void solver_init(ode_workspace *odews, int argc, char **argv) { workspace *W; // Initialise the workspace odews->W = workspace_init(argc, argv); W = odews->W; odews->mdeclared = 0; // Put initial conditions in to y odews->y = zerosv(W->nu); odews->f = zerosv(W->nu); set_initial_conditions(W, odews->y); // Initial Jacobian computation double t0 = MPI_Wtime(); evaluate(W, odews->t0, odews->y, odews->f); double tf = MPI_Wtime(); odews->W->tfeval = tf - t0; t0 = MPI_Wtime(); jacupdate(W, odews->t0, odews->y); double ta = MPI_Wtime(); odews->S = newton_sparsity(W->J); double tb = MPI_Wtime(); newton_matrix(odews); tf = MPI_Wtime(); odews->W->tjacupdate = (tf - t0) - (tb - ta); odews->W->tjacfactorize = (tb - ta); }
planet_pointer dist_planetary_masses(long double stell_mass_ratio, long double stell_luminosity_ratio, long double inner_dust, long double outer_dust, long double outer_planet_limit, long double dust_density_coeff, planet_pointer seed_system, int do_moons) { long double a; long double e; long double mass; long double dust_mass; long double gas_mass; long double crit_mass; long double planet_inner_bound; long double planet_outer_bound; planet_pointer seeds = seed_system; set_initial_conditions(inner_dust,outer_dust); planet_inner_bound = nearest_planet(stell_mass_ratio); if (outer_planet_limit == 0) planet_outer_bound = farthest_planet(stell_mass_ratio); else planet_outer_bound = outer_planet_limit; while (dust_left) { if (seeds != NULL) { a = seeds->a; e = seeds->e; seeds = seeds->next_planet; } else { a = random_number(planet_inner_bound,planet_outer_bound); e = random_eccentricity( ); } mass = PROTOPLANET_MASS; dust_mass = 0; gas_mass = 0; if (flag_verbose & 0x0200) fprintf (stderr, "Checking %Lg AU.\n",a); if (dust_available(inner_effect_limit(a, e, mass), outer_effect_limit(a, e, mass))) { if (flag_verbose & 0x0100) fprintf (stderr, "Injecting protoplanet at %Lg AU.\n", a); dust_density = dust_density_coeff * sqrt(stell_mass_ratio) * exp(-ALPHA * pow(a,(1.0 / N))); crit_mass = critical_limit(a,e,stell_luminosity_ratio); accrete_dust(&mass, &dust_mass, &gas_mass, a,e,crit_mass, planet_inner_bound, planet_outer_bound); dust_mass += PROTOPLANET_MASS; if (mass > PROTOPLANET_MASS) coalesce_planetesimals(a,e,mass,crit_mass, dust_mass, gas_mass, stell_luminosity_ratio, planet_inner_bound,planet_outer_bound, do_moons); else if (flag_verbose & 0x0100) fprintf (stderr, ".. failed due to large neighbor.\n"); } else if (flag_verbose & 0x0200) fprintf (stderr, ".. failed.\n"); } return(planet_head); }