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 #include <nvToolsExt.h> 12 #endif 13 14 /* data for runaway electron model */ 15 typedef struct REctx_struct { 16 PetscErrorCode (*test)(TS, Vec, PetscInt, PetscReal, PetscBool, LandauCtx *, struct REctx_struct *); 17 PetscErrorCode (*impuritySrcRate)(PetscReal, PetscReal *, LandauCtx*); 18 PetscErrorCode (*E)(Vec, Vec, PetscInt, PetscReal, LandauCtx*, PetscReal *); 19 PetscReal T_cold; /* temperature of newly ionized electrons and impurity ions */ 20 PetscReal ion_potential; /* ionization potential of impurity */ 21 PetscReal Ne_ion; /* effective number of electrons shed in ioization of impurity */ 22 PetscReal Ez_initial; 23 PetscReal L; /* inductance */ 24 Vec X_0; 25 PetscInt imp_idx; /* index for impurity ionizing sink */ 26 PetscReal pulse_start; 27 PetscReal pulse_width; 28 PetscReal pulse_rate; 29 PetscReal current_rate; 30 PetscInt plotIdx; 31 PetscInt plotStep; 32 PetscInt idx; /* cache */ 33 PetscReal j; /* cache */ 34 PetscReal plotDt; 35 PetscBool plotting; 36 PetscBool use_spitzer_eta; 37 PetscInt print_period; 38 PetscInt grid_view_idx; 39 } REctx; 40 41 static const PetscReal kev_joul = 6.241506479963235e+15; /* 1/1000e */ 42 43 #define RE_CUT 3. 44 /* < v, u_re * v * q > */ 45 static void f0_j_re(PetscInt dim, PetscInt Nf, PetscInt NfAux, 46 const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], 47 const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], 48 PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 49 { 50 PetscReal n_e = PetscRealPart(u[0]); 51 if (dim==2) { 52 if (x[1] > RE_CUT || x[1] < -RE_CUT) { /* simply a cutoff for REs. v_|| > 3 v(T_e) */ 53 *f0 = n_e * 2.*PETSC_PI*x[0] * x[1] * constants[0]; /* n * r * v_|| * q */ 54 } else { 55 *f0 = 0; 56 } 57 } else { 58 if (x[2] > RE_CUT || x[2] < -RE_CUT) { /* simply a cutoff for REs. v_|| > 3 v(T_e) */ 59 *f0 = n_e * x[2] * constants[0]; 60 } else { 61 *f0 = 0; 62 } 63 } 64 } 65 66 /* sum < v, u*v*q > */ 67 static void f0_jz_sum(PetscInt dim, PetscInt Nf, PetscInt NfAux, 68 const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], 69 const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], 70 PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar q[], PetscScalar *f0) 71 { 72 PetscInt ii; 73 f0[0] = 0; 74 if (dim==2) { 75 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 */ 76 } else { 77 for (ii=0;ii<Nf;ii++) f0[0] += u[ii] * x[2] * q[ii]; /* n * v_|| * q * v_0 */ 78 } 79 } 80 81 /* < v, n_e > */ 82 static void f0_n(PetscInt dim, PetscInt Nf, PetscInt NfAux, 83 const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], 84 const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], 85 PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 86 { 87 PetscInt ii = (PetscInt)PetscRealPart(constants[0]); 88 if (dim==2) f0[0] = 2.*PETSC_PI*x[0]*u[ii]; 89 else { 90 f0[0] = u[ii]; 91 } 92 } 93 94 /* < v, n_e v_|| > */ 95 static void f0_vz(PetscInt dim, PetscInt Nf, PetscInt NfAux, 96 const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], 97 const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], 98 PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 99 { 100 PetscInt ii = (PetscInt)PetscRealPart(constants[0]); 101 if (dim==2) f0[0] = u[ii] * 2.*PETSC_PI*x[0] * x[1]; /* n r v_|| */ 102 else { 103 f0[0] = u[ii] * x[2]; /* n v_|| */ 104 } 105 } 106 107 /* < v, n_e (v-shift) > */ 108 static void f0_ve_shift(PetscInt dim, PetscInt Nf, PetscInt NfAux, 109 const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], 110 const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], 111 PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 112 { 113 PetscReal vz = numConstants>0 ? PetscRealPart(constants[0]) : 0; 114 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 */ 115 else { 116 *f0 = u[0] * PetscSqrtReal(x[0]*x[0] + x[1]*x[1] + (x[2]-vz)*(x[2]-vz)); /* n v */ 117 } 118 } 119 120 /* CalculateE - Calculate the electric field */ 121 /* T -- Electron temperature */ 122 /* n -- Electron density */ 123 /* lnLambda -- */ 124 /* eps0 -- */ 125 /* E -- output E, input \hat E */ 126 static PetscReal CalculateE(PetscReal Tev, PetscReal n, PetscReal lnLambda, PetscReal