mirror of
https://github.com/cosmo-sims/MUSIC.git
synced 2024-09-19 17:03:46 +02:00
1403 lines
45 KiB
C++
1403 lines
45 KiB
C++
/*
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main.cc - This file is part of MUSIC -
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a code to generate multi-scale initial conditions
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for cosmological simulations
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Copyright (C) 2010 Oliver Hahn
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*/
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#include <stdio.h>
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#include <iostream>
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#include <iomanip>
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#include <math.h>
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#include <gsl/gsl_rng.h>
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#include <gsl/gsl_randist.h>
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#include <gsl/gsl_integration.h>
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#include "general.hh"
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#include "defaults.hh"
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#include "output.hh"
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#include "config_file.hh"
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#include "poisson.hh"
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#include "mg_solver.hh"
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#include "fd_schemes.hh"
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#include "random.hh"
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#include "densities.hh"
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#include "convolution_kernel.hh"
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#include "cosmology.hh"
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#include "transfer_function.hh"
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#define THE_CODE_NAME "music!"
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#define THE_CODE_VERSION "1.2b"
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namespace music
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{
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struct framework
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{
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transfer_function *the_transfer_function;
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//poisson_solver *the_poisson_solver;
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config_file *the_config_file;
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refinement_hierarchy *the_refinement_hierarchy;
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};
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}
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//... declare static class members here
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transfer_function *TransferFunction_real::ptf_ = NULL;
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transfer_function *TransferFunction_k::ptf_ = NULL;
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tf_type TransferFunction_k::type_;
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tf_type TransferFunction_real::type_;
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real_t TransferFunction_real::nspec_ = -1.0;
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real_t TransferFunction_k::nspec_ = -1.0;
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//... prototypes for routines used in main driver routine
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void splash(void);
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void modify_grid_for_TF( const refinement_hierarchy& rh_full, refinement_hierarchy& rh_TF, config_file& cf );
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void print_hierarchy_stats( config_file& cf, const refinement_hierarchy& rh );
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void store_grid_structure( config_file& cf, const refinement_hierarchy& rh );
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double compute_finest_mean( grid_hierarchy& u );
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double compute_finest_sigma( grid_hierarchy& u );
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void splash(void)
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{
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std::cout
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<< "\n __ __ __ __ ______ __ ______ \n"
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<< " /\\ \"-./ \\ /\\ \\/\\ \\ /\\ ___\\ /\\ \\ /\\ ___\\ \n"
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<< " \\ \\ \\-./\\ \\ \\ \\ \\_\\ \\ \\ \\___ \\ \\ \\ \\ \\ \\ \\____ \n"
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<< " \\ \\_\\ \\ \\_\\ \\ \\_____\\ \\/\\_____\\ \\ \\_\\ \\ \\_____\\ \n"
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<< " \\/_/ \\/_/ \\/_____/ \\/_____/ \\/_/ \\/_____/ \n\n"
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<< " this is " << THE_CODE_NAME << " version " << THE_CODE_VERSION << "\n\n\n";
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}
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void modify_grid_for_TF( const refinement_hierarchy& rh_full, refinement_hierarchy& rh_TF, config_file& cf )
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{
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unsigned lbase, lbaseTF, lmax, overlap;
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lbase = cf.getValue<unsigned>( "setup", "levelmin" );
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lmax = cf.getValue<unsigned>( "setup", "levelmax" );
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lbaseTF = cf.getValueSafe<unsigned>( "setup", "levelmin_TF", lbase );
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overlap = cf.getValueSafe<unsigned>( "setup", "overlap", 4 );
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rh_TF = rh_full;
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unsigned pad = overlap;
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for( unsigned i=lbase+1; i<=lmax; ++i )
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{
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int x0[3], lx[3], lxmax = 0;
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for( int j=0; j<3; ++j )
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{
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lx[j] = rh_TF.size(i,j)+2*pad;
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x0[j] = rh_TF.offset_abs(i,j)-pad;
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if( lx[j] > lxmax )
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lxmax = lx[j];
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}
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//... make sure that grids are divisible by 4 for convolution.
