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 #if PETSC_VERSION_LT(3,14,0) 31 # define DMAddBoundary(a,b,c,d,e,f,g,h,i,j,k,l) DMAddBoundary(a,b,c,d,e,f,g,h,j,k,l) 32 #endif 33 34 #ifndef PHYSICS_STRUCT 35 #define PHYSICS_STRUCT 36 typedef struct Physics_private *Physics; 37 struct Physics_private { 38 CeedScalar nu; // Poisson's ratio 39 CeedScalar E; // Young's Modulus 40 }; 41 #endif 42 43 // ----------------------------------------------------------------------------- 44 // Command Line Options 45 // ----------------------------------------------------------------------------- 46 // Problem options 47 typedef enum { 48 ELAS_LIN = 0, ELAS_HYPER_SS = 1, ELAS_HYPER_FS = 2 49 } problemType; 50 static const char *const problemTypes[] = {"linElas", 51 "hyperSS", 52 "hyperFS", 53 "problemType","ELAS_",0 54 }; 55 static const char *const problemTypesForDisp[] = {"Linear elasticity", 56 "Hyper elasticity small strain", 57 "Hyper elasticity finite strain" 58 }; 59 60 // Forcing function options 61 typedef enum { 62 FORCE_NONE = 0, FORCE_CONST = 1, FORCE_MMS = 2 63 } forcingType; 64 static const char *const forcingTypes[] = {"none", 65 "constant", 66 "mms", 67 "forcingType","FORCE_",0 68 }; 69 static const char *const forcingTypesForDisp[] = {"None", 70 "Constant", 71 "Manufactured solution" 72 }; 73 74 // Multigrid options 75 typedef enum { 76 MULTIGRID_LOGARITHMIC = 0, MULTIGRID_UNIFORM = 1, MULTIGRID_NONE = 2 77 } multigridType; 78 static const char *const multigridTypes [] = {"logarithmic", 79 "uniform", 80 "none", 81 "multigridType","MULTIGRID",0 82 }; 83 static const char *const multigridTypesForDisp[] = {"P-multigrid, logarithmic coarsening", 84 "P-multigrind, uniform coarsening", 85 "No multigrid" 86 }; 87 88 typedef PetscErrorCode BCFunc(PetscInt, PetscReal, const PetscReal *, PetscInt, 89 PetscScalar *, void *); 90 // Note: These variables should be updated if additional boundary conditions 91 // are added to boundary.c. 92 BCFunc BCMMS, BCZero, BCClamp; 93 94 // ----------------------------------------------------------------------------- 95 // Structs 96 // ----------------------------------------------------------------------------- 97 // Units 98 typedef struct Units_private *Units; 99 struct Units_private { 100 // Fundamental units 101 PetscScalar meter; 102 PetscScalar kilogram; 103 PetscScalar second; 104 // Derived unit 105 PetscScalar Pascal; 106 }; 107 108 // Application context from user command line options 109 typedef struct AppCtx_private *AppCtx; 110 struct AppCtx_private { 111 char ceedResource[PETSC_MAX_PATH_LEN]; // libCEED backend 112 char meshFile[PETSC_MAX_PATH_LEN]; // exodusII mesh file 113 PetscBool testMode; 114 PetscBool viewSoln; 115 PetscBool viewFinalSoln; 116 problemType problemChoice; 117 forcingType forcingChoice; 118 multigridType multigridChoice; 119 PetscScalar nuSmoother; 120 PetscInt degree; 121 PetscInt qextra; 122 PetscInt numLevels; 123 PetscInt *levelDegrees; 124 PetscInt numIncrements; // Number of steps 125 PetscInt bcClampCount; 126 PetscInt bcClampFaces[16]; 127 PetscScalar bcClampMax[16][7]; 128 PetscInt bcTractionCount; 129 PetscInt bcTractionFaces[16]; 130 PetscScalar bcTractionVector[16][3]; 131 PetscScalar forcingVector[3]; 132 }; 133 134 // Problem specific data 135 // *INDENT-OFF* 136 typedef struct { 137 CeedInt qdatasize; 138 CeedQFunctionUser setupgeo, apply, jacob, energy, diagnostic; 139 const char *setupgeofname, *applyfname, *jacobfname, *energyfname, 140 *diagnosticfname; 141 CeedQuadMode qmode; 142 } problemData; 143 // *INDENT-ON* 144 145 // Data specific to each problem option 146 extern problemData problemOptions[3]; 147 148 // Forcing function data 149 typedef struct { 150 CeedQFunctionUser setupforcing; 151 const char *setupforcingfname; 152 } forcingData; 153 154 extern forcingData forcingOptions[3]; 155 156 // Data for PETSc Matshell 157 typedef struct UserMult_private *UserMult; 158 struct UserMult_private { 159 MPI_Comm comm; 