1 static char help[] = "Runaway electron model with Landau collision operator\n\n"; 2 3 #include <petscdmplex.h> 4 #include <petsclandau.h> 5 #include <petscts.h> 6 #include <petscds.h> 7 #include <petscdmcomposite.h> 8 #include <petsc/private/petscimpl.h> 9 10 #if defined(PETSC_HAVE_CUDA_NVTX) 11 #if PETSC_PKG_CUDA_VERSION_GE(10, 0, 0) 12 #include <nvtx3/nvToolsExt.h> 13 #else 14 #include <nvToolsExt.h> 15 #endif 16 #endif 17 18 /* data for runaway electron model */ 19 typedef struct REctx_struct { 20 PetscErrorCode (*test)(TS, Vec, PetscInt, PetscReal, PetscBool, LandauCtx *, struct REctx_struct *); 21 PetscErrorCode (*impuritySrcRate)(PetscReal, PetscReal *, LandauCtx *); 22 PetscErrorCode (*E)(Vec, Vec, PetscInt, PetscReal, LandauCtx *, PetscReal *); 23 PetscReal T_cold; /* temperature of newly ionized electrons and impurity ions */ 24 PetscReal ion_potential; /* ionization potential of impurity */ 25 PetscReal Ne_ion; /* effective number of electrons shed in ioization of impurity */ 26 PetscReal Ez_initial; 27 PetscReal L; /* inductance */ 28 Vec X_0; 29 PetscInt imp_idx; /* index for impurity ionizing sink */ 30 PetscReal pulse_start; 31 PetscReal pulse_width; 32 PetscReal pulse_rate; 33 PetscReal current_rate; 34 PetscInt plotIdx; 35 PetscInt plotStep; 36 PetscInt idx; /* cache */ 37 PetscReal j; /* cache */ 38 PetscReal plotDt; 39 PetscBool plotting; 40 PetscBool use_spitzer_eta; 41 PetscInt print_period; 42 PetscInt grid_view_idx; 43 } REctx; 44 45 static const PetscReal kev_joul = 6.241506479963235e+15; /* 1/1000e */ 46 47 #define RE_CUT 3. 48 /* < v, u_re * v * q > */ 49 static void f0_j_re(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 50 { 51 PetscReal n_e = PetscRealPart(u[0]); 52 if (dim == 2) { 53 if (x[1] > RE_CUT || x[1] < -RE_CUT) { /* simply a cutoff for REs. v_|| > 3 v(T_e) */ 54 *f0 = n_e * 2. * PETSC_PI * x[0] * x[1] * constants[0]; /* n * r * v_|| * q */ 55 } else { 56 *f0 = 0; 57 } 58 } else { 59 if (x[2] > RE_CUT || x[2] < -RE_CUT) { /* simply a cutoff for REs. v_|| > 3 v(T_e) */ 60 *f0 = n_e * x[2] * constants[0]; 61 } else { 62 *f0 = 0; 63 } 64 } 65 } 66 67 /* sum < v, u*v*q > */ 68 static void f0_jz_sum(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar q[], PetscScalar *f0) 69 { 70 PetscInt ii; 71 f0[0] = 0; 72 if (dim == 2) { 73 for (ii = 0; ii < Nf; ii++) f0[0] += u[ii] * 2. * PETSC_PI * x[0] * x[1] * q[ii]; /* n * r * v_|| * q * v_0 */ 74 } else { 75 for (ii = 0; ii < Nf; ii++) f0[0] += u[ii] * x[2] * q[ii]; /* n * v_|| * q * v_0 */ 76 } 77 } 78 79 /* < v, n_e > */ 80 static void f0_n(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 81 { 82 PetscInt ii = (PetscInt)PetscRealPart(constants[0]); 83 if (dim == 2) f0[0] = 2. * PETSC_PI * x[0] * u[ii]; 84 else f0[0] = u[ii]; 85 } 86 87 /* < v, n_e v_|| > */ 88 static void f0_vz(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 89 { 90 PetscInt ii = (PetscInt)PetscRealPart(constants[0]); 91 if (dim == 2) f0[0] = u[ii] * 2. * PETSC_PI * x[0] * x[1]; /* n r v_|| */ 92 else f0[0] = u[ii] * x[2]; /* n v_|| */ 93 } 94 95 /* < v, n_e (v-shift) > */ 96 static void f0_ve_shift(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 97 { 98 PetscReal vz = numConstants > 0 ? PetscRealPart(constants[0]) : 0; 99 if (dim == 2) *f0 = u[0] * 2. * PETSC_PI * x[0] * PetscSqrtReal(x[0] * x[0] + (x[1] - vz) * (x[1] - vz)); /* n r v */ 100 else { 101 *f0 = u[0] * PetscSqrtReal(x[0] * x[0] + x[1] * x[1] + (x[2] - vz) * (x[2] - vz)); /* n v */ 102 } 103 } 104 105 /* CalculateE - Calculate the electric field */ 106 /* T -- Electron temperature */ 107 /* n -- Electron density */ 108 /* lnLambda -- */ 109 /* eps0 -- */ 110 /* E -- output E, input \hat E */ 111 static PetscReal CalculateE(PetscReal Tev, PetscReal n, PetscReal lnLambda, PetscReal eps0, PetscReal *E) 112 { 113 PetscReal c, e, m; 114 115 PetscFunctionBegin; 116 c = 299792458.0; 117 e = 1.602176e-19; 118 m = 9.10938e-31; 119 if (1) { 120 double Ec, Ehat = *E, betath = PetscSqrtReal(2 * Tev * e / (m * c * c)), j0 = Ehat * 7 / (PetscSqrtReal(2) * 2) * PetscPowReal(betath, 3) * n * e * c; 121 Ec = n * lnLambda * PetscPowReal(e, 3) / (4 * PETSC_PI * PetscPowReal(eps0, 2) * m * c * c); 122 *E = Ec; 123 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "CalculateE j0=%g Ec = %g\n", j0, Ec)); 124 } else { 125 PetscReal Ed, vth; 126 vth = PetscSqrtReal(8 * Tev * e / (m * PETSC_PI)); 127 Ed = n * lnLambda * PetscPowReal(e, 3) / (4 * PETSC_PI * PetscPowReal(eps0, 2) * m * vth * vth); 128 *E = Ed; 129 } 130 PetscFunctionReturn(PETSC_SUCCESS); 131 } 132 133 static PetscReal Spitzer(PetscReal m_e, PetscReal e, PetscReal Z, PetscReal epsilon0, PetscReal lnLam, PetscReal kTe_joules) 134 { 135 PetscReal Fz = (1 + 1.198 * Z + 0.222 * Z * Z) / (1 + 2.966 * Z + 0.753 * Z * Z), eta; 136 eta = Fz * 4. / 3. * PetscSqrtReal(2. * PETSC_PI) * Z * PetscSqrtReal(m_e) * PetscSqr(e) * lnLam * PetscPowReal(4 * PETSC_PI * epsilon0, -2.) * PetscPowReal(kTe_joules, -1.5); 137 return eta; 138 } 139 140 static PetscErrorCode testNone(TS ts, Vec X, PetscInt stepi, PetscReal time, PetscBool islast, LandauCtx *ctx, REctx *rectx) 141 { 142 PetscFunctionBeginUser; 143 PetscFunctionReturn(PETSC_SUCCESS); 144 } 145 146 static PetscErrorCode testSpitzer(TS ts, Vec X, PetscInt stepi, PetscReal time, PetscBool islast, LandauCtx *ctx, REctx *rectx) 147 { 148 PetscInt ii, nDMs; 149 PetscDS prob; 150 static PetscReal old_ratio = 1e10; 151 TSConvergedReason reason; 152 PetscReal J, J_re, spit_eta, Te_kev = 0, E, ratio, Z, n_e, v, v2; 153 PetscScalar user[2] = {0., ctx->charges[0]}, q[LANDAU_MAX_SPECIES], tt[LANDAU_MAX_SPECIES], vz; 154 PetscReal dt; 155 DM pack, plexe = ctx->plex[0], plexi = (ctx->num_grids == 1) ? NULL : ctx->plex[1]; 156 Vec *XsubArray; 157 158 PetscFunctionBeginUser; 159 PetscCheck(ctx->num_species == 2, PETSC_COMM_SELF, PETSC_ERR_PLIB, "ctx->num_species %" PetscInt_FMT " != 2", ctx->num_species); 160 PetscCall(VecGetDM(X, &pack)); 161 PetscCheck(pack, PETSC_COMM_SELF, PETSC_ERR_PLIB, "no DM"); 162 PetscCall(DMCompositeGetNumberDM(pack, &nDMs)); 163 PetscCheck(nDMs == ctx->num_grids * ctx->batch_sz, PETSC_COMM_SELF, PETSC_ERR_PLIB, "nDMs != ctx->num_grids*ctx->batch_sz %" PetscInt_FMT " != %" PetscInt_FMT, nDMs, ctx->num_grids * ctx->batch_sz); 164 PetscCall(PetscMalloc(sizeof(*XsubArray) * nDMs, &XsubArray)); 165 PetscCall(DMCompositeGetAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 166 PetscCall(TSGetTimeStep(ts, &dt)); 167 /* get current for each grid */ 168 for (ii = 0; ii < ctx->num_species; ii++) q[ii] = ctx->charges[ii]; 169 PetscCall(DMGetDS(plexe, &prob)); 170 PetscCall(PetscDSSetConstants(prob, 2, &q[0])); 171 PetscCall(PetscDSSetObjective(prob, 0, &f0_jz_sum)); 172 PetscCall(DMPlexComputeIntegralFEM(plexe, XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, 0)], tt, NULL)); 173 J = -ctx->n_0 * ctx->v_0 * PetscRealPart(tt[0]); 174 if (plexi) { // add first (only) ion 175 PetscCall(DMGetDS(plexi, &prob)); 176 PetscCall(PetscDSSetConstants(prob, 1, &q[1])); 177 PetscCall(PetscDSSetObjective(prob, 0, &f0_jz_sum)); 178 PetscCall(DMPlexComputeIntegralFEM(plexi, XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, 1)], tt, NULL)); 179 J += -ctx->n_0 * ctx->v_0 * PetscRealPart(tt[0]); 180 } 181 /* get N_e */ 182 PetscCall(DMGetDS(plexe, &prob)); 183 PetscCall(PetscDSSetConstants(prob, 1, user)); 184 PetscCall(PetscDSSetObjective(prob, 0, &f0_n)); 185 PetscCall(DMPlexComputeIntegralFEM(plexe, XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, 0)], tt, NULL)); 186 n_e = PetscRealPart(tt[0]) * ctx->n_0; 187 /* Z */ 188 Z = -ctx->charges[1] / ctx->charges[0]; 189 /* remove drift */ 190 if (0) { 191 user[0] = 0; // electrons 192 PetscCall(DMGetDS(plexe, &prob)); 193 PetscCall(PetscDSSetConstants(prob, 1, user)); 194 PetscCall(PetscDSSetObjective(prob, 0, &f0_vz)); 195 PetscCall(DMPlexComputeIntegralFEM(plexe, XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, 0)], tt, NULL)); 196 vz = ctx->n_0 * PetscRealPart(tt[0]) / n_e; /* non-dimensional */ 197 } else vz = 0; 198 /* thermal velocity */ 199 PetscCall(DMGetDS(plexe, &prob)); 200 PetscCall(PetscDSSetConstants(prob, 1, &vz)); 201 PetscCall(PetscDSSetObjective(prob, 0, &f0_ve_shift)); 202 PetscCall(DMPlexComputeIntegralFEM(plexe, XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, 0)], tt, NULL)); 203 v = ctx->n_0 * ctx->v_0 * PetscRealPart(tt[0]) / n_e; /* remove number density to get velocity */ 204 v2 = PetscSqr(v); /* use real space: m^2 / s^2 */ 205 Te_kev = (v2 * ctx->masses[0] * PETSC_PI / 8) * kev_joul; /* temperature in kev */ 206 spit_eta = Spitzer(ctx->masses[0], -ctx->charges[0], Z, ctx->epsilon0, ctx->lambdas[0][1], Te_kev / kev_joul); /* kev --> J (kT) */ 207 if (0) { 208 PetscCall(DMGetDS(plexe, &prob)); 209 PetscCall(PetscDSSetConstants(prob, 1, q)); 210 PetscCall(PetscDSSetObjective(prob, 0, &f0_j_re)); 211 PetscCall(DMPlexComputeIntegralFEM(plexe, XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, 0)], tt, NULL)); 212 } else tt[0] = 0; 213 J_re = -ctx->n_0 * ctx->v_0 * PetscRealPart(tt[0]); 214 PetscCall(DMCompositeRestoreAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 215 PetscCall(PetscFree(XsubArray)); 216 217 if (rectx->use_spitzer_eta) { 218 E = ctx->Ez = spit_eta * (rectx->j - J_re); 219 } else { 220 E = ctx->Ez; /* keep real E */ 221 rectx->j = J; /* cache */ 222 } 223 224 ratio = E / J / spit_eta; 225 if (stepi > 10 && !rectx->use_spitzer_eta && (old_ratio - ratio < 1.e-6)) { 