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lxmax += lxmax%4;
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for( int j=0; j<3; ++j )
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{
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double dl = 0.5*((double)(lxmax-lx[j]));
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int add_left = (int)ceil(dl);
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lx[j] = lxmax;
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x0[j] -= add_left;
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x0[j] += x0[j]%2;
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}
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rh_TF.adjust_level(i, lx[0], lx[1], lx[2], x0[0], x0[1], x0[2] );
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}
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if( lbaseTF > lbase )
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{
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std::cout << " - Will use levelmin = " << lbaseTF << " to compute density field...\n";
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for( unsigned i=lbase; i<=lbaseTF; ++i )
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{
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unsigned nfull = (unsigned)pow(2,i);
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rh_TF.adjust_level(i, nfull, nfull, nfull, 0, 0, 0);
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}
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}
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}
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void print_hierarchy_stats( config_file& cf, const refinement_hierarchy& rh )
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{
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double omegam = cf.getValue<double>("cosmology","Omega_m");
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double omegab = cf.getValue<double>("cosmology","Omega_b");
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bool bbaryons = cf.getValue<bool>("setup","baryons");
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double boxlength = cf.getValue<double>("setup","boxlength");
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unsigned levelmin = rh.levelmin();
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double dx = boxlength/(double)(1<<levelmin), dx3=dx*dx*dx;
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double rhom = 2.77519737e11; // h-1 M_o / (h-1 Mpc)**3
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double cmass, bmass(0.0), mtotgrid;
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if( bbaryons )
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{
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cmass = (omegam-omegab)*rhom*dx3;
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bmass = omegab*rhom*dx3;
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}else
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cmass = omegam*rhom*dx3;
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std::cout << "-------------------------------------------------------------\n";
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if( rh.get_shift(0)!=0||rh.get_shift(1)!=0||rh.get_shift(2)!=0 )
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std::cout << " - Domain will be shifted by (" << rh.get_shift(0) << ", " << rh.get_shift(1) << ", " << rh.get_shift(2) << ")\n" << std::endl;
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std::cout << " - Grid structure:\n";
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for( unsigned ilevel=rh.levelmin(); ilevel<=rh.levelmax(); ++ilevel )
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{
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double rfac = 1.0/(1<<(ilevel-rh.levelmin())), rfac3=rfac*rfac*rfac;
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mtotgrid = omegam*rhom*dx3*rfac3*rh.size(ilevel, 0)*rh.size(ilevel, 1)*rh.size(ilevel, 2);
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std::cout
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<< " Level " << std::setw(3) << ilevel << " : offset = (" << std::setw(5) << rh.offset(ilevel,0) << ", " << std::setw(5) << rh.offset(ilevel,1) << ", " << std::setw(5) << rh.offset(ilevel,2) << ")\n"
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<< " size = (" << std::setw(5) << rh.size(ilevel,0) << ", " << std::setw(5) << rh.size(ilevel,1) << ", " << std::setw(5) << rh.size(ilevel,2) << ")\n";
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if( ilevel == rh.levelmax() )
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{
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std::cout << "-------------------------------------------------------------\n";
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std::cout << " - Finest level :\n";
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if( dx*rfac > 0.1 )
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std::cout << " extent = " << dx*rfac*rh.size(ilevel,0) << " x " << dx*rfac*rh.size(ilevel,1) << " x " << dx*rfac * rh.size(ilevel,2) << " h-3 Mpc**3\n";
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else if( dx*rfac > 1e-4 )
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std::cout << " extent = " << dx*rfac*1000.0*rh.size(ilevel,0) << " x " << dx*rfac*1000.0*rh.size(ilevel,1) << " x " << dx*rfac*1000.0*rh.size(ilevel,2) << " h-3 kpc**3\n";
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else
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std::cout << " extent = " << dx*rfac*1.e6*rh.size(ilevel,0) << " x " << dx*rfac*1.e6*rh.size(ilevel,1) << " x " << dx*rfac*1.e6 * rh.size(ilevel,2) << " h-3 pc**3\n";
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std::cout << " mtotgrid = " << mtotgrid << " h-1 M_o\n";
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std::cout << " particle mass = " << cmass*rfac3 << " h-1 M_o\n";
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if( bbaryons )