160 DM dm; 161 Vec Xloc, Yloc, NBCs; 162 CeedVector Xceed, Yceed; 163 CeedOperator op; 164 CeedQFunction qf; 165 Ceed ceed; 166 PetscScalar loadIncrement; 167 CeedQFunctionContext ctxPhys, ctxPhysSmoother; 168 }; 169 170 // Data for Jacobian setup routine 171 typedef struct FormJacobCtx_private *FormJacobCtx; 172 struct FormJacobCtx_private { 173 UserMult *jacobCtx; 174 PetscInt numLevels; 175 SNES snesCoarse; 176 Mat *jacobMat, jacobMatCoarse; 177 Vec Ucoarse; 178 }; 179 180 // Data for PETSc Prolongation/Restriction Matshell 181 typedef struct UserMultProlongRestr_private *UserMultProlongRestr; 182 struct UserMultProlongRestr_private { 183 MPI_Comm comm; 184 DM dmC, dmF; 185 Vec locVecC, locVecF; 186 CeedVector ceedVecC, ceedVecF; 187 CeedOperator opProlong, opRestrict; 188 Ceed ceed; 189 }; 190 191 // libCEED data struct for level 192 typedef struct CeedData_private *CeedData; 193 struct CeedData_private { 194 Ceed ceed; 195 CeedBasis basisx, basisu, basisCtoF, basisEnergy, basisDiagnostic; 196 CeedElemRestriction Erestrictx, Erestrictu, Erestrictqdi, 197 ErestrictGradui, ErestrictEnergy, ErestrictDiagnostic, 198 ErestrictqdDiagnostici; 199 CeedQFunction qfApply, qfJacob, qfEnergy, qfDiagnostic; 200 CeedOperator opApply, opJacob, opRestrict, opProlong, opEnergy, 201 opDiagnostic; 202 CeedVector qdata, qdataDiagnostic, gradu, xceed, yceed, truesoln; 203 }; 204 205 // Translate PetscMemType to CeedMemType 206 static inline CeedMemType MemTypeP2C(PetscMemType mtype) { 207 return PetscMemTypeDevice(mtype) ? CEED_MEM_DEVICE : CEED_MEM_HOST; 208 } 209 210 // ----------------------------------------------------------------------------- 211 // Process command line options 212 // ----------------------------------------------------------------------------- 213 // Process general command line options 214 PetscErrorCode ProcessCommandLineOptions(MPI_Comm comm, AppCtx appCtx); 215 216 // Process physics options 217 PetscErrorCode ProcessPhysics(MPI_Comm comm, Physics phys, Units units); 218 219 // ----------------------------------------------------------------------------- 220 // Setup DM 221 // ----------------------------------------------------------------------------- 222 PetscErrorCode CreateBCLabel(DM dm, const char name[]); 223 224 // Create FE by degree 225 PetscErrorCode PetscFECreateByDegree(DM dm, PetscInt dim, PetscInt Nc, 226 PetscBool isSimplex, const char prefix[], 227 PetscInt order, PetscFE *fem); 228 229 // Read mesh and distribute DM in parallel 230 PetscErrorCode CreateDistributedDM(MPI_Comm comm, AppCtx appCtx, DM *dm); 231 232 // Setup DM with FE space of appropriate degree 233 PetscErrorCode SetupDMByDegree(DM dm, AppCtx appCtx, PetscInt order, 234 PetscBool boundary, PetscInt ncompu); 235 236 // ----------------------------------------------------------------------------- 237 // libCEED Functions 238 // ----------------------------------------------------------------------------- 239 // Destroy libCEED objects 240 PetscErrorCode CeedDataDestroy(CeedInt level, CeedData data); 241 242 // Utility function - essential BC dofs are encoded in closure indices as -(i+1) 243 PetscInt Involute(PetscInt i); 244 245 // Utility function to create local CEED restriction from DMPlex 246 PetscErrorCode CreateRestrictionFromPlex(Ceed ceed, DM dm, CeedInt P, 247 CeedInt height, DMLabel domainLabel, CeedInt value, 248 CeedElemRestriction *Erestrict); 249 250 // Utility function to get Ceed Restriction for each domain 251 PetscErrorCode GetRestrictionForDomain(Ceed ceed, DM dm, CeedInt height, 252 DMLabel domainLabel, PetscInt value, CeedInt P, CeedInt Q, CeedInt qdatasize, 253 CeedElemRestriction *restrictq, CeedElemRestriction *restrictx, 254 CeedElemRestriction *restrictqdi); 255 256 // Set up libCEED for a given degree 257 PetscErrorCode SetupLibceedFineLevel(DM dm, DM dmEnergy, DM dmDiagnostic, 258 Ceed ceed, AppCtx appCtx, 259 CeedQFunctionContext physCtx, 260 CeedData *data, PetscInt fineLevel, 261 