226 rectx->pulse_start = time + 0.98 * dt; 227 rectx->use_spitzer_eta = PETSC_TRUE; 228 } 229 PetscCall(TSGetConvergedReason(ts, &reason)); 230 PetscCall(TSGetConvergedReason(ts, &reason)); 231 if (rectx->plotting || stepi == 0 || reason || rectx->pulse_start == time + 0.98 * dt) { 232 PetscCall(PetscPrintf(ctx->comm, "testSpitzer: %4" PetscInt_FMT ") time=%11.4e n_e= %10.3e E= %10.3e J= %10.3e J_re= %10.3e %.3g%% Te_kev= %10.3e Z_eff=%g E/J to eta ratio= %g (diff=%g) %s %s spit_eta=%g\n", stepi, (double)time, 233 (double)(n_e / ctx->n_0), (double)ctx->Ez, (double)J, (double)J_re, (double)(100 * J_re / J), (double)Te_kev, (double)Z, (double)ratio, (double)(old_ratio - ratio), rectx->use_spitzer_eta ? "using Spitzer eta*J E" : "constant E", rectx->pulse_start != time + 0.98 * dt ? "normal" : "transition", (double)spit_eta)); 234 PetscCheck(rectx->pulse_start != (time + 0.98 * dt), PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Spitzer complete ratio=%g", (double)ratio); 235 } 236 old_ratio = ratio; 237 PetscFunctionReturn(PETSC_SUCCESS); 238 } 239 240 static const double ppp = 2; 241 static void f0_0_diff_lp(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 242 { 243 LandauCtx *ctx = (LandauCtx *)constants; 244 REctx *rectx = (REctx *)ctx->data; 245 PetscInt ii = rectx->idx, i; 246 const PetscReal kT_m = ctx->k * ctx->thermal_temps[ii] / ctx->masses[ii]; /* kT/m */ 247 const PetscReal n = ctx->n[ii]; 248 PetscReal diff, f_maxwell, v2 = 0, theta = 2 * kT_m / (ctx->v_0 * ctx->v_0); /* theta = 2kT/mc^2 */ 249 for (i = 0; i < dim; ++i) v2 += x[i] * x[i]; 250 f_maxwell = n * PetscPowReal(PETSC_PI * theta, -1.5) * (PetscExpReal(-v2 / theta)); 251 diff = 2. * PETSC_PI * x[0] * (PetscRealPart(u[ii]) - f_maxwell); 252 f0[0] = PetscPowReal(diff, ppp); 253 } 254 255 static void f0_0_maxwellian_lp(PetscInt dim, PetscInt Nf, PetscInt NfAux, const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 256 { 257 LandauCtx *ctx = (LandauCtx *)constants; 258 REctx *rectx = (REctx *)ctx->data; 259 PetscInt ii = rectx->idx, i; 260 const PetscReal kT_m = ctx->k * ctx->thermal_temps[ii] / ctx->masses[ii]; /* kT/m */ 261 const PetscReal n = ctx->n[ii]; 262 PetscReal f_maxwell, v2 = 0, theta = 2 * kT_m / (ctx->v_0 * ctx->v_0); /* theta = 2kT/mc^2 */ 263 for (i = 0; i < dim; ++i) v2 += x[i] * x[i]; 264 f_maxwell = 2. * PETSC_PI * x[0] * n * PetscPowReal(PETSC_PI * theta, -1.5) * (PetscExpReal(-v2 / theta)); 265 f0[0] = PetscPowReal(f_maxwell, ppp); 266 } 267 268 static PetscErrorCode testStable(TS ts, Vec X, PetscInt stepi, PetscReal time, PetscBool islast, LandauCtx *ctx, REctx *rectx) 269 { 270 PetscDS prob; 271 Vec X2; 272 PetscReal ediff, idiff = 0, lpm0, lpm1 = 1; 273 PetscScalar tt[LANDAU_MAX_SPECIES]; 274 DM dm, plex = ctx->plex[0]; 275 276 PetscFunctionBeginUser; 277 PetscCall(VecGetDM(X, &dm)); 278 PetscCall(DMGetDS(plex, &prob)); 279 PetscCall(VecDuplicate(X, &X2)); 280 PetscCall(VecCopy(X, X2)); 281 if (!rectx->X_0) { 282 PetscCall(VecDuplicate(X, &rectx->X_0)); 283 PetscCall(VecCopy(X, rectx->X_0)); 284 } 285 PetscCall(VecAXPY(X, -1.0, rectx->X_0)); 286 PetscCall(PetscDSSetConstants(prob, sizeof(LandauCtx) / sizeof(PetscScalar), (PetscScalar *)ctx)); 287 rectx->idx = 0; 288 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_diff_lp)); 289 PetscCall(DMPlexComputeIntegralFEM(plex, X2, tt, NULL)); 290 ediff = PetscPowReal(PetscRealPart(tt[0]), 1. / ppp); 291 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_maxwellian_lp)); 292 PetscCall(DMPlexComputeIntegralFEM(plex, X2, tt, NULL)); 293 lpm0 = PetscPowReal(PetscRealPart(tt[0]), 1. / ppp); 294 if (ctx->num_species > 1) { 295 rectx->idx = 1; 296 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_diff_lp)); 297 PetscCall(DMPlexComputeIntegralFEM(plex, X2, tt, NULL)); 298 idiff = PetscPowReal(PetscRealPart(tt[0]), 1. / ppp); 299 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_maxwellian_lp)); 300 PetscCall(DMPlexComputeIntegralFEM(plex, X2, tt, NULL)); 301 lpm1 = PetscPowReal(PetscRealPart(tt[0]), 1. / ppp); 302 } 303 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "%s %" PetscInt_FMT ") time=%10.3e n-%d norm electrons/max=%20.13e ions/max=%20.13e\n", "----", stepi, (double)time, (int)ppp, (double)(ediff / lpm0), (double)(idiff / lpm1))); 304 /* view */ 305 PetscCall(VecCopy(X2, X)); 306 PetscCall(VecDestroy(&X2)); 307 if (islast) { 308 PetscCall(VecDestroy(&rectx->X_0)); 309 rectx->X_0 = NULL; 310 } 311 PetscFunctionReturn(PETSC_SUCCESS); 312 } 313 314 static PetscErrorCode EInduction(Vec X, Vec X_t, PetscInt step, PetscReal time, LandauCtx *ctx, PetscReal *a_E) 315 { 316 REctx *rectx = (REctx *)ctx->data; 317 PetscInt ii; 318 DM dm, plex; 319 PetscScalar tt[LANDAU_MAX_SPECIES], qv0[LANDAU_MAX_SPECIES]; 