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std::cout << " baryon mass/cell = " << bmass*rfac3 << " h-1 M_o\n";
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if( dx*rfac > 0.1 )
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std::cout << " dx = " << dx*rfac << " h-1 Mpc\n";
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else if( dx*rfac > 1e-4 )
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std::cout << " dx = " << dx*rfac*1000.0 << " h-1 kpc\n";
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else
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std::cout << " dx = " << dx*rfac*1.e6 << " h-1 pc\n";
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}
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}
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std::cout << "-------------------------------------------------------------\n";
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}
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void store_grid_structure( config_file& cf, const refinement_hierarchy& rh )
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{
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char str1[128], str2[128];
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for( unsigned i=rh.levelmin(); i<=rh.levelmax(); ++i )
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{
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for( int j=0; j<3; ++j )
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{
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sprintf(str1,"offset(%d,%d)",i,j);
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sprintf(str2,"%d",rh.offset(i,j));
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cf.insertValue("setup",str1,str2);
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sprintf(str1,"size(%d,%d)",i,j);
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sprintf(str2,"%ld",rh.size(i,j));
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cf.insertValue("setup",str1,str2);
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}
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}
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}
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double compute_finest_mean( grid_hierarchy& u )
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{
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double sum = 0.0;
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size_t count = 0;
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for( int ix = 0; ix < (int)(*u.get_grid(u.levelmax())).size(0); ++ix )
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for( int iy = 0; iy < (int)(*u.get_grid(u.levelmax())).size(1); ++iy )
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for( int iz = 0; iz < (int)(*u.get_grid(u.levelmax())).size(2); ++iz )
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if( ! u.is_refined(u.levelmax(),ix,iy,iz) )
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{
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sum += (*u.get_grid(u.levelmax()))(ix,iy,iz);
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++count;
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}
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sum /= count;
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return sum;
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}
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double compute_finest_sigma( grid_hierarchy& u )
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{
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double sum = 0.0, sum2 = 0.0;
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for( int ix = 0; ix < (int)(*u.get_grid(u.levelmax())).size(0); ++ix )
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for( int iy = 0; iy < (int)(*u.get_grid(u.levelmax())).size(1); ++iy )
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for( int iz = 0; iz < (int)(*u.get_grid(u.levelmax())).size(2); ++iz )
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{
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sum += (*u.get_grid(u.levelmax()))(ix,iy,iz);
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sum2 += (*u.get_grid(u.levelmax()))(ix,iy,iz)* (*u.get_grid(u.levelmax()))(ix,iy,iz);
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}
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size_t N = (size_t)(*u.get_grid(u.levelmax())).size(0)
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* (size_t)(*u.get_grid(u.levelmax())).size(1)
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* (size_t)(*u.get_grid(u.levelmax())).size(2);
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sum /= N;
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sum2 /= N;
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return sqrt(sum2-sum*sum);
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}
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/*****************************************************************************************************/
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/*****************************************************************************************************/
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/*****************************************************************************************************/
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region_generator_plugin *the_region_generator;
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int main (int argc, const char * argv[])
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{
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const unsigned nbnd = 4;
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unsigned lbase, lmax, lbaseTF;
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double err = 1.0;
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//------------------------------------------------------------------------------
