------------------------------- 93 // Units 94 typedef struct Units_private *Units; 95 struct Units_private { 96 // Fundamental units 97 PetscScalar meter; 98 PetscScalar kilogram; 99 PetscScalar second; 100 // Derived unit 101 PetscScalar Pascal; 102 }; 103 104 // Application context from user command line options 105 typedef struct AppCtx_private *AppCtx; 106 struct AppCtx_private { 107 char ceedResource[PETSC_MAX_PATH_LEN]; // libCEED backend 108 char ceedResourceFine[PETSC_MAX_PATH_LEN]; // libCEED for fine grid 109 char meshFile[PETSC_MAX_PATH_LEN]; // exodusII mesh file 110 PetscBool testMode; 111 PetscBool viewSoln; 112 problemType problemChoice; 113 forcingType forcingChoice; 114 multigridType multigridChoice; 115 PetscInt degree; 116 PetscInt numLevels; 117 PetscInt *levelDegrees; 118 PetscInt numIncrements; // Number of steps 119 PetscInt bcZeroFaces[16], bcClampFaces[16]; 120 PetscInt bcZeroCount, bcClampCount; 121 PetscScalar bcClampMax; 122 }; 123 124 // Problem specific data 125 typedef struct { 126 CeedInt qdatasize; 127 CeedQFunctionUser setupgeo, apply, jacob; 128 const char *setupgeofname, *applyfname, *jacobfname; 129 CeedQuadMode qmode; 130 } problemData; 131 132 // Data specific to each problem option 133 problemData problemOptions[3]; 134 135 // Forcing function data 136 typedef struct { 137 CeedQFunctionUser setupforcing; 138 const char *setupforcingfname; 139 } forcingData; 140 141 forcingData forcingOptions[3]; 142 143 // Data for PETSc Matshell 144 typedef struct UserMult_private *UserMult; 145 struct UserMult_private { 146 MPI_Comm comm; 147 DM dm; 148 Vec Xloc, Yloc; 149 CeedVector Xceed, Yceed; 150 CeedOperator op; 151 Ceed ceed; 152 PetscScalar loadIncrement; 153 }; 154 155 // Data for Jacobian setup routine 156 typedef struct FormJacobCtx_private *FormJacobCtx; 157 struct FormJacobCtx_private { 158 UserMult *jacobCtx; 159 PetscInt numLevels; 160 SNES snesCoarse; 161 Mat *jacobMat, jacobMatCoarse; 162 Vec Ucoarse; 163 }; 164 165 // Data for PETSc Prolongation/Restriction Matshell 166 typedef struct UserMultProlongRestr_private *UserMultProlongRestr; 167 struct UserMultProlongRestr_private { 168 MPI_Comm comm; 169 DM dmC, dmF; 170 Vec locVecC, locVecF, multVec; 171 CeedVector ceedVecC, ceedVecF; 172 CeedOperator opProlong, opRestrict; 173 Ceed ceed; 174 }; 175 176 // libCEED data struct for level 177 typedef struct CeedData_private *CeedData; 178 struct CeedData_private { 179 Ceed ceed; 180 CeedBasis basisx, basisu, basisCtoF; 181 CeedElemRestriction Erestrictx, Erestrictu, Erestrictqdi, ErestrictGradui; 182 CeedQFunction qfApply, qfJacob; 183 CeedOperator opApply, opJacob, opRestrict, opProlong; 184 CeedVector qdata, gradu, xceed, yceed, truesoln; 185 }; 186 187 // ----------------------------------------------------------------------------- 188 // Process command line options 189 // ----------------------------------------------------------------------------- 190 // Process general command line options 191 PetscErrorCode ProcessCommandLineOptions(MPI_Comm comm, AppCtx appCtx); 192 193 // Process physics options 194 PetscErrorCode ProcessPhysics(MPI_Comm comm, Physics phys, Units units); 195 196 // ----------------------------------------------------------------------------- 197 // Setup DM 198 // ----------------------------------------------------------------------------- 199 PetscErrorCode CreateBCLabel(DM dm, const char name[]); 200 201 // Create FE by degree 202 PetscErrorCode PetscFECreateByDegree(DM dm, PetscInt dim, PetscInt Nc, 203 PetscBool isSimplex, const char prefix[], 204 PetscInt order, PetscFE *fem); 205 206 // Read mesh and distribute DM in parallel 207 PetscErrorCode CreateDistributedDM(MPI_Comm comm, AppCtx appCtx, DM *dm); 208 209 // Setup DM with FE space of appropriate degree 210 PetscErrorCode SetupDMByDegree(DM dm, AppCtx appCtx, PetscInt order, 211 PetscInt ncompu); 212 213 // ----------------------------------------------------------------------------- 214 // libCEED Functions 215 // ----------------------------------------------------------------------------- 216 // Destroy libCEED objects 217 PetscErrorCode CeedDataDestroy(CeedInt level, CeedData