320 PetscReal dJ_dt; 321 PetscDS prob; 322 323 PetscFunctionBeginUser; 324 for (ii = 0; ii < ctx->num_species; ii++) qv0[ii] = ctx->charges[ii] * ctx->v_0; 325 PetscCall(VecGetDM(X, &dm)); 326 PetscCall(DMGetDS(dm, &prob)); 327 PetscCall(DMConvert(dm, DMPLEX, &plex)); 328 /* get d current / dt */ 329 PetscCall(PetscDSSetConstants(prob, ctx->num_species, qv0)); 330 PetscCall(PetscDSSetObjective(prob, 0, &f0_jz_sum)); 331 PetscCheck(X_t, PETSC_COMM_SELF, PETSC_ERR_PLIB, "X_t"); 332 PetscCall(DMPlexComputeIntegralFEM(plex, X_t, tt, NULL)); 333 dJ_dt = -ctx->n_0 * PetscRealPart(tt[0]) / ctx->t_0; 334 /* E induction */ 335 *a_E = -rectx->L * dJ_dt + rectx->Ez_initial; 336 PetscCall(DMDestroy(&plex)); 337 PetscFunctionReturn(PETSC_SUCCESS); 338 } 339 340 static PetscErrorCode EConstant(Vec X, Vec X_t, PetscInt step, PetscReal time, LandauCtx *ctx, PetscReal *a_E) 341 { 342 PetscFunctionBeginUser; 343 *a_E = ctx->Ez; 344 PetscFunctionReturn(PETSC_SUCCESS); 345 } 346 347 static PetscErrorCode ENone(Vec X, Vec X_t, PetscInt step, PetscReal time, LandauCtx *ctx, PetscReal *a_E) 348 { 349 PetscFunctionBeginUser; 350 *a_E = 0; 351 PetscFunctionReturn(PETSC_SUCCESS); 352 } 353 354 /* ------------------------------------------------------------------- */ 355 /* 356 FormSource - Evaluates source terms F(t). 357 358 Input Parameters: 359 . ts - the TS context 360 . time - 361 . X_dummmy - input vector 362 . dummy - optional user-defined context, as set by SNESSetFunction() 363 364 Output Parameter: 365 . F - function vector 366 */ 367 static PetscErrorCode FormSource(TS ts, PetscReal ftime, Vec X_dummmy, Vec F, void *dummy) 368 { 369 PetscReal new_imp_rate; 370 LandauCtx *ctx; 371 DM pack; 372 REctx *rectx; 373 374 PetscFunctionBeginUser; 375 PetscCall(TSGetDM(ts, &pack)); 376 PetscCall(DMGetApplicationContext(pack, &ctx)); 377 rectx = (REctx *)ctx->data; 378 /* check for impurities */ 379 PetscCall(rectx->impuritySrcRate(ftime, &new_imp_rate, ctx)); 380 if (new_imp_rate != 0) { 381 if (new_imp_rate != rectx->current_rate) { 382 PetscInt ii; 383 PetscReal dne_dt, dni_dt, tilda_ns[LANDAU_MAX_SPECIES], temps[LANDAU_MAX_SPECIES]; 384 Vec globFarray[LANDAU_MAX_GRIDS * LANDAU_MAX_BATCH_SZ]; 385 rectx->current_rate = new_imp_rate; 386 for (ii = 1; ii < LANDAU_MAX_SPECIES; ii++) tilda_ns[ii] = 0; 387 for (ii = 1; ii < LANDAU_MAX_SPECIES; ii++) temps[ii] = 1; 388 dni_dt = new_imp_rate /* *ctx->t_0 */; /* fully ionized immediately, no normalize, stay in non-dim */ 389 dne_dt = new_imp_rate * rectx->Ne_ion /* *ctx->t_0 */; 390 tilda_ns[0] = dne_dt; 391 tilda_ns[rectx->imp_idx] = dni_dt; 392 temps[0] = rectx->T_cold; 393 temps[rectx->imp_idx] = rectx->T_cold; 394 PetscCall(PetscInfo(ctx->plex[0], "\tHave new_imp_rate= %10.3e time= %10.3e de/dt= %10.3e di/dt= %10.3e ***\n", (double)new_imp_rate, (double)ftime, (double)dne_dt, (double)dni_dt)); 395 PetscCall(DMCompositeGetAccessArray(pack, F, ctx->num_grids * ctx->batch_sz, NULL, globFarray)); 396 for (PetscInt grid = 0; grid < ctx->num_grids; grid++) { 397 /* add it */ 398 PetscCall(DMPlexLandauAddMaxwellians(ctx->plex[grid], globFarray[LAND_PACK_IDX(0, grid)], ftime, temps, tilda_ns, grid, 0, 1, ctx)); 399 } 400 // Does DMCompositeRestoreAccessArray copy the data back? (no) 401 PetscCall(DMCompositeRestoreAccessArray(pack, F, ctx->num_grids * ctx->batch_sz, NULL, globFarray)); 402 } 403 } else { 404 PetscCall(VecZeroEntries(F)); 405 rectx->current_rate = 0; 406 } 407 PetscFunctionReturn(PETSC_SUCCESS); 408 } 409 410 static PetscErrorCode Monitor(TS ts, PetscInt stepi, PetscReal time, Vec X, void *actx) 411 { 412 LandauCtx *ctx = (LandauCtx *)actx; /* user-defined application context */ 413 REctx *rectx = (REctx *)ctx->data; 414 DM pack = NULL; 415 Vec globXArray[LANDAU_MAX_GRIDS * LANDAU_MAX_BATCH_SZ]; 416 TSConvergedReason reason; 417 418 PetscFunctionBeginUser; 419 PetscCall(TSGetConvergedReason(ts, &reason)); 420 if (rectx->grid_view_idx != -1 || (reason && ctx->verbose > 3)) { 421 PetscCall(VecGetDM(X, &pack)); 422 PetscCall(DMCompositeGetAccessArray(pack, X, ctx->num_grids * ctx->batch_sz, NULL, globXArray)); 423 } 424 if (stepi > rectx->plotStep && rectx->plotting) { 425 rectx->plotting = PETSC_FALSE; /* was doing diagnostics, now done */ 426 rectx->plotIdx++; 427 } 428 /* view */ 429 if (time / rectx->plotDt >= (PetscReal)rectx->plotIdx || reason) { 430 if ((reason || stepi == 0 || rectx->plotIdx % rectx->print_period == 0) && ctx->verbose > 1) { 431 /* print norms */ 432 PetscCall(DMPlexLandauPrintNorms(X, stepi)); 433 } 434 if (!rectx->plotting) { /* first step of possible backtracks */ 435 rectx->plotting = PETSC_TRUE; 436 /* diagnostics + change E field with Sptizer (not just a monitor) */ 437 