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 PetscBool viewFinalSoln; 113 problemType problemChoice; 114 forcingType forcingChoice; 115 multigridType multigridChoice; 116 PetscScalar nuSmoother; 117 PetscInt degree; 118 PetscInt qextra; 119 PetscInt numLevels; 120 PetscInt *levelDegrees; 121 PetscInt numIncrements; // Number of steps 122 PetscInt bcClampFaces[16]; 123 PetscInt bcClampCount; 124 PetscScalar bcClampMax[16][7]; 125 PetscScalar forcingVector[3]; 126 }; 127 128 // Problem specific data 129 // *INDENT-OFF* 130 typedef struct { 131 CeedInt qdatasize; 132 CeedQFunctionUser setupgeo, apply, jacob, energy, diagnostic; 133 const char *setupgeofname, *applyfname, *jacobfname, *energyfname, 134 *diagnosticfname; 135 CeedQuadMode qmode; 136 } problemData; 137 // *INDENT-ON* 138 139 // Data specific to each problem option 140 extern problemData problemOptions[3]; 141 142 // Forcing function data 143 typedef struct { 144 CeedQFunctionUser setupforcing; 145 const char *setupforcingfname; 146 } forcingData; 147 148 extern forcingData forcingOptions[3]; 149 150 // Data for PETSc Matshell 151 typedef struct UserMult_private *UserMult; 152 struct UserMult_private { 153 MPI_Comm comm; 154 DM dm; 155 Vec Xloc, Yloc; 156 CeedVector Xceed, Yceed; 157 CeedOperator op; 158 CeedQFunction qf; 159 Ceed ceed; 160 PetscScalar loadIncrement; 161 Physics phys, physSmoother; 162 }; 163 164 // Data for Jacobian setup routine 165 typedef struct FormJacobCtx_private *FormJacobCtx; 166 struct FormJacobCtx_private { 167 UserMult *jacobCtx; 168 PetscInt numLevels; 169 SNES snesCoarse; 170 Mat *jacobMat, jacobMatCoarse; 171 Vec Ucoarse; 172 }; 173 174 // Data for PETSc Prolongation/Restriction Matshell 175 typedef struct UserMultProlongRestr_private *UserMultProlongRestr; 176 struct UserMultProlongRestr_private { 177 MPI_Comm comm; 178 DM dmC, dmF; 179 Vec locVecC, locVecF, multVec; 180 CeedVector ceedVecC, ceedVecF; 181 CeedOperator opProlong, opRestrict; 182 Ceed ceed; 183 }; 184 185 // libCEED data struct for level 186 typedef struct CeedData_private *CeedData; 187 struct CeedData_private { 188 Ceed ceed; 189 CeedBasis basisx, basisu, basisCtoF, basisEnergy, basisDiagnostic; 190 CeedElemRestriction Erestrictx, Erestrictu, Erestrictqdi, 191 ErestrictGradui, ErestrictEnergy, ErestrictDiagnostic, 192 ErestrictqdDiagnostici; 193 CeedQFunction qfApply, qfJacob, qfEnergy, qfDiagnostic; 194 CeedOperator opApply, opJacob, opRestrict, opProlong, opEnergy, 195 opDiagnostic; 196 CeedVector qdata, qdataDiagnostic, gradu, xceed, yceed, truesoln; 197 }; 198 199 // ----------------------------------------------------------------------------- 200 // Process command line options 201 // ----------------------------------------------------------------------------- 202 // Process general command line options 203 PetscErrorCode ProcessCommandLineOptions(MPI_Comm comm, AppCtx appCtx); 204 205 // Process physics options 206 PetscErrorCode ProcessPhysics(MPI_Comm comm, Physics phys, Units units); 207 208 // ----------------------------------------------------------------------------- 209 // Setup DM 210 // ----------------------------------------------------------------------------- 211 PetscErrorCode CreateBCLabel(DM dm, const char name[]); 212 213 // Create FE by degree 214 PetscErrorCode PetscFECreateByDegree(DM dm, PetscInt dim, PetscInt Nc, 215 PetscBool isSimplex, const char prefix[], 216 PetscInt order, PetscFE *fem); 217 218 // Read mesh and distribute DM in parallel 219 PetscErrorCode CreateDistributedDM(MPI_Comm comm, AppCtx appCtx, DM *dm); 220 221 // Setup DM with FE space of appropriate degree 222 PetscErrorCode SetupDMByDegree(DM dm, AppCtx appCtx, PetscInt order, 223 PetscBool boundary, PetscInt ncompu); 224 225 // ----------------------------------------------------------------------------- 226 // libCEED Functions 227 // ----------------------------------------------------------------------------- 228 // Destroy libCEED objects 229 PetscErrorCode CeedDataDestroy(CeedInt level, CeedData data); 230 231 // Get libCEED restriction data from DMPlex 232 PetscErrorCode CreateRestrictionPlex(Ceed ceed, CeedInt P, CeedInt ncomp, 233 CeedElemRestriction *Erestrict, DM dm); 