data); 218 219 // Get libCEED restriction data from DMPlex 220 PetscErrorCode CreateRestrictionPlex(Ceed ceed, CeedInterlaceMode imode, 221 CeedInt P, CeedInt ncomp, 222 CeedElemRestriction *Erestrict, DM dm); 223 224 // Set up libCEED for a given degree 225 PetscErrorCode SetupLibceedFineLevel(DM dm, Ceed ceed, AppCtx appCtx, 226 Physics phys, CeedData *data, 227 PetscInt fineLevel, PetscInt ncompu, 228 PetscInt Ugsz, PetscInt Ulocsz, 229 CeedVector forceCeed, 230 CeedQFunction qfRestrict, 231 CeedQFunction qfProlong); 232 233 // Set up libCEED for a given degree 234 PetscErrorCode SetupLibceedLevel(DM dm, Ceed ceed, AppCtx appCtx, Physics phys, 235 CeedData *data, PetscInt level, 236 PetscInt ncompu, PetscInt Ugsz, 237 PetscInt Ulocsz, CeedVector forceCeed, 238 CeedQFunction qfRestrict, 239 CeedQFunction qfProlong); 240 241 // Setup context data for Jacobian evaluation 242 PetscErrorCode SetupJacobianCtx(MPI_Comm comm, AppCtx appCtx, DM dm, Vec V, 243 Vec Vloc, CeedData ceedData, Ceed ceed, 244 UserMult jacobianCtx); 245 246 // Setup context data for prolongation and restriction operators 247 PetscErrorCode SetupProlongRestrictCtx(MPI_Comm comm, DM dmC, DM dmF, Vec VF, 248 Vec VlocC, Vec VlocF, CeedData ceedDataC, 249 CeedData ceedDataF, Ceed ceed, 250 UserMultProlongRestr prolongRestrCtx); 251 252 // ----------------------------------------------------------------------------- 253 // Jacobian setup 254 // ----------------------------------------------------------------------------- 255 PetscErrorCode FormJacobian(SNES snes, Vec U, Mat J, Mat Jpre, void *ctx); 256 257 // ----------------------------------------------------------------------------- 258 // SNES Monitor 259 // ----------------------------------------------------------------------------- 260 PetscErrorCode ViewSolution(MPI_Comm comm, Vec U, PetscInt increment, 261 PetscScalar loadIncrement); 262 263 // ----------------------------------------------------------------------------- 264 // libCEED Operators for MatShell 265 // ----------------------------------------------------------------------------- 266 // This function uses libCEED to compute the local action of an operator 267 PetscErrorCode ApplyLocalCeedOp(Vec X, Vec Y, UserMult user); 268 269 // This function uses libCEED to compute the non-linear residual 270 PetscErrorCode FormResidual_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 271 272 // This function uses libCEED to apply the Jacobian for assembly via a SNES 273 PetscErrorCode ApplyJacobianCoarse_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 274 275 // This function uses libCEED to compute the action of the Jacobian 276 PetscErrorCode ApplyJacobian_Ceed(Mat A, Vec X, Vec Y); 277 278 // This function uses libCEED to compute the action of the prolongation operator 279 PetscErrorCode Prolong_Ceed(Mat A, Vec X, Vec Y); 280 281 // This function uses libCEED to compute the action of the restriction operator 282 PetscErrorCode Restrict_Ceed(Mat A, Vec X, Vec Y); 283 // This function returns the computed diagonal of the operator 284 PetscErrorCode GetDiag_Ceed(Mat A, Vec D); 285 286 // ----------------------------------------------------------------------------- 287 // Boundary Functions 288 // ----------------------------------------------------------------------------- 289 // Note: If additional boundary conditions are added, an update is needed in 290 // elasticity.h for the boundaryOptions variable. 291 292 // BCMMS - boundary function 293 // Values on all points of the mesh is set based on given solution below 294 // for u[0], u[1], u[2] 295 PetscErrorCode BCMMS(PetscInt dim, PetscReal loadIncrement, 296 const PetscReal coords[], PetscInt ncompu, 297 PetscScalar *u, void *ctx); 298 299 // BCZero - fix boundary values at zero 300 PetscErrorCode BCZero(PetscInt dim, PetscReal loadIncrement, 301 const PetscReal coords[], PetscInt ncompu, 302 PetscScalar *u, void *ctx); 303 304 // BCClamp - fix boundary values at fraction of load increment 305 PetscErrorCode BCBend1_ss(PetscInt dim, PetscReal loadIncrement, 306 const PetscReal coords[], PetscInt ncompu, 307 PetscScalar *u, void *ctx); 308 309 #endif //setup_h 310