PetscCall(rectx->test(ts, X, stepi, time, reason ? PETSC_TRUE : PETSC_FALSE, ctx, rectx)); 438 } else { 439 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "\t\t ERROR SKIP test spit ------\n")); 440 rectx->plotting = PETSC_TRUE; 441 } 442 if (rectx->grid_view_idx != -1) { 443 PetscCall(PetscObjectSetName((PetscObject)globXArray[LAND_PACK_IDX(ctx->batch_view_idx, rectx->grid_view_idx)], rectx->grid_view_idx == 0 ? "ue" : "ui")); 444 /* view, overwrite step when back tracked */ 445 PetscCall(DMSetOutputSequenceNumber(ctx->plex[rectx->grid_view_idx], rectx->plotIdx, time * ctx->t_0)); 446 PetscCall(VecViewFromOptions(globXArray[LAND_PACK_IDX(ctx->batch_view_idx, rectx->grid_view_idx)], NULL, "-ex2_vec_view")); 447 } 448 rectx->plotStep = stepi; 449 } else { 450 if (rectx->plotting) PetscCall(PetscPrintf(PETSC_COMM_WORLD, " ERROR rectx->plotting=%s step %" PetscInt_FMT "\n", PetscBools[rectx->plotting], stepi)); 451 /* diagnostics + change E field with Sptizer (not just a monitor) - can we lag this? */ 452 PetscCall(rectx->test(ts, X, stepi, time, reason ? PETSC_TRUE : PETSC_FALSE, ctx, rectx)); 453 } 454 /* parallel check that only works of all batches are identical */ 455 if (reason && ctx->verbose > 3 && ctx->batch_sz > 1) { 456 PetscReal val, rval; 457 PetscMPIInt rank; 458 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 459 for (PetscInt grid = 0; grid < ctx->num_grids; grid++) { 460 PetscInt nerrors = 0; 461 for (PetscInt i = 0; i < ctx->batch_sz; i++) { 462 PetscCall(VecNorm(globXArray[LAND_PACK_IDX(i, grid)], NORM_2, &val)); 463 if (i == 0) rval = val; 464 else if ((val = PetscAbs(val - rval) / rval) > 1000 * PETSC_MACHINE_EPSILON) { 465 PetscCall(PetscPrintf(PETSC_COMM_SELF, " [%d] Warning %" PetscInt_FMT ".%" PetscInt_FMT ") diff = %2.15e\n", rank, grid, i, (double)val)); 466 nerrors++; 467 } 468 } 469 if (nerrors) { 470 PetscCall(PetscPrintf(PETSC_COMM_SELF, " ***** [%d] ERROR max %" PetscInt_FMT " errors\n", rank, nerrors)); 471 } else { 472 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "[%d] %" PetscInt_FMT ") batch consistency check OK\n", rank, grid)); 473 } 474 } 475 } 476 rectx->idx = 0; 477 if (rectx->grid_view_idx != -1 || (reason && ctx->verbose > 3)) PetscCall(DMCompositeRestoreAccessArray(pack, X, ctx->num_grids * ctx->batch_sz, NULL, globXArray)); 478 PetscFunctionReturn(PETSC_SUCCESS); 479 } 480 481 static PetscErrorCode PreStep(TS ts) 482 { 483 LandauCtx *ctx; 484 REctx *rectx; 485 DM dm; 486 PetscInt stepi; 487 PetscReal time; 488 Vec X; 489 490 PetscFunctionBeginUser; 491 /* not used */ 492 PetscCall(TSGetDM(ts, &dm)); 493 PetscCall(TSGetTime(ts, &time)); 494 PetscCall(TSGetSolution(ts, &X)); 495 PetscCall(DMGetApplicationContext(dm, &ctx)); 496 rectx = (REctx *)ctx->data; 497 PetscCall(TSGetStepNumber(ts, &stepi)); 498 /* update E */ 499 PetscCall(rectx->E(X, NULL, stepi, time, ctx, &ctx->Ez)); 500 PetscFunctionReturn(PETSC_SUCCESS); 501 } 502 503 /* model for source of non-ionized impurities, profile provided by model, in du/dt form in normalized units (tricky because n_0 is normalized with electrons) */ 504 static PetscErrorCode stepSrc(PetscReal time, PetscReal *rho, LandauCtx *ctx) 505 { 506 REctx *rectx = (REctx *)ctx->data; 507 508 PetscFunctionBeginUser; 509 if (time >= rectx->pulse_start) *rho = rectx->pulse_rate; 510 else *rho = 0.; 511 PetscFunctionReturn(PETSC_SUCCESS); 512 } 513 static PetscErrorCode zeroSrc(PetscReal time, PetscReal *rho, LandauCtx *ctx) 514 { 515 PetscFunctionBeginUser; 516 *rho = 0.; 517 PetscFunctionReturn(PETSC_SUCCESS); 518 } 519 520 static PetscErrorCode pulseSrc(PetscReal time, PetscReal *rho, LandauCtx *ctx) 521 { 522 REctx *rectx = (REctx *)ctx->data; 523 524 PetscFunctionBeginUser; 525 PetscCheck(rectx->pulse_start != PETSC_MAX_REAL, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "'-ex2_pulse_start_time X' must be used with '-ex2_impurity_source_type pulse'"); 526 if (time < rectx->pulse_start || time > rectx->pulse_start + 3 * rectx->pulse_width) *rho = 0; 527 else { 528 double x = PetscSinReal((time - rectx->pulse_start) / (3 * rectx->pulse_width) * 2 * PETSC_PI - PETSC_PI / 2) + 1; /* 0:2, integrates to 1.0 */ 529 *rho = rectx->pulse_rate * x / (3 * rectx->pulse_width); 530 if (!rectx->use_spitzer_eta) rectx->use_spitzer_eta = PETSC_TRUE; /* use it next time */ 531 } 532 PetscFunctionReturn(PETSC_SUCCESS); 533 } 534 535 static PetscErrorCode ProcessREOptions(REctx *rectx, const LandauCtx *ctx, DM dm, const char prefix[]) 536 { 537 PetscFunctionList plist = NULL, testlist = NULL, elist = NULL; 538 char pname[256], testname[256], ename[256]; 539 DM dm_dummy; 540 PetscBool Connor_E = PETSC_FALSE; 541 542 PetscFunctionBeginUser; 543 PetscCall(DMCreate(PETSC_COMM_WORLD, &dm_dummy)); 