eps0, PetscReal *E) 127 { 128 PetscReal c,e,m; 129 130 PetscFunctionBegin; 131 c = 299792458.0; 132 e = 1.602176e-19; 133 m = 9.10938e-31; 134 if (1) { 135 double Ec, Ehat = *E, betath = PetscSqrtReal(2*Tev*e/(m*c*c)), j0 = Ehat * 7/(PetscSqrtReal(2)*2) * PetscPowReal(betath,3) * n * e * c; 136 Ec = n*lnLambda*PetscPowReal(e,3) / (4*PETSC_PI*PetscPowReal(eps0,2)*m*c*c); 137 *E = Ec; 138 PetscPrintf(PETSC_COMM_WORLD, "CalculateE j0=%g Ec = %g\n",j0,Ec); 139 } else { 140 PetscReal Ed, vth; 141 vth = PetscSqrtReal(8*Tev*e/(m*PETSC_PI)); 142 Ed = n*lnLambda*PetscPowReal(e,3) / (4*PETSC_PI*PetscPowReal(eps0,2)*m*vth*vth); 143 *E = Ed; 144 } 145 PetscFunctionReturn(0); 146 } 147 148 static PetscReal Spitzer(PetscReal m_e, PetscReal e, PetscReal Z, PetscReal epsilon0, PetscReal lnLam, PetscReal kTe_joules) 149 { 150 PetscReal Fz = (1+1.198*Z+0.222*Z*Z)/(1+2.966*Z+0.753*Z*Z), eta; 151 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); 152 return eta; 153 } 154 155 /* */ 156 static PetscErrorCode testNone(TS ts, Vec X, PetscInt stepi, PetscReal time, PetscBool islast, LandauCtx *ctx, REctx *rectx) 157 { 158 PetscFunctionBeginUser; 159 PetscFunctionReturn(0); 160 } 161 162 /* */ 163 static PetscErrorCode testSpitzer(TS ts, Vec X, PetscInt stepi, PetscReal time, PetscBool islast, LandauCtx *ctx, REctx *rectx) 164 { 165 PetscInt ii,nDMs; 166 PetscDS prob; 167 static PetscReal old_ratio = 1e10; 168 TSConvergedReason reason; 169 PetscReal J,J_re,spit_eta,Te_kev=0,E,ratio,Z,n_e,v,v2; 170 PetscScalar user[2] = {0.,ctx->charges[0]}, q[LANDAU_MAX_SPECIES],tt[LANDAU_MAX_SPECIES],vz; 171 PetscReal dt; 172 DM pack, plexe = ctx->plex[0], plexi = (ctx->num_grids==1) ? NULL : ctx->plex[1]; 173 Vec *XsubArray; 174 175 PetscFunctionBeginUser; 176 PetscCheck(ctx->num_species==2,PETSC_COMM_SELF, PETSC_ERR_PLIB, "ctx->num_species %" PetscInt_FMT " != 2",ctx->num_species); 177 PetscCall(VecGetDM(X, &pack)); 178 PetscCheck(pack,PETSC_COMM_SELF, PETSC_ERR_PLIB, "no DM"); 179 PetscCall(DMCompositeGetNumberDM(pack,&nDMs)); 180 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); 181 PetscCall(PetscMalloc(sizeof(*XsubArray)*nDMs, &XsubArray)); 182 PetscCall(DMCompositeGetAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 183 PetscCall(TSGetTimeStep(ts,&dt)); 184 /* get current for each grid */ 185 for (ii=0;ii<ctx->num_species;ii++) q[ii] = ctx->charges[ii]; 186 PetscCall(DMGetDS(plexe, &prob)); 187 PetscCall(PetscDSSetConstants(prob, 2, &q[0])); 188 PetscCall(PetscDSSetObjective(prob, 0, &f0_jz_sum)); 189 PetscCall(DMPlexComputeIntegralFEM(plexe,XsubArray[ LAND_PACK_IDX(ctx->batch_view_idx,0) ],tt,NULL)); 190 J = -ctx->n_0*ctx->v_0*PetscRealPart(tt[0]); 191 if (plexi) { // add first (only) ion 192 PetscCall(DMGetDS(plexi, &prob)); 193 PetscCall(PetscDSSetConstants(prob, 1, &q[1])); 194 PetscCall(PetscDSSetObjective(prob, 0, &f0_jz_sum)); 195 PetscCall(DMPlexComputeIntegralFEM(plexi,XsubArray[LAND_PACK_IDX(ctx->batch_view_idx,1)],tt,NULL)); 196 J += -ctx->n_0*ctx->v_0*PetscRealPart(tt[0]); 197 } 198 /* get N_e */ 199 PetscCall(DMGetDS(plexe, &prob)); 200 PetscCall(PetscDSSetConstants(prob, 1, user)); 201 PetscCall(PetscDSSetObjective(prob, 0, &f0_n)); 202 PetscCall(DMPlexComputeIntegralFEM(plexe,XsubArray[LAND_PACK_IDX(ctx->batch_view_idx,0)],tt,NULL)); 203 n_e = PetscRealPart(tt[0])*ctx->n_0; 204 /* Z */ 205 Z = -ctx->charges[1]/ctx->charges[0]; 206 /* remove drift */ 207 if (0) { 208 user[0] = 0; // electrons 209 PetscCall(DMGetDS(plexe, &prob)); 210 PetscCall(PetscDSSetConstants(prob, 1, user)); 211 PetscCall(PetscDSSetObjective(prob, 0, &f0_vz)); 212 PetscCall(DMPlexComputeIntegralFEM(plexe,XsubArray[LAND_PACK_IDX(ctx->batch_view_idx,0)],tt,NULL)); 213 vz = ctx->n_0*PetscRealPart(tt[0])/n_e; /* non-dimensional */ 214 } else vz = 0; 215 /* thermal velocity */ 216 PetscCall(DMGetDS(plexe, &prob)); 217 PetscCall(PetscDSSetConstants(prob, 1, &vz)); 218 PetscCall(PetscDSSetObjective(prob, 0, &f0_ve_shift)); 219 PetscCall(DMPlexComputeIntegralFEM(plexe,XsubArray[LAND_PACK_IDX(ctx->batch_view_idx,0)],tt,NULL)); 220 v = ctx->n_0*ctx->v_0*PetscRealPart(tt[0])/n_e; /* remove number density to get velocity */ 221 v2 = PetscSqr(v); /* use real