PetscInt ncompu, PetscInt Ugsz, 262 PetscInt Ulocsz, CeedVector forceCeed, 263 CeedVector neumannCeed); 264 265 // Set up libCEED multigrid level for a given degree 266 PetscErrorCode SetupLibceedLevel(DM dm, Ceed ceed, AppCtx appCtx, 267 CeedData *data, PetscInt level, 268 PetscInt ncompu, PetscInt Ugsz, 269 PetscInt Ulocsz, CeedVector fineMult); 270 271 // Setup context data for Jacobian evaluation 272 PetscErrorCode SetupJacobianCtx(MPI_Comm comm, AppCtx appCtx, DM dm, Vec V, 273 Vec Vloc, CeedData ceedData, Ceed ceed, 274 CeedQFunctionContext ctxPhys, 275 CeedQFunctionContext ctxPhysSmoother, 276 UserMult jacobianCtx); 277 278 // Setup context data for prolongation and restriction operators 279 PetscErrorCode SetupProlongRestrictCtx(MPI_Comm comm, AppCtx appCtx, DM dmC, 280 DM dmF, Vec VF, Vec VlocC, Vec VlocF, 281 CeedData ceedDataC, CeedData ceedDataF, 282 Ceed ceed, 283 UserMultProlongRestr prolongRestrCtx); 284 285 // ----------------------------------------------------------------------------- 286 // Jacobian setup 287 // ----------------------------------------------------------------------------- 288 PetscErrorCode FormJacobian(SNES snes, Vec U, Mat J, Mat Jpre, void *ctx); 289 290 // ----------------------------------------------------------------------------- 291 // Solution output 292 // ----------------------------------------------------------------------------- 293 PetscErrorCode ViewSolution(MPI_Comm comm, Vec U, PetscInt increment, 294 PetscScalar loadIncrement); 295 296 PetscErrorCode ViewDiagnosticQuantities(MPI_Comm comm, DM dmU, 297 UserMult user, Vec U, 298 CeedElemRestriction ErestrictDiagnostic); 299 300 // ----------------------------------------------------------------------------- 301 // libCEED Operators for MatShell 302 // ----------------------------------------------------------------------------- 303 // This function uses libCEED to compute the local action of an operator 304 PetscErrorCode ApplyLocalCeedOp(Vec X, Vec Y, UserMult user); 305 306 // This function uses libCEED to compute the non-linear residual 307 PetscErrorCode FormResidual_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 308 309 // This function uses libCEED to apply the Jacobian for assembly via a SNES 310 PetscErrorCode ApplyJacobianCoarse_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 311 312 // This function uses libCEED to compute the action of the Jacobian 313 PetscErrorCode ApplyJacobian_Ceed(Mat A, Vec X, Vec Y); 314 315 // This function uses libCEED to compute the action of the prolongation operator 316 PetscErrorCode Prolong_Ceed(Mat A, Vec X, Vec Y); 317 318 // This function uses libCEED to compute the action of the restriction operator 319 PetscErrorCode Restrict_Ceed(Mat A, Vec X, Vec Y); 320 321 // This function returns the computed diagonal of the operator 322 PetscErrorCode GetDiag_Ceed(Mat A, Vec D); 323 324 // This function calculates the strain energy in the final solution 325 PetscErrorCode ComputeStrainEnergy(DM dmEnergy, UserMult user, 326 CeedOperator opEnergy, Vec X, 327 PetscReal *energy); 328 329 // ----------------------------------------------------------------------------- 330 // Boundary Functions 331 // ----------------------------------------------------------------------------- 332 // Note: If additional boundary conditions are added, an update is needed in 333 // elasticity.h for the boundaryOptions variable. 334 335 // BCMMS - boundary function 336 // Values on all points of the mesh is set based on given solution below 337 // for u[0], u[1], u[2] 338 PetscErrorCode BCMMS(PetscInt dim, PetscReal loadIncrement, 339 const PetscReal coords[], PetscInt ncompu, 340 PetscScalar *u, void *ctx); 341 342 // BCClamp - fix boundary values with affine transformation at fraction of load 343 // increment 344 PetscErrorCode BCClamp(PetscInt dim, PetscReal loadIncrement, 345 const PetscReal coords[], PetscInt ncompu, 346 PetscScalar *u, void *ctx); 347 348 #endif //setup_h 349