544 rectx->Ne_ion = 1; /* number of electrons given up by impurity ion */ 545 rectx->T_cold = .005; /* kev */ 546 rectx->ion_potential = 15; /* ev */ 547 rectx->L = 2; 548 rectx->X_0 = NULL; 549 rectx->imp_idx = ctx->num_species - 1; /* default ionized impurity as last one */ 550 rectx->pulse_start = PETSC_MAX_REAL; 551 rectx->pulse_width = 1; 552 rectx->plotStep = PETSC_INT_MAX; 553 rectx->pulse_rate = 1.e-1; 554 rectx->current_rate = 0; 555 rectx->plotIdx = 0; 556 rectx->j = 0; 557 rectx->plotDt = 1.0; 558 rectx->plotting = PETSC_FALSE; 559 rectx->use_spitzer_eta = PETSC_FALSE; 560 rectx->idx = 0; 561 rectx->print_period = 10; 562 rectx->grid_view_idx = -1; // do not get if not needed 563 /* Register the available impurity sources */ 564 PetscCall(PetscFunctionListAdd(&plist, "step", &stepSrc)); 565 PetscCall(PetscFunctionListAdd(&plist, "none", &zeroSrc)); 566 PetscCall(PetscFunctionListAdd(&plist, "pulse", &pulseSrc)); 567 PetscCall(PetscStrncpy(pname, "none", sizeof(pname))); 568 PetscCall(PetscFunctionListAdd(&testlist, "none", &testNone)); 569 PetscCall(PetscFunctionListAdd(&testlist, "spitzer", &testSpitzer)); 570 PetscCall(PetscFunctionListAdd(&testlist, "stable", &testStable)); 571 PetscCall(PetscStrncpy(testname, "none", sizeof(testname))); 572 PetscCall(PetscFunctionListAdd(&elist, "none", &ENone)); 573 PetscCall(PetscFunctionListAdd(&elist, "induction", &EInduction)); 574 PetscCall(PetscFunctionListAdd(&elist, "constant", &EConstant)); 575 PetscCall(PetscStrncpy(ename, "constant", sizeof(ename))); 576 577 PetscOptionsBegin(PETSC_COMM_SELF, prefix, "Options for Runaway/seed electron model", "none"); 578 PetscCall(PetscOptionsReal("-ex2_plot_dt", "Plotting interval", "ex2.c", rectx->plotDt, &rectx->plotDt, NULL)); 579 if (rectx->plotDt < 0) rectx->plotDt = 1e30; 580 if (rectx->plotDt == 0) rectx->plotDt = 1e-30; 581 PetscCall(PetscOptionsInt("-ex2_print_period", "Plotting interval", "ex2.c", rectx->print_period, &rectx->print_period, NULL)); 582 PetscCall(PetscOptionsInt("-ex2_grid_view_idx", "grid_view_idx", "ex2.c", rectx->grid_view_idx, &rectx->grid_view_idx, NULL)); 583 PetscCheck(rectx->grid_view_idx < ctx->num_grids || rectx->grid_view_idx == -1, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "rectx->grid_view_idx (%" PetscInt_FMT ") >= ctx->num_grids (%" PetscInt_FMT ")", rectx->imp_idx, ctx->num_grids); 584 PetscCall(PetscOptionsFList("-ex2_impurity_source_type", "Name of impurity source to run", "", plist, pname, pname, sizeof(pname), NULL)); 585 PetscCall(PetscOptionsFList("-ex2_test_type", "Name of test to run", "", testlist, testname, testname, sizeof(testname), NULL)); 586 PetscCall(PetscOptionsInt("-ex2_impurity_index", "index of sink for impurities", "none", rectx->imp_idx, &rectx->imp_idx, NULL)); 587 PetscCheck((rectx->imp_idx < ctx->num_species && rectx->imp_idx >= 1) || ctx->num_species <= 1, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "index of sink for impurities ions is out of range (%" PetscInt_FMT "), must be > 0 && < NS", rectx->imp_idx); 588 PetscCall(PetscOptionsFList("-ex2_e_field_type", "Electric field type", "", elist, ename, ename, sizeof(ename), NULL)); 589 rectx->Ne_ion = -ctx->charges[rectx->imp_idx] / ctx->charges[0]; 590 PetscCall(PetscOptionsReal("-ex2_t_cold", "Temperature of cold electron and ions after ionization in keV", "none", rectx->T_cold, &rectx->T_cold, NULL)); 591 PetscCall(PetscOptionsReal("-ex2_pulse_start_time", "Time at which pulse happens for 'pulse' source", "none", rectx->pulse_start, &rectx->pulse_start, NULL)); 592 PetscCall(PetscOptionsReal("-ex2_pulse_width_time", "Width of pulse 'pulse' source", "none", rectx->pulse_width, &rectx->pulse_width, NULL)); 593 PetscCall(PetscOptionsReal("-ex2_pulse_rate", "Number density of pulse for 'pulse' source", "none", rectx->pulse_rate, &rectx->pulse_rate, NULL)); 594 rectx->T_cold *= 1.16e7; /* convert to Kelvin */ 595 PetscCall(PetscOptionsReal("-ex2_ion_potential", "Potential to ionize impurity (should be array) in ev", "none", rectx->ion_potential, &rectx->ion_potential, NULL)); 596 PetscCall(PetscOptionsReal("-ex2_inductance", "Inductance E field", "none", rectx->L, &rectx->L, NULL)); 597 PetscCall(PetscOptionsBool("-ex2_connor_e_field_units", "Scale Ex but Connor-Hastie E_c", "none", Connor_E, &Connor_E, NULL)); 598 PetscCall(PetscInfo(dm_dummy, "Num electrons from ions=%g, T_cold=%10.3e, ion potential=%10.3e, E_z=%10.3e v_0=%10.3e\n", (double)rectx->Ne_ion, (double)rectx->T_cold, (double)rectx->ion_potential, (double)ctx->Ez, (double)ctx->v_0)); 599 PetscOptionsEnd(); 600 /* get impurity source rate function */ 601 PetscCall(PetscFunctionListFind(plist, pname, &rectx->impuritySrcRate)); 602 