space: m^2 / s^2 */ 222 Te_kev = (v2*ctx->masses[0]*PETSC_PI/8)*kev_joul; /* temperature in kev */ 223 spit_eta = Spitzer(ctx->masses[0],-ctx->charges[0],Z,ctx->epsilon0,ctx->lnLam,Te_kev/kev_joul); /* kev --> J (kT) */ 224 if (0) { 225 PetscCall(DMGetDS(plexe, &prob)); 226 PetscCall(PetscDSSetConstants(prob, 1, q)); 227 PetscCall(PetscDSSetObjective(prob, 0, &f0_j_re)); 228 PetscCall(DMPlexComputeIntegralFEM(plexe,XsubArray[LAND_PACK_IDX(ctx->batch_view_idx,0)],tt,NULL)); 229 } else tt[0] = 0; 230 J_re = -ctx->n_0*ctx->v_0*PetscRealPart(tt[0]); 231 PetscCall(DMCompositeRestoreAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 232 PetscCall(PetscFree(XsubArray)); 233 234 if (rectx->use_spitzer_eta) { 235 E = ctx->Ez = spit_eta*(rectx->j-J_re); 236 } else { 237 E = ctx->Ez; /* keep real E */ 238 rectx->j = J; /* cache */ 239 } 240 241 ratio = E/J/spit_eta; 242 if (stepi>10 && !rectx->use_spitzer_eta && ( 243 (old_ratio-ratio < 1.e-6))) { 244 rectx->pulse_start = time + 0.98*dt; 245 rectx->use_spitzer_eta = PETSC_TRUE; 246 } 247 PetscCall(TSGetConvergedReason(ts,&reason)); 248 PetscCall(TSGetConvergedReason(ts,&reason)); 249 if ((rectx->plotting) || stepi == 0 || reason || rectx->pulse_start == time + 0.98*dt) { 250 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,(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)); 251 PetscCheck(rectx->pulse_start != (time + 0.98*dt),PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"Spitzer complete ratio=%g",(double)ratio); 252 } 253 old_ratio = ratio; 254 PetscFunctionReturn(0); 255 } 256 257 static const double ppp = 2; 258 static void f0_0_diff_lp(PetscInt dim, PetscInt Nf, PetscInt NfAux, 259 const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], 260 const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], 261 PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 262 { 263 LandauCtx *ctx = (LandauCtx *)constants; 264 REctx *rectx = (REctx*)ctx->data; 265 PetscInt ii = rectx->idx, i; 266 const PetscReal kT_m = ctx->k*ctx->thermal_temps[ii]/ctx->masses[ii]; /* kT/m */ 267 const PetscReal n = ctx->n[ii]; 268 PetscReal diff, f_maxwell, v2 = 0, theta = 2*kT_m/(ctx->v_0*ctx->v_0); /* theta = 2kT/mc^2 */ 269 for (i = 0; i < dim; ++i) v2 += x[i]*x[i]; 270 f_maxwell = n*PetscPowReal(PETSC_PI*theta,-1.5)*(PetscExpReal(-v2/theta)); 271 diff = 2.*PETSC_PI*x[0]*(PetscRealPart(u[ii]) - f_maxwell); 272 f0[0] = PetscPowReal(diff,ppp); 273 } 274 static void f0_0_maxwellian_lp(PetscInt dim, PetscInt Nf, PetscInt NfAux, 275 const PetscInt uOff[], const PetscInt uOff_x[], const PetscScalar u[], const PetscScalar u_t[], const PetscScalar u_x[], 276 const PetscInt aOff[], const PetscInt aOff_x[], const PetscScalar a[], const PetscScalar a_t[], const PetscScalar a_x[], 277 PetscReal t, const PetscReal x[], PetscInt numConstants, const PetscScalar constants[], PetscScalar *f0) 278 { 279 LandauCtx *ctx = (LandauCtx *)constants; 280 REctx *rectx = (REctx*)ctx->data; 281 PetscInt ii = rectx->idx, i; 282 const PetscReal kT_m = ctx->k*ctx->thermal_temps[ii]/ctx->masses[ii]; /* kT/m */ 283 const PetscReal n = ctx->n[ii]; 284 PetscReal f_maxwell, v2 = 0, theta = 2*kT_m/(ctx->v_0*ctx->v_0); /* theta = 2kT/mc^2 */ 285 for (i = 0; i < dim; ++i) v2 += x[i]*x[i]; 286 f_maxwell = 2.*PETSC_PI*x[0] * n*PetscPowReal(PETSC_PI*theta,-1.5)*(PetscExpReal(-v2/theta)); 287 f0[0] = PetscPowReal(f_maxwell,ppp); 288 } 289 290 /* */ 291 static PetscErrorCode testStable(TS ts, Vec X, PetscInt stepi, PetscReal time, PetscBool islast, LandauCtx *ctx, REctx *rectx) 292 { 293 PetscDS prob; 294 Vec X2; 295 PetscReal ediff,idiff=0,lpm0,lpm1=1; 296 PetscScalar tt[LANDAU_MAX_SPECIES]; 297 DM dm, plex = ctx->plex[0]; 298 299 PetscFunctionBeginUser; 300 PetscCall(VecGetDM(X, &dm)); 301 PetscCall(DMGetDS(plex, &prob)); 302 PetscCall(VecDuplicate(X,&X2)); 303 PetscCall(VecCopy(X,X2)); 304 if (!rectx->X_0) { 305 PetscCall(VecDuplicate(X,&rectx->X_0)); 306 PetscCall(VecCopy(X,rectx->X_0)); 307 } 308 PetscCall(VecAXPY(X,-1.0,rectx->X_0)); 309 PetscCall(PetscDSSetConstants(prob, sizeof(LandauCtx)/sizeof(PetscScalar), (PetscScalar*)ctx)); 310 rectx->idx = 0; 311 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_diff_lp)); 