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 <ceed.h> 21 #include <petsc.h> 22 #include <petscdmplex.h> 23 #include <petscfe.h> 24 #include <petscksp.h> 25 #include <stdbool.h> 26 #include <string.h> 27 28 #if PETSC_VERSION_LT(3,14,0) 29 # 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) 30 #endif 31 32 #ifndef PHYSICS_STRUCT 33 #define PHYSICS_STRUCT 34 typedef struct Physics_private *Physics; 35 struct Physics_private { 36 CeedScalar nu; // Poisson's ratio 37 CeedScalar E; // Young's Modulus 38 }; 39 #endif 40 41 // ----------------------------------------------------------------------------- 42 // Command Line Options 43 // ----------------------------------------------------------------------------- 44 // Problem options 45 typedef enum { 46 ELAS_LIN = 0, ELAS_HYPER_SS = 1, ELAS_HYPER_FS = 2 47 } problemType; 48 static const char *const problemTypes[] = {"linElas", 49 "hyperSS", 50 "hyperFS", 51 "problemType","ELAS_",0 52 }; 53 static const char *const problemTypesForDisp[] = {"Linear elasticity", 54 "Hyper elasticity small strain", 55 "Hyper elasticity finite strain" 56 }; 57 58 // Forcing function options 59 typedef enum { 60 FORCE_NONE = 0, FORCE_CONST = 1, FORCE_MMS = 2 61 } forcingType; 62 static const char *const forcingTypes[] = {"none", 63 "constant", 64 "mms", 65 "forcingType","FORCE_",0 66 }; 67 static const char *const forcingTypesForDisp[] = {"None", 68 "Constant", 69 "Manufactured solution" 70 }; 71 72 // Multigrid options 73 typedef enum { 74 MULTIGRID_LOGARITHMIC = 0, MULTIGRID_UNIFORM = 1, MULTIGRID_NONE = 2 75 } multigridType; 76 static const char *const multigridTypes [] = {"logarithmic", 77 "uniform", 78 "none", 79 "multigridType","MULTIGRID",0 80 }; 81 static const char *const multigridTypesForDisp[] = {"P-multigrid, logarithmic coarsening", 82 "P-multigrind, uniform coarsening", 83 "No multigrid" 84 }; 85 86 typedef PetscErrorCode BCFunc(PetscInt, PetscReal, const PetscReal *, PetscInt, 87 PetscScalar *, void *); 88 // Note: These variables should be updated if additional boundary conditions 89 // are added to boundary.c. 90 BCFunc BCMMS, BCZero, BCClamp; 91 92 // ----------------------------------------------------------------------------- 93 // Structs 94 // ----------------------------------------------------------------------------- 95 // Units 96 typedef struct Units_private *Units; 97 struct Units_private { 98 // Fundamental units 99 PetscScalar meter; 100 PetscScalar kilogram; 101 PetscScalar second; 102 // Derived unit 103 PetscScalar Pascal; 104 }; 105 106 // Application context from user command line options 107 typedef struct AppCtx_private *AppCtx; 108 struct AppCtx_private { 109 char ceedResource[PETSC_MAX_PATH_LEN]; // libCEED backend 110 char meshFile[PETSC_MAX_PATH_LEN]; // exodusII mesh file 111 PetscBool testMode; 112 PetscBool viewSoln; 113 PetscBool viewFinalSoln; 114 problemType problemChoice; 115 forcingType forcingChoice; 116 multigridType multigridChoice; 117 PetscScalar nuSmoother; 118 PetscInt degree; 119 PetscInt qextra; 120 PetscInt numLevels; 121 PetscInt *levelDegrees; 122 PetscInt numIncrements; // Number of steps 123 PetscInt bcClampCount; 124 PetscInt bcClampFaces[16]; 125 PetscScalar bcClampMax[16][7]; 126 PetscInt bcTractionCount; 127 PetscInt bcTractionFaces[16]; 128 PetscScalar bcTractionVector[16][3]; 129 PetscScalar forcingVector[3]; 130 }; 131 132 // Problem specific data 133 // *INDENT-OFF* 134 typedef struct { 135 CeedInt qdatasize; 136 CeedQFunctionUser setupgeo, apply, jacob, energy, diagnostic; 137 const char *setupgeofname, *applyfname, *jacobfname, *energyfname, 138 *diagnosticfname; 139 CeedQuadMode qmode; 140 } problemData; 141 // *INDENT-ON* 142 143 // Data specific to each problem option 144 extern problemData problemOptions[3]; 145 146 // Forcing function data 147 typedef struct { 148 CeedQFunctionUser setupforcing; 149 const char *setupforcingfname; 150 } forcingData; 151 152 extern forcingData forcingOptions[3]; 153 154 // Data for PETSc Matshell 155 