PetscCheck(rectx->impuritySrcRate, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "No impurity source function found '%s'", pname); 603 PetscCall(PetscFunctionListFind(testlist, testname, &rectx->test)); 604 PetscCheck(rectx->test, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "No test found '%s'", testname); 605 PetscCall(PetscFunctionListFind(elist, ename, &rectx->E)); 606 PetscCheck(rectx->E, PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "No E field function found '%s'", ename); 607 PetscCall(PetscFunctionListDestroy(&plist)); 608 PetscCall(PetscFunctionListDestroy(&testlist)); 609 PetscCall(PetscFunctionListDestroy(&elist)); 610 611 /* convert E from Connor-Hastie E_c units to real if doing Spitzer E */ 612 if (Connor_E) { 613 PetscReal E = ctx->Ez, Tev = ctx->thermal_temps[0] * 8.621738e-5, n = ctx->n_0 * ctx->n[0]; 614 CalculateE(Tev, n, ctx->lambdas[0][1], ctx->epsilon0, &E); 615 ((LandauCtx *)ctx)->Ez *= E; 616 } 617 PetscCall(DMDestroy(&dm_dummy)); 618 PetscFunctionReturn(PETSC_SUCCESS); 619 } 620 621 int main(int argc, char **argv) 622 { 623 DM pack; 624 Vec X; 625 PetscInt dim = 2, nDMs; 626 TS ts; 627 Mat J; 628 PetscDS prob; 629 LandauCtx *ctx; 630 REctx *rectx; 631 PetscMPIInt rank; 632 PetscLogStage stage; 633 634 PetscFunctionBeginUser; 635 PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 636 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 637 if (rank) { /* turn off output stuff for duplicate runs */ 638 PetscCall(PetscOptionsClearValue(NULL, "-ex2_dm_view")); 639 PetscCall(PetscOptionsClearValue(NULL, "-ex2_vec_view")); 640 PetscCall(PetscOptionsClearValue(NULL, "-ex2_vec_view_init")); 641 PetscCall(PetscOptionsClearValue(NULL, "-ex2_dm_view_init")); 642 PetscCall(PetscOptionsClearValue(NULL, "-info")); /* this does not work */ 643 } 644 PetscCall(PetscOptionsGetInt(NULL, NULL, "-dim", &dim, NULL)); 645 /* Create a mesh */ 646 PetscCall(DMPlexLandauCreateVelocitySpace(PETSC_COMM_WORLD, dim, "", &X, &J, &pack)); 647 PetscCall(DMCompositeGetNumberDM(pack, &nDMs)); 648 PetscCall(PetscObjectSetName((PetscObject)J, "Jacobian")); 649 PetscCall(PetscObjectSetName((PetscObject)X, "f")); 650 PetscCall(DMGetApplicationContext(pack, &ctx)); 651 PetscCall(DMSetUp(pack)); 652 /* context */ 653 PetscCall(PetscNew(&rectx)); 654 ctx->data = rectx; 655 PetscCall(ProcessREOptions(rectx, ctx, pack, "")); 656 PetscCall(DMGetDS(pack, &prob)); 657 if (rectx->grid_view_idx != -1) { 658 Vec *XsubArray = NULL; 659 PetscCall(PetscMalloc(sizeof(*XsubArray) * nDMs, &XsubArray)); 660 PetscCall(DMCompositeGetAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 661 PetscCall(PetscObjectSetName((PetscObject)XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, rectx->grid_view_idx)], rectx->grid_view_idx == 0 ? "ue" : "ui")); 662 PetscCall(DMSetOutputSequenceNumber(ctx->plex[rectx->grid_view_idx], 0, 0.0)); 663 PetscCall(DMViewFromOptions(ctx->plex[rectx->grid_view_idx], NULL, "-ex2_dm_view")); 664 PetscCall(DMViewFromOptions(ctx->plex[rectx->grid_view_idx], NULL, "-ex2_dm_view_init")); 665 PetscCall(VecViewFromOptions(XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, rectx->grid_view_idx)], NULL, "-ex2_vec_view")); // initial condition (monitor plots after step) 666 PetscCall(VecViewFromOptions(XsubArray[LAND_PACK_IDX(ctx->batch_view_idx, rectx->grid_view_idx)], NULL, "-ex2_vec_view_init")); // initial condition (monitor plots after step) 667 PetscCall(DMCompositeRestoreAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 668 PetscCall(PetscFree(XsubArray)); 669 } 670 /* Create timestepping solver context */ 671 PetscCall(TSCreate(PETSC_COMM_SELF, &ts)); 672 PetscCall(TSSetDM(ts, pack)); 673 PetscCall(TSSetIFunction(ts, NULL, DMPlexLandauIFunction, NULL)); 674 PetscCall(TSSetIJacobian(ts, J, J, DMPlexLandauIJacobian, NULL)); 675 PetscCall(TSSetRHSFunction(ts, NULL, FormSource, NULL)); 676 PetscCall(TSSetFromOptions(ts)); 677 PetscCall(TSSetSolution(ts, X)); 678 PetscCall(TSSetApplicationContext(ts, ctx)); 679 PetscCall(TSMonitorSet(ts, Monitor, ctx, NULL)); 680 PetscCall(TSSetPreStep(ts, PreStep)); 681 rectx->Ez_initial = ctx->Ez; /* cache for induction calculation - applied E field */ 682 if (1) { /* warm up an test just DMPlexLandauIJacobian */ 683 Vec vec; 684 PetscInt nsteps; 685 PetscReal dt; 686 PetscCall(PetscLogStageRegister("Warmup", &stage)); 687 PetscCall(PetscLogStagePush(stage)); 688 PetscCall(VecDuplicate(X, &vec)); 689 PetscCall(VecCopy(X, vec)); 690 PetscCall(TSGetMaxSteps(ts, &nsteps)); 691 PetscCall(TSGetTimeStep(ts, &dt)); 692 PetscCall(TSSetMaxSteps(ts, 1)); 693 PetscCall(TSSolve(ts, X)); 694 PetscCall(TSSetMaxSteps(ts, nsteps)); 695 PetscCall(TSSetStepNumber(ts, 0)); 696 PetscCall(TSSetTime(ts, 0)); 697 PetscCall(TSSetTimeStep(ts, dt)); 