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