1 #ifndef PETSCLANDAU_H 2 #define PETSCLANDAU_H 3 4 #include <petscdmplex.h> /*I "petscdmplex.h" I*/ 5 #include <petscts.h> 6 7 PETSC_EXTERN PetscErrorCode DMPlexLandauPrintNorms(Vec, PetscInt); 8 PETSC_EXTERN PetscErrorCode DMPlexLandauCreateVelocitySpace(MPI_Comm, PetscInt, const char[], Vec *, Mat *, DM *); 9 PETSC_EXTERN PetscErrorCode DMPlexLandauDestroyVelocitySpace(DM *); 10 PETSC_EXTERN PetscErrorCode DMPlexLandauAccess(DM, Vec, PetscErrorCode (*)(DM, Vec, PetscInt, PetscInt, PetscInt, void *), void *); 11 PETSC_EXTERN PetscErrorCode DMPlexLandauAddMaxwellians(DM, Vec, PetscReal, PetscReal[], PetscReal[], PetscInt, PetscInt, PetscInt, void *); 12 PETSC_EXTERN PetscErrorCode DMPlexLandauCreateMassMatrix(DM dm, Mat *Amat); 13 PETSC_EXTERN PetscErrorCode DMPlexLandauIFunction(TS, PetscReal, Vec, Vec, Vec, void *); 14 PETSC_EXTERN PetscErrorCode DMPlexLandauIJacobian(TS, PetscReal, Vec, Vec, PetscReal, Mat, Mat, void *); 15 16 typedef int LandauIdx; 17 18 /* the Fokker-Planck-Landau context */ 19 #if !defined(LANDAU_MAX_SPECIES) 20 #if defined(PETSC_USE_DMLANDAU_2D) 21 #define LANDAU_MAX_SPECIES 10 22 #define LANDAU_MAX_GRIDS 3 23 #else 24 #define LANDAU_MAX_SPECIES 10 25 #define LANDAU_MAX_GRIDS 3 26 #endif 27 #else 28 #define LANDAU_MAX_GRIDS 3 29 #endif 30 31 #if !defined(LANDAU_MAX_Q) 32 #if defined(LANDAU_MAX_NQ) 33 #error "LANDAU_MAX_NQ but not LANDAU_MAX_Q. Use -DLANDAU_MAX_Q=4 for Q3 elements" 34 #endif 35 #if defined(PETSC_USE_DMLANDAU_2D) 36 #define LANDAU_MAX_Q 5 37 #else 38 // 3D CUDA fails with > 3 (KK-CUDA is OK) 39 #define LANDAU_MAX_Q 3 40 #endif 41 #else 42 #undef LANDAU_MAX_NQ 43 #endif 44 45 #if defined(PETSC_USE_DMLANDAU_2D) 46 #define LANDAU_MAX_Q_FACE LANDAU_MAX_Q 47 #define LANDAU_MAX_NQ (LANDAU_MAX_Q * LANDAU_MAX_Q) 48 #define LANDAU_MAX_BATCH_SZ 1024 49 #define LANDAU_DIM 2 50 #else 51 #define LANDAU_MAX_Q_FACE (LANDAU_MAX_Q * LANDAU_MAX_Q) 52 #define LANDAU_MAX_NQ (LANDAU_MAX_Q * LANDAU_MAX_Q * LANDAU_MAX_Q) 53 #define LANDAU_MAX_BATCH_SZ 64 54 #define LANDAU_DIM 3 55 #endif 56 57 typedef enum { 58 LANDAU_CUDA, 59 LANDAU_KOKKOS, 60 LANDAU_CPU 61 } LandauDeviceType; 62 63 // static data - will be "device" data 64 typedef struct { 65 void *invJ; // nip*dim*dim 66 void *D; // nq*nb*dim 67 void *B; // nq*nb 68 void *alpha; // ns 69 void *beta; // ns 70 void *invMass; // ns 71 void *w; // nip 72 void *x; // nip 73 void *y; // nip 74 void *z; // nip 75 void *Eq_m; // ns - dynamic 76 void *f; // nip*Nf - dynamic (IP) 77 void *dfdx; // nip*Nf - dynamic (IP) 78 void *dfdy; // nip*Nf - dynamic (IP) 79 void *dfdz; // nip*Nf - dynamic (IP) 80 int dim_, ns_, nip_, nq_, nb_; 81 void *NCells; // remove and use elem_offset - TODO 82 void *species_offset; // for each grid, but same for all batched vertices 83 void *mat_offset; // for each grid, but same for all batched vertices 84 void *elem_offset; // for each grid, but same for all batched vertices 85 void *ip_offset; // for each grid, but same for all batched vertices 86 void *ipf_offset; // for each grid, but same for all batched vertices 87 void *ipfdf_data; // for each grid, but same for all batched vertices 88 void *maps; // for each grid, but same for all batched vertices 89 // COO 90 void *coo_elem_offsets; 91 void *coo_elem_point_offsets; 