312 PetscCall(DMPlexComputeIntegralFEM(plex,X2,tt,NULL)); 313 ediff = PetscPowReal(PetscRealPart(tt[0]),1./ppp); 314 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_maxwellian_lp)); 315 PetscCall(DMPlexComputeIntegralFEM(plex,X2,tt,NULL)); 316 lpm0 = PetscPowReal(PetscRealPart(tt[0]),1./ppp); 317 if (ctx->num_species>1) { 318 rectx->idx = 1; 319 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_diff_lp)); 320 PetscCall(DMPlexComputeIntegralFEM(plex,X2,tt,NULL)); 321 idiff = PetscPowReal(PetscRealPart(tt[0]),1./ppp); 322 PetscCall(PetscDSSetObjective(prob, 0, &f0_0_maxwellian_lp)); 323 PetscCall(DMPlexComputeIntegralFEM(plex,X2,tt,NULL)); 324 lpm1 = PetscPowReal(PetscRealPart(tt[0]),1./ppp); 325 } 326 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))); 327 /* view */ 328 PetscCall(VecCopy(X2,X)); 329 PetscCall(VecDestroy(&X2)); 330 if (islast) { 331 PetscCall(VecDestroy(&rectx->X_0)); 332 rectx->X_0 = NULL; 333 } 334 PetscFunctionReturn(0); 335 } 336 337 static PetscErrorCode EInduction(Vec X, Vec X_t, PetscInt step, PetscReal time, LandauCtx *ctx, PetscReal *a_E) 338 { 339 REctx *rectx = (REctx*)ctx->data; 340 PetscInt ii; 341 DM dm,plex; 342 PetscScalar tt[LANDAU_MAX_SPECIES], qv0[LANDAU_MAX_SPECIES]; 343 PetscReal dJ_dt; 344 PetscDS prob; 345 346 PetscFunctionBeginUser; 347 for (ii=0;ii<ctx->num_species;ii++) qv0[ii] = ctx->charges[ii]*ctx->v_0; 348 PetscCall(VecGetDM(X, &dm)); 349 PetscCall(DMGetDS(dm, &prob)); 350 PetscCall(DMConvert(dm, DMPLEX, &plex)); 351 /* get d current / dt */ 352 PetscCall(PetscDSSetConstants(prob, ctx->num_species, qv0)); 353 PetscCall(PetscDSSetObjective(prob, 0, &f0_jz_sum)); 354 PetscCheck(X_t,PETSC_COMM_SELF, PETSC_ERR_PLIB, "X_t"); 355 PetscCall(DMPlexComputeIntegralFEM(plex,X_t,tt,NULL)); 356 dJ_dt = -ctx->n_0*PetscRealPart(tt[0])/ctx->t_0; 357 /* E induction */ 358 *a_E = -rectx->L*dJ_dt + rectx->Ez_initial; 359 PetscCall(DMDestroy(&plex)); 360 PetscFunctionReturn(0); 361 } 362 363 static PetscErrorCode EConstant(Vec X, Vec X_t, PetscInt step, PetscReal time, LandauCtx *ctx, PetscReal *a_E) 364 { 365 PetscFunctionBeginUser; 366 *a_E = ctx->Ez; 367 PetscFunctionReturn(0); 368 } 369 370 static PetscErrorCode ENone(Vec X, Vec X_t, PetscInt step, PetscReal time, LandauCtx *ctx, PetscReal *a_E) 371 { 372 PetscFunctionBeginUser; 373 *a_E = 0; 374 PetscFunctionReturn(0); 375 } 376 377 /* ------------------------------------------------------------------- */ 378 /* 379 FormSource - Evaluates source terms F(t). 380 381 Input Parameters: 382 . ts - the TS context 383 . time - 384 . X_dummmy - input vector 385 . dummy - optional user-defined context, as set by SNESSetFunction() 386 387 Output Parameter: 388 . F - function vector 389 */ 390 static PetscErrorCode FormSource(TS ts, PetscReal ftime, Vec X_dummmy, Vec F, void *dummy) 391 { 392 PetscReal new_imp_rate; 393 LandauCtx *ctx; 394 DM pack; 395 REctx *rectx; 396 397 PetscFunctionBeginUser; 398 PetscCall(TSGetDM(ts,&pack)); 399 PetscCall(DMGetApplicationContext(pack, &ctx)); 400 rectx = (REctx*)ctx->data; 401 /* check for impurities */ 402 PetscCall(rectx->impuritySrcRate(ftime,&new_imp_rate,ctx)); 403 if (new_imp_rate != 0) { 404 if (new_imp_rate != rectx->current_rate) { 405 PetscInt ii; 406 PetscReal dne_dt,dni_dt,tilda_ns[LANDAU_MAX_SPECIES],temps[LANDAU_MAX_SPECIES]; 407 Vec globFarray[LANDAU_MAX_GRIDS*LANDAU_MAX_BATCH_SZ]; 408 rectx->current_rate = new_imp_rate; 409 for (ii=1;ii<LANDAU_MAX_SPECIES;ii++) tilda_ns[ii] = 0; 410 for (ii=1;ii<LANDAU_MAX_SPECIES;ii++) temps[ii] = 1; 411 dni_dt = new_imp_rate /* *ctx->t_0 */; /* fully ionized immediately, no normalize, stay in non-dim */ 412 dne_dt = new_imp_rate*rectx->Ne_ion /* *ctx->t_0 */; 413 tilda_ns[0] = dne_dt; tilda_ns[rectx->imp_idx] = dni_dt; 414 temps[0] = rectx->T_cold; temps[rectx->imp_idx] = rectx->T_cold; 415 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)); 416 PetscCall(DMCompositeGetAccessArray(pack, F, ctx->num_grids*ctx->batch_sz, NULL, globFarray)); 417 for (PetscInt grid=0 ; grid<ctx->num_grids ; grid++) { 418 /* add it */ 419 PetscCall(DMPlexLandauAddMaxwellians(ctx->plex[grid],globFarray[ LAND_PACK_IDX(0,grid) ],ftime,temps,tilda_ns,grid,0,1,ctx)); 