typedef struct UserMult_private *UserMult; 156 struct UserMult_private { 157 MPI_Comm comm; 158 DM dm; 159 Vec Xloc, Yloc, NBCs; 160 CeedVector Xceed, Yceed; 161 CeedOperator op; 162 CeedQFunction qf; 163 Ceed ceed; 164 PetscScalar loadIncrement; 165 CeedQFunctionContext ctxPhys, ctxPhysSmoother; 166 }; 167 168 // Data for Jacobian setup routine 169 typedef struct FormJacobCtx_private *FormJacobCtx; 170 struct FormJacobCtx_private { 171 UserMult *jacobCtx; 172 PetscInt numLevels; 173 SNES snesCoarse; 174 Mat *jacobMat, jacobMatCoarse; 175 Vec Ucoarse; 176 }; 177 178 // Data for PETSc Prolongation/Restriction Matshell 179 typedef struct UserMultProlongRestr_private *UserMultProlongRestr; 180 struct UserMultProlongRestr_private { 181 MPI_Comm comm; 182 DM dmC, dmF; 183 Vec locVecC, locVecF; 184 CeedVector ceedVecC, ceedVecF; 185 CeedOperator opProlong, opRestrict; 186 Ceed ceed; 187 }; 188 189 // libCEED data struct for level 190 typedef struct CeedData_private *CeedData; 191 struct CeedData_private { 192 Ceed ceed; 193 CeedBasis basisx, basisu, basisCtoF, basisEnergy, basisDiagnostic; 194 CeedElemRestriction Erestrictx, Erestrictu, Erestrictqdi, 195 ErestrictGradui, ErestrictEnergy, ErestrictDiagnostic, 196 ErestrictqdDiagnostici; 197 CeedQFunction qfApply, qfJacob, qfEnergy, qfDiagnostic; 198 CeedOperator opApply, opJacob, opRestrict, opProlong, opEnergy, 199 opDiagnostic; 200 CeedVector qdata, qdataDiagnostic, gradu, xceed, yceed, truesoln; 201 }; 202 203 // Translate PetscMemType to CeedMemType 204 static inline CeedMemType MemTypeP2C(PetscMemType mtype) { 205 return PetscMemTypeDevice(mtype) ? CEED_MEM_DEVICE : CEED_MEM_HOST; 206 } 207 208 // ----------------------------------------------------------------------------- 209 // Process command line options 210 // ----------------------------------------------------------------------------- 211 // Process general command line options 212 PetscErrorCode ProcessCommandLineOptions(MPI_Comm comm, AppCtx appCtx); 213 214 // Process physics options 215 PetscErrorCode ProcessPhysics(MPI_Comm comm, Physics phys, Units units); 216 217 // ----------------------------------------------------------------------------- 218 // Setup DM 219 // ----------------------------------------------------------------------------- 220 PetscErrorCode CreateBCLabel(DM dm, const char name[]); 221 222 // Create FE by degree 223 PetscErrorCode PetscFECreateByDegree(DM dm, PetscInt dim, PetscInt Nc, 224 PetscBool isSimplex, const char prefix[], 225 PetscInt order, PetscFE *fem); 226 227 // Read mesh and distribute DM in parallel 228 PetscErrorCode CreateDistributedDM(MPI_Comm comm, AppCtx appCtx, DM *dm); 229 230 // Setup DM with FE space of appropriate degree 231 PetscErrorCode SetupDMByDegree(DM dm, AppCtx appCtx, PetscInt order, 232 PetscBool boundary, PetscInt ncompu); 233 234 // ----------------------------------------------------------------------------- 235 // libCEED Functions 236 // ----------------------------------------------------------------------------- 237 // Destroy libCEED objects 238 PetscErrorCode CeedDataDestroy(CeedInt level, CeedData data); 239 240 // Utility function - essential BC dofs are encoded in closure indices as -(i+1) 241 PetscInt Involute(PetscInt i); 242 243 // Utility function to create local CEED restriction from DMPlex 244 PetscErrorCode CreateRestrictionFromPlex(Ceed ceed, DM dm, CeedInt P, 245 CeedInt height, DMLabel domainLabel, CeedInt value, 246 CeedElemRestriction *Erestrict); 247 248 // Utility function to get Ceed Restriction for each domain 249 PetscErrorCode GetRestrictionForDomain(Ceed ceed, DM dm, CeedInt height, 250 DMLabel domainLabel, PetscInt value, CeedInt P, CeedInt Q, CeedInt qdatasize, 251 CeedElemRestriction *restrictq, CeedElemRestriction *restrictx, 252 CeedElemRestriction *restrictqdi); 253 254 // Set up libCEED for a given degree 255 PetscErrorCode SetupLibceedFineLevel(DM dm, DM dmEnergy, DM dmDiagnostic, 256 Ceed ceed, AppCtx appCtx, 257 CeedQFunctionContext