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//... parse command line options
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//------------------------------------------------------------------------------
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splash();
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if( argc != 2 ){
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std::cout << " This version is compiled with the following plug-ins:\n";
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print_region_generator_plugins();
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print_transfer_function_plugins();
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print_output_plugins();
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std::cerr << "\n In order to run, you need to specify a parameter file!\n\n";
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exit(0);
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}
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//------------------------------------------------------------------------------
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//... open log file
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//------------------------------------------------------------------------------
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char logfname[128];
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sprintf(logfname,"%s_log.txt",argv[1]);
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MUSIC::log::setOutput(logfname);
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time_t ltime=time(NULL);
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LOGINFO("Opening log file \'%s\'.",logfname);
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LOGUSER("Running %s, version %s",THE_CODE_NAME,THE_CODE_VERSION);
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LOGUSER("Log is for run started %s",asctime( localtime(<ime) ));
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#ifdef FFTW3
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LOGUSER("Code was compiled using FFTW version 3.x");
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#else
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LOGUSER("Code was compiled using FFTW version 2.x");
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#endif
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#ifdef SINGLETHREAD_FFTW
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LOGUSER("Code was compiled for single-threaded FFTW");
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#else
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LOGUSER("Code was compiled for multi-threaded FFTW");
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LOGUSER("Running with a maximum of %d OpenMP threads", omp_get_max_threads() );
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#endif
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#ifdef SINGLE_PRECISION
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LOGUSER("Code was compiled for single precision.");
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#else
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LOGUSER("Code was compiled for double precision.");
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#endif
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//------------------------------------------------------------------------------
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//... read and interpret config file
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//------------------------------------------------------------------------------
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config_file cf(argv[1]);
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std::string tfname,randfname,temp;
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bool force_shift(false);
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double boxlength;
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//------------------------------------------------------------------------------
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//... initialize some parameters about grid set-up
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//------------------------------------------------------------------------------
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boxlength = cf.getValue<double>( "setup", "boxlength" );
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lbase = cf.getValue<unsigned>( "setup", "levelmin" );
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lmax = cf.getValue<unsigned>( "setup", "levelmax" );
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lbaseTF = cf.getValueSafe<unsigned>( "setup", "levelmin_TF", lbase );
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if( lbase == lmax && !force_shift )
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cf.insertValue("setup","no_shift","yes");
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if( lbaseTF < lbase )
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{
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std::cout << " - WARNING: levelminTF < levelmin. This is not good!\n"
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<< " I will set levelminTF = levelmin.\n";
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LOGUSER("levelminTF < levelmin. set levelminTF = levelmin.");
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lbaseTF = lbase;
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cf.insertValue("setup","levelmin_TF",cf.getValue<std::string>("setup","levelmin"));
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}
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//------------------------------------------------------------------------------
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//... initialize multithread FFTW