420 } 421 // Does DMCompositeRestoreAccessArray copy the data back? (no) 422 PetscCall(DMCompositeRestoreAccessArray(pack, F, ctx->num_grids*ctx->batch_sz, NULL, globFarray)); 423 } 424 } else { 425 PetscCall(VecZeroEntries(F)); 426 rectx->current_rate = 0; 427 } 428 PetscFunctionReturn(0); 429 } 430 431 PetscErrorCode Monitor(TS ts, PetscInt stepi, PetscReal time, Vec X, void *actx) 432 { 433 LandauCtx *ctx = (LandauCtx*) actx; /* user-defined application context */ 434 REctx *rectx = (REctx*)ctx->data; 435 DM pack=NULL; 436 Vec globXArray[LANDAU_MAX_GRIDS*LANDAU_MAX_BATCH_SZ]; 437 TSConvergedReason reason; 438 439 PetscFunctionBeginUser; 440 PetscCall(TSGetConvergedReason(ts,&reason)); 441 if (rectx->grid_view_idx != -1 || (reason && ctx->verbose > 3)) { 442 PetscCall(VecGetDM(X, &pack)); 443 PetscCall(DMCompositeGetAccessArray(pack, X, ctx->num_grids*ctx->batch_sz, NULL, globXArray)); 444 } 445 if (stepi > rectx->plotStep && rectx->plotting) { 446 rectx->plotting = PETSC_FALSE; /* was doing diagnostics, now done */ 447 rectx->plotIdx++; 448 } 449 /* view */ 450 if (time/rectx->plotDt >= (PetscReal)rectx->plotIdx || reason) { 451 if ((reason || stepi==0 || rectx->plotIdx%rectx->print_period==0) && ctx->verbose > 1) { 452 /* print norms */ 453 PetscCall(DMPlexLandauPrintNorms(X, stepi)); 454 } 455 if (!rectx->plotting) { /* first step of possible backtracks */ 456 rectx->plotting = PETSC_TRUE; 457 /* diagnostics + change E field with Sptizer (not just a monitor) */ 458 PetscCall(rectx->test(ts,X,stepi,time,reason ? PETSC_TRUE : PETSC_FALSE, ctx, rectx)); 459 } else { 460 PetscPrintf(PETSC_COMM_WORLD, "\t\t ERROR SKIP test spit ------\n"); 461 rectx->plotting = PETSC_TRUE; 462 } 463 if (rectx->grid_view_idx != -1) { 464 PetscCall(PetscObjectSetName((PetscObject) globXArray[ LAND_PACK_IDX(ctx->batch_view_idx,rectx->grid_view_idx) ], rectx->grid_view_idx==0 ? "ue" : "ui")); 465 /* view, overwrite step when back tracked */ 466 PetscCall(DMSetOutputSequenceNumber(pack, rectx->plotIdx, time*ctx->t_0)); 467 PetscCall(VecViewFromOptions(globXArray[ LAND_PACK_IDX(ctx->batch_view_idx, rectx->grid_view_idx) ],NULL,"-ex2_vec_view")); 468 } 469 rectx->plotStep = stepi; 470 } else { 471 if (rectx->plotting) PetscPrintf(PETSC_COMM_WORLD," ERROR rectx->plotting=%s step %" PetscInt_FMT "\n",PetscBools[rectx->plotting],stepi); 472 /* diagnostics + change E field with Sptizer (not just a monitor) - can we lag this? */ 473 PetscCall(rectx->test(ts,X,stepi,time,reason ? PETSC_TRUE : PETSC_FALSE, ctx, rectx)); 474 } 475 /* parallel check that only works of all batches are identical */ 476 if (reason && ctx->verbose > 3) { 477 PetscReal val,rval; 478 PetscMPIInt rank; 479 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 480 for (PetscInt grid=0;grid<ctx->num_grids;grid++) { 481 PetscInt nerrors=0; 482 for (PetscInt i=0; i<ctx->batch_sz;i++) { 483 PetscCall(VecNorm(globXArray[ LAND_PACK_IDX(i,grid) ],NORM_2,&val)); 484 if (i==0) rval = val; 485 else if ((val=PetscAbs(val-rval)/rval) > 1000*PETSC_MACHINE_EPSILON) { 486 PetscCall(PetscPrintf(PETSC_COMM_SELF, " [%d] Warning %" PetscInt_FMT ".%" PetscInt_FMT ") diff = %2.15e\n",rank,grid,i,(double)val)); 487 nerrors++; 488 } 489 } 490 if (nerrors) { 491 PetscCall(PetscPrintf(PETSC_COMM_SELF, " ***** [%d] ERROR max %" PetscInt_FMT " errors\n",rank,nerrors)); 492 } else { 493 PetscCall(PetscPrintf(PETSC_COMM_WORLD, "[%d] %" PetscInt_FMT ") batch consistency check OK\n",rank,grid)); 494 } 495 } 496 } 497 rectx->idx = 0; 498 if (rectx->grid_view_idx != -1 || (reason && ctx->verbose > 3)) { 499 PetscCall(DMCompositeRestoreAccessArray(pack, X, ctx->num_grids*ctx->batch_sz, NULL, globXArray)); 500 } 501 PetscFunctionReturn(0); 502 } 503 504 PetscErrorCode PreStep(TS ts) 505 { 506 LandauCtx *ctx; 507 REctx *rectx; 508 DM dm; 509 PetscInt stepi; 510 PetscReal time; 511 Vec X; 512 513 PetscFunctionBeginUser; 514 /* not used */ 515 PetscCall(TSGetDM(ts,&dm)); 516 PetscCall(TSGetTime(ts,&time)); 517 PetscCall(TSGetSolution(ts,&X)); 518 PetscCall(DMGetApplicationContext(dm, &ctx)); 519 rectx = (REctx*)ctx->data; 520 PetscCall(TSGetStepNumber(ts, &stepi)); 521 /* update E */ 522 