698 rectx->plotIdx = 0; 699 rectx->plotting = PETSC_FALSE; 700 PetscCall(PetscLogStagePop()); 701 PetscCall(VecCopy(vec, X)); 702 PetscCall(VecDestroy(&vec)); 703 PetscCall(PetscObjectStateIncrease((PetscObject)ctx->J)); 704 } 705 /* go */ 706 PetscCall(PetscLogStageRegister("Solve", &stage)); 707 ctx->stage = 0; // lets not use this stage 708 PetscCall(PetscLogStagePush(stage)); 709 #if defined(PETSC_HAVE_CUDA_NVTX) 710 nvtxRangePushA("ex2-TSSolve-warm"); 711 #endif 712 PetscCall(TSSolve(ts, X)); 713 #if defined(PETSC_HAVE_CUDA_NVTX) 714 nvtxRangePop(); 715 #endif 716 PetscCall(PetscLogStagePop()); 717 /* clean up */ 718 PetscCall(DMPlexLandauDestroyVelocitySpace(&pack)); 719 PetscCall(TSDestroy(&ts)); 720 PetscCall(VecDestroy(&X)); 721 PetscCall(PetscFree(rectx)); 722 PetscCall(PetscFinalize()); 723 return 0; 724 } 725 726 /*TEST 727 728 testset: 729 requires: p4est !complex double defined(PETSC_USE_DMLANDAU_2D) 730 output_file: output/ex2_0.out 731 args: -dm_landau_num_species_grid 1,1 -dm_landau_Ez 0 -petscspace_degree 3 -petscspace_poly_tensor 1 -dm_landau_type p4est -dm_landau_ion_masses 2 \ 732 -dm_landau_ion_charges 1 -dm_landau_thermal_temps 5,5 -dm_landau_n 2,2 -dm_landau_n_0 5e19 -ts_monitor -snes_rtol 1.e-9 -snes_stol 1.e-14 -snes_monitor \ 733 -snes_converged_reason -snes_max_it 10 -ts_type arkimex -ts_arkimex_type 1bee -ts_max_snes_failures unlimited -ts_rtol 1e-3 -ts_time_step 1.e-2 -ts_max_time 1 -ts_adapt_clip .5,1.25 -ts_max_steps 2 -ts_adapt_scale_solve_failed 0.75 -ts_adapt_time_step_increase_delay 5 -dm_landau_amr_levels_max 2,2 -dm_landau_amr_re_levels 2 -dm_landau_re_radius 0 -ex2_impurity_source_type pulse -ex2_pulse_start_time 1e-1 -ex2_pulse_width_time 10 -ex2_pulse_rate 1e-2 -ex2_t_cold .05 -ex2_plot_dt 1e-1 -dm_refine 0 -dm_landau_gpu_assembly true -dm_landau_batch_size 2 -dm_landau_verbose 2 -dm_landau_domain_radius 5.,5. 734 test: 735 suffix: cpu 736 args: -dm_landau_device_type cpu -ksp_type bicg -pc_type jacobi 737 test: 738 suffix: kokkos 739 requires: kokkos_kernels !defined(PETSC_HAVE_CUDA_CLANG) 740 args: -dm_landau_device_type kokkos -dm_mat_type aijkokkos -dm_vec_type kokkos -ksp_type bicg -pc_type jacobi 741 test: 742 suffix: kokkos_batch 743 requires: kokkos_kernels 744 args: -dm_landau_device_type kokkos -dm_mat_type aijkokkos -dm_vec_type kokkos -ksp_type preonly -pc_type bjkokkos -pc_bjkokkos_ksp_type bicg -pc_bjkokkos_pc_type jacobi 745 test: 746 suffix: kokkos_batch_tfqmr 747 requires: kokkos_kernels !defined(PETSC_HAVE_CUDA_CLANG) 748 args: -dm_landau_device_type kokkos -dm_mat_type aijkokkos -dm_vec_type kokkos -ksp_type preonly -pc_type bjkokkos -pc_bjkokkos_ksp_type tfqmr -pc_bjkokkos_pc_type jacobi 749 750 test: 751 requires: !complex double defined(PETSC_USE_DMLANDAU_2D) !cuda 752 suffix: single 753 nsize: 1 754 args: -dm_refine 2 -dm_landau_num_species_grid 1 -dm_landau_thermal_temps 1 -dm_landau_electron_shift 1.25 -petscspace_degree 3 -snes_converged_reason -ts_type beuler -ts_time_step .1\ 755 -ex2_plot_dt .1 -ts_max_steps 1 -ex2_grid_view_idx 0 -ex2_dm_view -snes_rtol 1.e-13 -snes_stol 1.e-13 -dm_landau_verbose 2 -ex2_print_period 1 -ksp_type preonly -pc_type lu -dm_landau_device_type cpu -dm_landau_use_relativistic_corrections 756 757 testset: 758 requires: !complex double defined(PETSC_USE_DMLANDAU_2D) 759 nsize: 1 760 output_file: output/ex2_simplex.out 761 args: -dim 2 -dm_landau_num_species_grid 1,1 -petscspace_degree 2 -dm_landau_simplex -dm_landau_ion_masses 2 -dm_landau_ion_charges 1 -dm_landau_thermal_temps 2,1 -dm_landau_n 1,1 -snes_rtol 1e-15\ 762 -snes_stol 1e-15 -snes_monitor -ts_type beuler -snes_converged_reason -ts_exact_final_time stepover -ts_time_step .1 -ts_max_steps 1 -ts_max_snes_failures unlimited -ksp_type preonly\ 763 -pc_type lu -dm_landau_verbose 2 -ex2_grid_view_idx 0 -ex2_dm_view -dm_refine 1 -ksp_type bicg -pc_type jacobi 764 test: 765 suffix: simplex 766 args: -dm_landau_device_type cpu 767 test: 768 suffix: simplexkokkos 769 requires: kokkos_kernels !defined(PETSC_HAVE_CUDA_CLANG) !sycl 770 args: -dm_landau_device_type kokkos -dm_mat_type aijkokkos -dm_vec_type kokkos 771 772 test: 773 requires: double !defined(PETSC_USE_DMLANDAU_2D) 774 suffix: sphere_3d 775 nsize: 1 776 args: -dim 3 -dm_landau_thermal_temps 2 -ts_type beuler -ts_time_step .1 -ts_max_steps 1 -dm_landau_verbose 2 -ksp_type preonly -pc_type lu -dm_landau_device_type cpu -snes_rtol 1.e-14 -snes_stol 1.e-14 -snes_converged_reason \ 777 -dm_landau_sphere -ex2_grid_view_idx 0 -ex2_dm_view -dm_landau_domain_radius 6 -dm_landau_sphere_inner_radius_90degree_scale .35 -petscspace_degree 3 -dm_refine 0 # -ex2_dm_view hdf5:my.hdf5:hdf5_viz -ex2_vec_view hdf5:my.hdf5:hdf5_viz:append 778 779 TEST*/ 780