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//------------------------------------------------------------------------------
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#if not defined(SINGLETHREAD_FFTW)
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#ifdef FFTW3
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#ifdef SINGLE_PRECISION
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fftwf_init_threads();
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fftwf_plan_with_nthreads(omp_get_max_threads());
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#else
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fftw_init_threads();
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fftw_plan_with_nthreads(omp_get_max_threads());
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#endif
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#else
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fftw_threads_init();
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#endif
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#endif
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//------------------------------------------------------------------------------
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//... initialize cosmology
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//------------------------------------------------------------------------------
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bool
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do_baryons = cf.getValue<bool>("setup","baryons"),
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do_2LPT = cf.getValueSafe<bool>("setup","use_2LPT",false),
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do_LLA = cf.getValueSafe<bool>("setup","use_LLA",false),
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do_CVM = cf.getValueSafe<bool>("setup","center_vel",false),
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do_CVMfrompos = false;
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transfer_function_plugin *the_transfer_function_plugin
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= select_transfer_function_plugin( cf );
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cosmology cosmo( cf );
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std::cout << " - starting at a=" << cosmo.astart << std::endl;
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CosmoCalc ccalc(cosmo,the_transfer_function_plugin);
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cosmo.pnorm = ccalc.ComputePNorm( 2.0*M_PI/boxlength );
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cosmo.dplus = ccalc.CalcGrowthFactor( cosmo.astart )/ccalc.CalcGrowthFactor( 1.0 );
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cosmo.vfact = ccalc.ComputeVFact( cosmo.astart );
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if( !the_transfer_function_plugin->tf_has_total0() )
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cosmo.pnorm *= cosmo.dplus*cosmo.dplus;
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//... directly use the normalisation via a parameter rather than the calculated one
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cosmo.pnorm = cf.getValueSafe<double>("setup","force_pnorm",cosmo.pnorm);
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double vfac2lpt = 1.0;
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if( the_transfer_function_plugin->tf_velocity_units() && do_baryons )
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{
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vfac2lpt = cosmo.vfact; // if the velocities are in velocity units, we need to divide by vfact for the 2lPT term
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cosmo.vfact = 1.0;
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}
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//
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{
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char tmpstr[128];
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sprintf(tmpstr,"%.12g",cosmo.pnorm);
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cf.insertValue("cosmology","pnorm",tmpstr);
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sprintf(tmpstr,"%.12g",cosmo.dplus);
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cf.insertValue("cosmology","dplus",tmpstr);
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sprintf(tmpstr,"%.12g",cosmo.vfact);
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cf.insertValue("cosmology","vfact",tmpstr);
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}
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the_region_generator = select_region_generator_plugin( cf );
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//------------------------------------------------------------------------------
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//... determine run parameters
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//------------------------------------------------------------------------------
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if( !the_transfer_function_plugin->tf_is_distinct() && do_baryons )
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std::cout << " - WARNING: The selected transfer function does not support\n"
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<< " distinct amplitudes for baryon and DM fields!\n"
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<< " Perturbation amplitudes will be identical!" << std::endl;
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double kickfac = 0.0, kickfac_2LPT = 0.0;
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double velocity_restframe[3] = {0.0,0.0,0.0};
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if( do_CVM )
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{
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double ztarget = 0.0;//cf.getValueSafe<double>("setup","center_vel_zfinal",0.0);