PetscCall(rectx->E(X, NULL, stepi, time, ctx, &ctx->Ez)); 523 PetscFunctionReturn(0); 524 } 525 526 /* 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) */ 527 static PetscErrorCode stepSrc(PetscReal time, PetscReal *rho, LandauCtx *ctx) 528 { 529 REctx *rectx = (REctx*)ctx->data; 530 531 PetscFunctionBeginUser; 532 if (time >= rectx->pulse_start) *rho = rectx->pulse_rate; 533 else *rho = 0.; 534 PetscFunctionReturn(0); 535 } 536 static PetscErrorCode zeroSrc(PetscReal time, PetscReal *rho, LandauCtx *ctx) 537 { 538 PetscFunctionBeginUser; 539 *rho = 0.; 540 PetscFunctionReturn(0); 541 } 542 static PetscErrorCode pulseSrc(PetscReal time, PetscReal *rho, LandauCtx *ctx) 543 { 544 REctx *rectx = (REctx*)ctx->data; 545 546 PetscFunctionBeginUser; 547 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'"); 548 if (time < rectx->pulse_start || time > rectx->pulse_start + 3*rectx->pulse_width) *rho = 0; 549 else { 550 double x = PetscSinReal((time-rectx->pulse_start)/(3*rectx->pulse_width)*2*PETSC_PI - PETSC_PI/2) + 1; /* 0:2, integrates to 1.0 */ 551 *rho = rectx->pulse_rate * x / (3*rectx->pulse_width); 552 if (!rectx->use_spitzer_eta) rectx->use_spitzer_eta = PETSC_TRUE; /* use it next time */ 553 } 554 PetscFunctionReturn(0); 555 } 556 557 #undef __FUNCT__ 558 #define __FUNCT__ "ProcessREOptions" 559 static PetscErrorCode ProcessREOptions(REctx *rectx, const LandauCtx *ctx, DM dm, const char prefix[]) 560 { 561 PetscFunctionList plist = NULL, testlist = NULL, elist = NULL; 562 char pname[256],testname[256],ename[256]; 563 DM dm_dummy; 564 PetscBool Connor_E = PETSC_FALSE; 565 566 PetscFunctionBeginUser; 567 PetscCall(DMCreate(PETSC_COMM_WORLD,&dm_dummy)); 568 rectx->Ne_ion = 1; /* number of electrons given up by impurity ion */ 569 rectx->T_cold = .005; /* kev */ 570 rectx->ion_potential = 15; /* ev */ 571 rectx->L = 2; 572 rectx->X_0 = NULL; 573 rectx->imp_idx = ctx->num_species - 1; /* default ionized impurity as last one */ 574 rectx->pulse_start = PETSC_MAX_REAL; 575 rectx->pulse_width = 1; 576 rectx->plotStep = PETSC_MAX_INT; 577 rectx->pulse_rate = 1.e-1; 578 rectx->current_rate = 0; 579 rectx->plotIdx = 0; 580 rectx->j = 0; 581 rectx->plotDt = 1.0; 582 rectx->plotting = PETSC_FALSE; 583 rectx->use_spitzer_eta = PETSC_FALSE; 584 rectx->idx = 0; 585 rectx->print_period = 10; 586 rectx->grid_view_idx = -1; // do not get if not needed 587 /* Register the available impurity sources */ 588 PetscCall(PetscFunctionListAdd(&plist,"step",&stepSrc)); 589 PetscCall(PetscFunctionListAdd(&plist,"none",&zeroSrc)); 590 PetscCall(PetscFunctionListAdd(&plist,"pulse",&pulseSrc)); 591 PetscCall(PetscStrcpy(pname,"none")); 592 PetscCall(PetscFunctionListAdd(&testlist,"none",&testNone)); 593 PetscCall(PetscFunctionListAdd(&testlist,"spitzer",&testSpitzer)); 594 PetscCall(PetscFunctionListAdd(&testlist,"stable",&testStable)); 595 PetscCall(PetscStrcpy(testname,"none")); 596 PetscCall(PetscFunctionListAdd(&elist,"none",&ENone)); 597 PetscCall(PetscFunctionListAdd(&elist,"induction",&EInduction)); 598 PetscCall(PetscFunctionListAdd(&elist,"constant",&EConstant)); 599 PetscCall(PetscStrcpy(ename,"constant")); 600 601 PetscOptionsBegin(PETSC_COMM_SELF, prefix, "Options for Runaway/seed electron model", "none"); 602 PetscCall(PetscOptionsReal("-ex2_plot_dt", "Plotting interval", "ex2.c", rectx->plotDt, &rectx->plotDt, NULL)); 603 if (rectx->plotDt < 0) rectx->plotDt = 1e30; 604 if (rectx->plotDt == 0) rectx->plotDt = 1e-30; 605 PetscCall(PetscOptionsInt("-ex2_print_period", "Plotting interval", "ex2.c", rectx->print_period, &rectx->print_period, NULL)); 606 PetscCall(PetscOptionsInt("-ex2_grid_view_idx", "grid_view_idx", "ex2.c", rectx->grid_view_idx, &rectx->grid_view_idx, NULL)); 607 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); 608 PetscCall(PetscOptionsFList("-ex2_impurity_source_type","Name of impurity source to run","",plist,pname,pname,sizeof(pname),NULL)); 609 PetscCall(PetscOptionsFList("-ex2_test_type","Name of test to run","",testlist,testname,testname,sizeof(testname),NULL)); 610 PetscCall(PetscOptionsInt("-ex2_impurity_index", "index of sink for impurities", "none", rectx->imp_idx, &rectx->imp_idx, NULL)); 611 