92 void *coo_elem_fullNb; 93 void *coo_vals; 94 LandauIdx coo_n_cellsTot; 95 LandauIdx coo_size; 96 LandauIdx coo_max_fullnb; 97 } LandauStaticData; 98 99 typedef enum { 100 LANDAU_EX2_TSSOLVE, 101 LANDAU_MATRIX_TOTAL, 102 LANDAU_OPERATOR, 103 LANDAU_JACOBIAN_COUNT, 104 LANDAU_JACOBIAN, 105 LANDAU_MASS, 106 LANDAU_F_DF, 107 LANDAU_KERNEL, 108 KSP_FACTOR, 109 KSP_SOLVE, 110 LANDAU_NUM_TIMERS 111 } LandauOMPTimers; 112 113 typedef struct { 114 PetscBool interpolate; /* Generate intermediate mesh elements */ 115 PetscBool gpu_assembly; 116 MPI_Comm comm; /* global communicator to use for errors and diagnostics */ 117 double times[LANDAU_NUM_TIMERS]; 118 PetscBool use_matrix_mass; 119 /* FE */ 120 PetscFE fe[LANDAU_MAX_SPECIES]; 121 /* geometry */ 122 PetscReal radius[LANDAU_MAX_GRIDS]; 123 PetscReal radius_par[LANDAU_MAX_GRIDS]; 124 PetscReal radius_perp[LANDAU_MAX_GRIDS]; 125 PetscReal re_radius; /* RE: radius of refinement along v_perp=0, z>0 */ 126 PetscReal vperp0_radius1; /* RE: radius of refinement along v_perp=0 */ 127 PetscReal vperp0_radius2; /* RE: radius of refinement along v_perp=0 after origin AMR refinement */ 128 PetscBool sphere; // not used 129 PetscBool inflate; // not used 130 PetscReal i_radius[LANDAU_MAX_GRIDS]; // not used 131 PetscReal e_radius; // not used 132 PetscInt num_sections; // not used 133 PetscInt cells0[3]; 134 /* AMR */ 135 PetscBool use_p4est; 136 PetscInt numRERefine; /* RE: refinement along v_perp=0, z > 0 */ 137 PetscInt nZRefine1; /* RE: origin refinement after v_perp=0 refinement */ 138 PetscInt nZRefine2; /* RE: origin refinement after origin AMR refinement */ 139 PetscInt numAMRRefine[LANDAU_MAX_GRIDS]; /* normal AMR - refine from origin */ 140 PetscInt postAMRRefine[LANDAU_MAX_GRIDS]; /* uniform refinement of AMR */ 141 /* relativistic */ 142 PetscBool use_energy_tensor_trick; 143 PetscBool use_relativistic_corrections; 144 /* physics */ 145 PetscReal thermal_temps[LANDAU_MAX_SPECIES]; 146 PetscReal masses[LANDAU_MAX_SPECIES]; /* mass of each species */ 147 PetscReal charges[LANDAU_MAX_SPECIES]; /* charge of each species */ 148 PetscReal n[LANDAU_MAX_SPECIES]; /* number density of each species */ 149 PetscReal m_0; /* reference mass */ 150 PetscReal v_0; /* reference velocity */ 151 PetscReal n_0; /* reference number density */ 152 PetscReal t_0; /* reference time */ 153 PetscReal Ez; 154 PetscReal epsilon0; 155 PetscReal k; 156 PetscReal lnLam; 157 PetscReal electronShift; 158 PetscInt num_species; 159 PetscInt num_grids; 160 PetscInt species_offset[LANDAU_MAX_GRIDS + 1]; // for each grid, but same for all batched vertices 161 PetscInt mat_offset[LANDAU_MAX_GRIDS + 1]; // for each grid, but same for all batched vertices 162 // batching 163 PetscBool jacobian_field_major_order; // this could be a type but lets not get pedantic 164 VecScatter plex_batch; 165 Vec work_vec; 166 IS batch_is; 167 PetscErrorCode (*seqaij_mult)(Mat, Vec, Vec); 168 PetscErrorCode (*seqaij_multtranspose)(Mat, Vec, Vec); 169 PetscErrorCode (*seqaij_solve)(Mat, Vec, Vec); 170 PetscErrorCode (*seqaij_getdiagonal)(Mat, Vec); 171 /* COO */ 172 PetscBool coo_assembly; 173 /* cache */ 174 Mat J; 175 Mat M; 176 Vec X; 177 /* derived type */ 178 void *data; 179 /* computing */ 180 LandauDeviceType