physCtx, 258 CeedData *data, PetscInt fineLevel, 259 PetscInt ncompu, PetscInt Ugsz, 260 PetscInt Ulocsz, CeedVector forceCeed, 261 CeedVector neumannCeed); 262 263 // Set up libCEED multigrid level for a given degree 264 PetscErrorCode SetupLibceedLevel(DM dm, Ceed ceed, AppCtx appCtx, 265 CeedData *data, PetscInt level, 266 PetscInt ncompu, PetscInt Ugsz, 267 PetscInt Ulocsz, CeedVector fineMult); 268 269 // Setup context data for Jacobian evaluation 270 PetscErrorCode SetupJacobianCtx(MPI_Comm comm, AppCtx appCtx, DM dm, Vec V, 271 Vec Vloc, CeedData ceedData, Ceed ceed, 272 CeedQFunctionContext ctxPhys, 273 CeedQFunctionContext ctxPhysSmoother, 274 UserMult jacobianCtx); 275 276 // Setup context data for prolongation and restriction operators 277 PetscErrorCode SetupProlongRestrictCtx(MPI_Comm comm, AppCtx appCtx, DM dmC, 278 DM dmF, Vec VF, Vec VlocC, Vec VlocF, 279 CeedData ceedDataC, CeedData ceedDataF, 280 Ceed ceed, 281 UserMultProlongRestr prolongRestrCtx); 282 283 // ----------------------------------------------------------------------------- 284 // Jacobian setup 285 // ----------------------------------------------------------------------------- 286 PetscErrorCode FormJacobian(SNES snes, Vec U, Mat J, Mat Jpre, void *ctx); 287 288 // ----------------------------------------------------------------------------- 289 // Solution output 290 // ----------------------------------------------------------------------------- 291 PetscErrorCode ViewSolution(MPI_Comm comm, Vec U, PetscInt increment, 292 PetscScalar loadIncrement); 293 294 PetscErrorCode ViewDiagnosticQuantities(MPI_Comm comm, DM dmU, 295 UserMult user, Vec U, 296 CeedElemRestriction ErestrictDiagnostic); 297 298 // ----------------------------------------------------------------------------- 299 // libCEED Operators for MatShell 300 // ----------------------------------------------------------------------------- 301 // This function uses libCEED to compute the local action of an operator 302 PetscErrorCode ApplyLocalCeedOp(Vec X, Vec Y, UserMult user); 303 304 // This function uses libCEED to compute the non-linear residual 305 PetscErrorCode FormResidual_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 306 307 // This function uses libCEED to apply the Jacobian for assembly via a SNES 308 PetscErrorCode ApplyJacobianCoarse_Ceed(SNES snes, Vec X, Vec Y, void *ctx); 309 310 // This function uses libCEED to compute the action of the Jacobian 311 PetscErrorCode ApplyJacobian_Ceed(Mat A, Vec X, Vec Y); 312 313 // This function uses libCEED to compute the action of the prolongation operator 314 PetscErrorCode Prolong_Ceed(Mat A, Vec X, Vec Y); 315 316 // This function uses libCEED to compute the action of the restriction operator 317 PetscErrorCode Restrict_Ceed(Mat A, Vec X, Vec Y); 318 319 // This function returns the computed diagonal of the operator 320 PetscErrorCode GetDiag_Ceed(Mat A, Vec D); 321 322 // This function calculates the strain energy in the final solution 323 PetscErrorCode ComputeStrainEnergy(DM dmEnergy, UserMult user, 324 CeedOperator opEnergy, Vec X, 325 PetscReal *energy); 326 327 // ----------------------------------------------------------------------------- 328 // Boundary Functions 329 // ----------------------------------------------------------------------------- 330 // Note: If additional boundary conditions are added, an update is needed in 331 // elasticity.h for the boundaryOptions variable. 332 333 // BCMMS - boundary function 334 // Values on all points of the mesh is set based on given solution below 335 // for u[0], u[1], u[2] 336 PetscErrorCode BCMMS(PetscInt dim, PetscReal loadIncrement, 337 const PetscReal coords[], PetscInt ncompu, 338 PetscScalar *u, void *ctx); 339 340 // BCClamp - fix boundary values with affine transformation at fraction of load 341 // increment 342 PetscErrorCode BCClamp(PetscInt dim, PetscReal loadIncrement, 343 const PetscReal coords[], PetscInt ncompu, 344 PetscScalar *u, void *ctx); 345 346 #endif //setup_h 347