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); 612 PetscCall(PetscOptionsFList("-ex2_e_field_type","Electric field type","",elist,ename,ename,sizeof(ename),NULL)); 613 rectx->Ne_ion = -ctx->charges[rectx->imp_idx]/ctx->charges[0]; 614 PetscCall(PetscOptionsReal("-ex2_t_cold","Temperature of cold electron and ions after ionization in keV","none",rectx->T_cold,&rectx->T_cold, NULL)); 615 PetscCall(PetscOptionsReal("-ex2_pulse_start_time","Time at which pulse happens for 'pulse' source","none",rectx->pulse_start,&rectx->pulse_start, NULL)); 616 PetscCall(PetscOptionsReal("-ex2_pulse_width_time","Width of pulse 'pulse' source","none",rectx->pulse_width,&rectx->pulse_width, NULL)); 617 PetscCall(PetscOptionsReal("-ex2_pulse_rate","Number density of pulse for 'pulse' source","none",rectx->pulse_rate,&rectx->pulse_rate, NULL)); 618 rectx->T_cold *= 1.16e7; /* convert to Kelvin */ 619 PetscCall(PetscOptionsReal("-ex2_ion_potential","Potential to ionize impurity (should be array) in ev","none",rectx->ion_potential,&rectx->ion_potential, NULL)); 620 PetscCall(PetscOptionsReal("-ex2_inductance","Inductance E feild","none",rectx->L,&rectx->L, NULL)); 621 PetscCall(PetscOptionsBool("-ex2_connor_e_field_units","Scale Ex but Connor-Hastie E_c","none",Connor_E,&Connor_E, NULL)); 622 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)); 623 PetscOptionsEnd(); 624 /* get impurity source rate function */ 625 PetscCall(PetscFunctionListFind(plist,pname,&rectx->impuritySrcRate)); 626 PetscCheck(rectx->impuritySrcRate,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"No impurity source function found '%s'",pname); 627 PetscCall(PetscFunctionListFind(testlist,testname,&rectx->test)); 628 PetscCheck(rectx->test,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"No test found '%s'",testname); 629 PetscCall(PetscFunctionListFind(elist,ename,&rectx->E)); 630 PetscCheck(rectx->E,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"No E field function found '%s'",ename); 631 PetscCall(PetscFunctionListDestroy(&plist)); 632 PetscCall(PetscFunctionListDestroy(&testlist)); 633 PetscCall(PetscFunctionListDestroy(&elist)); 634 635 /* convert E from Connor-Hastie E_c units to real if doing Spitzer E */ 636 if (Connor_E) { 637 PetscReal E = ctx->Ez, Tev = ctx->thermal_temps[0]*8.621738e-5, n = ctx->n_0*ctx->n[0]; 638 CalculateE(Tev, n, ctx->lnLam, ctx->epsilon0, &E); 639 ((LandauCtx*)ctx)->Ez *= E; 640 } 641 PetscCall(DMDestroy(&dm_dummy)); 642 PetscFunctionReturn(0); 643 } 644 645 int main(int argc, char **argv) 646 { 647 DM pack; 648 Vec X; 649 PetscInt dim = 2, nDMs; 650 TS ts; 651 Mat J; 652 PetscDS prob; 653 LandauCtx *ctx; 654 REctx *rectx; 655 #if defined PETSC_USE_LOG 656 PetscLogStage stage; 657 #endif 658 PetscMPIInt rank; 659 #if defined(PETSC_HAVE_THREADSAFETY) 660 double starttime, endtime; 661 #endif 662 PetscCall(PetscInitialize(&argc, &argv, NULL,help)); 663 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank)); 664 if (rank) { /* turn off output stuff for duplicate runs */ 665 PetscCall(PetscOptionsClearValue(NULL,"-ex2_dm_view")); 666 PetscCall(PetscOptionsClearValue(NULL,"-ex2_vec_view")); 667 PetscCall(PetscOptionsClearValue(NULL,"-ex2_vec_view_init")); 668 PetscCall(PetscOptionsClearValue(NULL,"-ex2_dm_view_init")); 669 PetscCall(PetscOptionsClearValue(NULL,"-info")); /* this does not work */ 670 } 671 PetscCall(PetscOptionsGetInt(NULL,NULL, "-dim", &dim, NULL)); 672 /* Create a mesh */ 673 PetscCall(DMPlexLandauCreateVelocitySpace(PETSC_COMM_WORLD, dim, "", &X, &J, &pack)); 674 PetscCall(DMCompositeGetNumberDM(pack,&nDMs)); 675 PetscCall(PetscObjectSetName((PetscObject)J, "Jacobian")); 676 PetscCall(PetscObjectSetName((PetscObject)X, "f")); 677 PetscCall(DMGetApplicationContext(pack, &ctx)); 678 PetscCall(DMSetUp(pack)); 679 /* context */ 680 PetscCall(PetscNew(&rectx)); 681 ctx->data = rectx; 682 PetscCall(ProcessREOptions(rectx,ctx,pack,"")); 683 PetscCall(DMGetDS(pack, &prob)); 684 if (rectx->grid_view_idx != -1) { 685 Vec *XsubArray=NULL; 686 PetscCall(PetscMalloc(sizeof(*XsubArray)*nDMs, &XsubArray)); 687 PetscCall(DMCompositeGetAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 688 PetscCall(PetscObjectSetName((PetscObject) XsubArray[ LAND_PACK_IDX(ctx->batch_view_idx, rectx->grid_view_idx) ], rectx->grid_view_idx==0 ? "ue" : "ui")); 689 PetscCall(DMViewFromOptions(ctx->plex[rectx->grid_view_idx],NULL,"-ex2_dm_view")); 690 PetscCall(DMViewFromOptions(ctx->plex[rectx->grid_view_idx], NULL,"-ex2_dm_view_init")); 691 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) 692 PetscCall(DMCompositeRestoreAccessArray(pack, X, nDMs, NULL, XsubArray)); // read only 693 PetscCall(PetscFree(XsubArray)); 694 } 695 PetscCall(DMSetOutputSequenceNumber(pack, 0, 0.0)); 696 /* Create timestepping solver context */ 697 PetscCall(TSCreate(PETSC_COMM_SELF,&ts)); 698 PetscCall(TSSetDM(ts,pack)); 699 PetscCall(TSSetIFunction(ts,NULL,DMPlexLandauIFunction,NULL)); 700 PetscCall(TSSetIJacobian(ts,J,J,DMPlexLandauIJacobian,NULL)); 701 PetscCall(TSSetRHSFunction(ts,NULL,FormSource,NULL)); 702 PetscCall(TSSetFromOptions(ts)); 703 PetscCall(TSSetSolution(ts,X)); 704 PetscCall(TSSetApplicationContext(ts, ctx)); 705 PetscCall(TSMonitorSet(ts,Monitor,ctx,NULL)); 706 PetscCall(TSSetPreStep(ts,PreStep)); 707 rectx->Ez_initial = ctx->Ez; /* cache for induction caclulation - applied E field */ 708 if (1) { /* warm up an test just DMPlexLandauIJacobian */ 709 Vec vec; 710 PetscInt nsteps; 711 PetscReal dt; 712 PetscCall(PetscLogStageRegister("Warmup", &stage)); 713 PetscCall(PetscLogStagePush(stage)); 714 PetscCall(VecDuplicate(X,&vec)); 715 PetscCall(VecCopy(X,vec)); 716 PetscCall(TSGetMaxSteps(ts,&nsteps)); 717 PetscCall(TSGetTimeStep(ts,&dt)); 718 PetscCall(TSSetMaxSteps(ts,1)); 719 PetscCall(TSSolve(ts,X)); 720 PetscCall(TSSetMaxSteps(ts,nsteps)); 721 PetscCall(TSSetStepNumber(ts,0)); 722 PetscCall(TSSetTime(ts,0)); 723 PetscCall(TSSetTimeStep(ts,dt)); 724 rectx->plotIdx = 0; 725 rectx->plotting = PETSC_FALSE; 726 PetscCall(PetscLogStagePop()); 727 PetscCall(VecCopy(vec,X)); 728 PetscCall(VecDestroy(&vec)); 729 PetscCall(PetscObjectStateIncrease((PetscObject)ctx->J)); 730 } 731 /* go */ 732 PetscCall(PetscLogStageRegister("Solve", &stage)); 733 ctx->stage = 0; // lets not use this stage 734 #if defined(PETSC_HAVE_THREADSAFETY) 735 ctx->stage = 1; // not set with thread safety 736 #endif 737 //PetscCall(TSSetSolution(ts,X)); 738 PetscCall(PetscLogStagePush(stage)); 739 #if defined(PETSC_HAVE_THREADSAFETY) 740 starttime = MPI_Wtime(); 741 #endif 742 #if defined(PETSC_HAVE_CUDA_NVTX) 743 nvtxRangePushA("ex2-TSSolve-warm"); 744 #endif 745 PetscCall(TSSolve(ts,X)); 746 #if defined(PETSC_HAVE_CUDA_NVTX) 747 nvtxRangePop(); 748 #endif 749 PetscCall(PetscLogStagePop()); 750 #if defined(PETSC_HAVE_THREADSAFETY) 751 endtime = MPI_Wtime(); 752 ctx->times[LANDAU_EX2_TSSOLVE] += (endtime - starttime); 753 #endif 754 /* clean up */ 755 PetscCall(DMPlexLandauDestroyVelocitySpace(&pack)); 756 PetscCall(TSDestroy(&ts)); 757 PetscCall(VecDestroy(&X)); 758 PetscCall(PetscFree(rectx)); 759 PetscCall(PetscFinalize()); 760 return 0; 761 } 762 763 /*TEST 764 765 testset: 766 requires: p4est !complex double defined(PETSC_USE_DMLANDAU_2D) 767 output_file: output/ex2_0.out 768 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 -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-10 -snes_stol 1.e-14 -snes_monitor -snes_converged_reason -snes_max_it 10 -ts_type arkimex -ts_arkimex_type 1bee -ts_max_snes_failures -1 -ts_rtol 1e-3 -ts_dt 1.e-1 -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 -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 2 769 test: 770 suffix: cpu 771 args: -dm_landau_device_type cpu -ksp_type bicg -pc_type jacobi 772 test: 773 suffix: kokkos 774 requires: kokkos_kernels 775 args: -dm_landau_device_type kokkos -dm_mat_type aijkokkos -dm_vec_type kokkos -ksp_type bicg -pc_type jacobi 776 test: 777 suffix: cuda 778 requires: cuda 779 args: -dm_landau_device_type cuda -dm_mat_type aijcusparse -dm_vec_type cuda -mat_cusparse_use_cpu_solve -ksp_type bicg -pc_type jacobi 780 test: 781 suffix: kokkos_batch 782 requires: kokkos_kernels 783 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 784 test: 785 suffix: kokkos_batch_coo 786 requires: kokkos_kernels 787 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 -dm_landau_coo_assembly 788 789 TEST*/ 790