deviceType; 181 DM pack; 182 DM plex[LANDAU_MAX_GRIDS]; 183 LandauStaticData SData_d; /* static geometric data on device */ 184 /* diagnostics */ 185 PetscInt verbose; 186 PetscLogEvent events[20]; 187 PetscLogStage stage; 188 PetscObjectState norm_state; 189 PetscInt batch_sz; 190 PetscInt batch_view_idx; 191 } LandauCtx; 192 193 #define LANDAU_SPECIES_MAJOR 194 #if !defined(LANDAU_SPECIES_MAJOR) 195 #define LAND_PACK_IDX(_b, _g) (_b * ctx->num_grids + _g) 196 #define LAND_MOFFSET(_b, _g, _nbch, _ngrid, _mat_off) (_b * _mat_off[_ngrid] + _mat_off[_g]) 197 #else 198 #define LAND_PACK_IDX(_b, _g) (_g * ctx->batch_sz + _b) 199 #define LAND_MOFFSET(_b, _g, _nbch, _ngrid, _mat_off) (_nbch * _mat_off[_g] + _b * (_mat_off[_g + 1] - _mat_off[_g])) 200 #endif 201 202 typedef struct { 203 PetscReal scale; 204 LandauIdx gid; // Landau matrix index (<10,000) 205 } pointInterpolationP4est; 206 typedef struct _lP4estVertexMaps { 207 LandauIdx (*gIdx)[LANDAU_MAX_SPECIES][LANDAU_MAX_NQ]; // #elems * LANDAU_MAX_NQ (spoof for max , Nb) on device, 208 LandauIdx num_elements; 209 LandauIdx num_reduced; 210 LandauIdx num_face; // (Q or Q^2 for 3D) 211 LandauDeviceType deviceType; 212 PetscInt Nf; 213 pointInterpolationP4est (*c_maps)[LANDAU_MAX_Q_FACE]; 214 struct _lP4estVertexMaps *d_self; 215 void *vp1, *vp2, *vp3; 216 PetscInt numgrids; 217 } P4estVertexMaps; 218 219 PETSC_EXTERN PetscErrorCode LandauCreateColoring(Mat, DM, PetscContainer *); 220 #if defined(PETSC_HAVE_CUDA) 221 PETSC_EXTERN PetscErrorCode LandauCUDAJacobian(DM[], const PetscInt, const PetscInt, const PetscInt, const PetscInt[], PetscReal[], PetscScalar[], const PetscScalar[], const LandauStaticData *, const PetscReal, const PetscLogEvent[], const PetscInt[], const PetscInt[], Mat[], Mat); 222 PETSC_EXTERN PetscErrorCode LandauCUDACreateMatMaps(P4estVertexMaps *, pointInterpolationP4est (*)[LANDAU_MAX_Q_FACE], PetscInt[], PetscInt, PetscInt); 223 PETSC_EXTERN PetscErrorCode LandauCUDADestroyMatMaps(P4estVertexMaps *, PetscInt); 224 PETSC_EXTERN PetscErrorCode LandauCUDAStaticDataSet(DM, const PetscInt, const PetscInt, const PetscInt, PetscInt[], PetscInt[], PetscInt[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], LandauStaticData *); 225 PETSC_EXTERN PetscErrorCode LandauCUDAStaticDataClear(LandauStaticData *); 226 #endif 227 #if defined(PETSC_HAVE_KOKKOS) 228 PETSC_EXTERN PetscErrorCode LandauKokkosJacobian(DM[], const PetscInt, const PetscInt, const PetscInt, const PetscInt[], PetscReal[], PetscScalar[], const PetscScalar[], const LandauStaticData *, const PetscReal, const PetscLogEvent[], const PetscInt[], const PetscInt[], Mat[], Mat); 229 PETSC_EXTERN PetscErrorCode LandauKokkosCreateMatMaps(P4estVertexMaps *, pointInterpolationP4est (*)[LANDAU_MAX_Q_FACE], PetscInt[], PetscInt, PetscInt); 230 PETSC_EXTERN PetscErrorCode LandauKokkosDestroyMatMaps(P4estVertexMaps *, PetscInt); 231 PETSC_EXTERN PetscErrorCode LandauKokkosStaticDataSet(DM, const PetscInt, const PetscInt, const PetscInt, PetscInt[], PetscInt[], PetscInt[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], PetscReal[], LandauStaticData *); 232 PETSC_EXTERN PetscErrorCode LandauKokkosStaticDataClear(LandauStaticData *); 233 #endif 234 235 #endif /* PETSCLANDAU_H */ 236