234 235 // Set up libCEED for a given degree 236 PetscErrorCode SetupLibceedFineLevel(DM dm, DM dmEnergy, DM dmDiagnostic, 237 Ceed ceed, AppCtx appCtx, Physics phys, 238 CeedData *data, PetscInt fineLevel, 239 PetscInt ncompu, PetscInt Ugsz, 240 PetscInt Ulocsz, CeedVector forceCeed, 241 CeedQFunction qfRestrict, 242 CeedQFunction qfProlong); 243 244 // Set up libCEED for a given degree 245 PetscErrorCode SetupLibceedLevel(DM dm, Ceed ceed, AppCtx appCtx, Physics phys, 246 CeedData *data, PetscInt level, 247 PetscInt ncompu, PetscInt Ugsz, 248 PetscInt Ulocsz, CeedVector forceCeed, 249 CeedQFunction qfRestrict, 250 CeedQFunction qfProlong); 251 252 // Setup context data for Jacobian evaluation 253 PetscErrorCode SetupJacobianCtx(MPI_Comm comm, AppCtx appCtx, DM dm, Vec V, 254 Vec Vloc, CeedData ceedData, Ceed ceed, 255 Physics phys, Physics physSmoother, 256 UserMult jacobianCtx); 257 258 // Setup context data for prolongation and restriction operators 259 PetscErrorCode SetupProlongRestrictCtx(MPI_Comm comm, DM dmC, DM dmF, Vec VF, 260 Vec VlocC, Vec VlocF, CeedData ceedDataC, 261 CeedData ceedDataF, Ceed ceed, 262 UserMultProlongRestr prolongRestrCtx); 263 264 // ----------------------------------------------------------------------------- 265 // Jacobian setup 266 // ----------------------------------------------------------------------------- 267 PetscErrorCode FormJacobian(SNES snes, Vec U, Mat J, Mat Jpre, void *ctx); 268 269 // ----------------------------------------------------------------------------- 270 // Solution output 271 // ----------------------------------------------------------------------------- 272 PetscErrorCode ViewSolution(MPI_Comm comm, Vec U, PetscInt increment, 273 PetscScalar loadIncrement); 274 275 PetscErrorCode ViewDiagnosticQuantities(MPI_Comm comm, DM dmU, 276 UserMult user, Vec U, 277 CeedElemRestriction ErestrictDiagnostic); 278 279 // ----------------------------------------------------------------------------- 280 // libCEED Operators for MatShell 281 // ----------------------------------------------------------------------------- 282 // This function uses libCEED to compute the local action of an operator 283 PetscErrorCode ApplyLocalCeedOp(Vec X, Vec Y, UserMult user); 284 285 // This function uses libCEED to compute the non-linear residual 286 PetscErrorCode FormResidual_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 287 288 // This function uses libCEED to apply the Jacobian for assembly via a SNES 289 PetscErrorCode ApplyJacobianCoarse_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 290 291 // This function uses libCEED to compute the action of the Jacobian 292 PetscErrorCode ApplyJacobian_Ceed(Mat A, Vec X, Vec Y); 293 294 // This function uses libCEED to compute the action of the prolongation operator 295 PetscErrorCode Prolong_Ceed(Mat A, Vec X, Vec Y); 296 297 // This function uses libCEED to compute the action of the restriction operator 298 PetscErrorCode Restrict_Ceed(Mat A, Vec X, Vec Y); 299 300 // This function returns the computed diagonal of the operator 301 PetscErrorCode GetDiag_Ceed(Mat A, Vec D); 302 303 // This function calculates the strain energy in the final solution 304 PetscErrorCode ComputeStrainEnergy(DM dmEnergy, UserMult user, 305 CeedOperator opEnergy, Vec X, 306 PetscReal *energy); 307 308 // ----------------------------------------------------------------------------- 309 // Boundary Functions 310 // ----------------------------------------------------------------------------- 311 // Note: If additional boundary conditions are added, an update is needed in 312 // elasticity.h for the boundaryOptions variable. 313 314 // BCMMS - boundary function 315 // Values on all points of the mesh is set based on given solution below 316 // for u[0], u[1], u[2] 317 PetscErrorCode BCMMS(PetscInt dim, PetscReal loadIncrement, 318 const PetscReal coords[], PetscInt ncompu, 319 PetscScalar *u, void *ctx); 320 321 // BCClamp - fix boundary values with affine transformation at fraction of load 322 // increment 323 PetscErrorCode BCClamp(PetscInt dim, PetscReal loadIncrement, 324 const PetscReal coords[], PetscInt ncompu, 325 PetscScalar *u, void *ctx); 326 327 #endif //setup_h 328