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kickfac = ccalc.ComputeVelocityCompensation( cosmo.astart, 1./(1.+ztarget) )/cosmo.vfact;
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kickfac_2LPT = ccalc.ComputeVelocityCompensation_2LPT( cosmo.astart, 1./(1.+ztarget) )/cosmo.vfact;
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std::cout << " - Will center velocities for target redshift " << ztarget << std::endl;
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LOGUSER("Will center velocities for target redshift %f.",ztarget);
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double atarget = 1.0;
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if( cf.containsKey("setup", "center_vel_posfinal" ) )
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{
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double CVM_x0final[3], CVM_x0initial[3], dx[3];
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do_CVMfrompos = true;
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atarget = cf.getValueSafe("setup", "center_vel_afinal", atarget );
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std::string strtemp;
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strtemp = cf.getValue<std::string>( "setup", "center_vel_posfinal" );
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sscanf( strtemp.c_str(), "%lf,%lf,%lf", &CVM_x0final[0], &CVM_x0final[1], &CVM_x0final[2] );
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|
kickfac = ccalc.CalcTFac( cosmo.astart, atarget );
|
|
|
|
LOGINFO("Will center velocities for target position\n (%f,%f,%f) at a=%f.",CVM_x0final[0],CVM_x0final[1],CVM_x0final[2],atarget);
|
|
|
|
|
|
LOGINFO("kick factor is %f",kickfac);
|
|
// initial center definition goes here:
|
|
the_region_generator->get_center_unshifted( CVM_x0initial );
|
|
|
|
LOGINFO("Will center velocities for initial position\n (%f,%f,%f) at a=%f.",CVM_x0initial[0],CVM_x0initial[1],CVM_x0initial[2],cosmo.astart);
|
|
|
|
dx[0] = (CVM_x0final[0] - CVM_x0initial[0]);
|
|
dx[1] = (CVM_x0final[1] - CVM_x0initial[1]);
|
|
dx[2] = (CVM_x0final[2] - CVM_x0initial[2]);
|
|
|
|
velocity_restframe[0] = -dx[0] * kickfac;
|
|
velocity_restframe[1] = -dx[1] * kickfac;
|
|
velocity_restframe[2] = -dx[2] * kickfac;
|
|
|
|
LOGINFO("Setting initial velocity rest frame to (%f,%f,%f)", velocity_restframe[0],velocity_restframe[1],velocity_restframe[2]);
|
|
|
|
|
|
}else{
|
|
LOGINFO("Will zero initial velocities, no target center specified.");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... determine the refinement hierarchy
|
|
//------------------------------------------------------------------------------
|
|
|
|
refinement_hierarchy rh_Poisson( cf );
|
|
store_grid_structure(cf, rh_Poisson);
|
|
//rh_Poisson.output();
|
|
print_hierarchy_stats( cf, rh_Poisson );
|
|
|
|
refinement_hierarchy rh_TF( rh_Poisson );
|
|
modify_grid_for_TF( rh_Poisson, rh_TF, cf );
|
|
//rh_TF.output();
|
|
|
|
LOGUSER("Grid structure for Poisson solver:");
|
|
rh_Poisson.output_log();
|
|
LOGUSER("Grid structure for density convolution:");
|
|
rh_TF.output_log();
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... initialize the output plug-in
|
|
//------------------------------------------------------------------------------
|
|
std::string outformat, outfname;
|
|
outformat = cf.getValue<std::string>( "output", "format" );
|
|
outfname = cf.getValue<std::string>( "output", "filename" );
|
|
output_plugin *the_output_plugin = select_output_plugin( cf );
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... initialize the random numbers
|
|
//------------------------------------------------------------------------------
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " GENERATING WHITE NOISE\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing white noise...");
|
|
rand_gen rand( cf, rh_TF, the_transfer_function_plugin );
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... initialize the Poisson solver
|
|
//------------------------------------------------------------------------------
|
|
bool bdefd = cf.getValueSafe<bool> ( "poisson" , "fft_fine", true );
|
|
bool bglass = cf.getValueSafe<bool>("output","glass", false);
|
|
bool bsph = cf.getValueSafe<bool>("setup","do_SPH",false) && do_baryons;
|
|
bool bbshift= bsph && !bglass;
|
|
|
|
bool kspace = cf.getValueSafe<bool>( "poisson", "kspace", false );
|
|
bool kspace2LPT = kspace;
|
|
|
|
bool decic_DM = cf.getValueSafe<bool>( "output", "glass_cicdeconvolve", false );
|
|
bool decic_baryons = cf.getValueSafe<bool>( "output", "glass_cicdeconvolve", false ) & bsph;
|
|
|
|
//... if in unigrid mode, use k-space instead of hybrid
|
|
if(bdefd && (lbase==lmax))
|
|
{
|
|
kspace=true;
|
|
bdefd=false;
|
|
kspace2LPT=false;
|
|
}
|
|
|
|
std::string poisson_solver_name;
|
|
if( kspace )
|
|
poisson_solver_name = std::string("fft_poisson");
|
|
else
|
|
poisson_solver_name = std::string("mg_poisson");
|
|
|
|
unsigned grad_order = cf.getValueSafe<unsigned> ( "poisson" , "grad_order", 4 );
|
|
|
|
|
|
|
|
|
|
//... switch off if using kspace anyway
|
|
//bdefd &= !kspace;
|
|
|
|
poisson_plugin_creator *the_poisson_plugin_creator = get_poisson_plugin_map()[ poisson_solver_name ];
|
|
poisson_plugin *the_poisson_solver = the_poisson_plugin_creator->create( cf );
|
|
|
|
//---------------------------------------------------------------------------------
|
|
//... THIS IS THE MAIN DRIVER BRANCHING TREE RUNNING THE VARIOUS PARTS OF THE CODE
|
|
//---------------------------------------------------------------------------------
|
|
bool bfatal = false;
|
|
try{
|
|
if( ! do_2LPT )
|
|
{
|
|
LOGUSER("Entering 1LPT branch");
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... cdm density and displacements
|
|
//------------------------------------------------------------------------------
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING DARK MATTER DISPLACEMENTS\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing dark matter displacements...");
|
|
|
|
grid_hierarchy f( nbnd );//, u(nbnd);
|
|
tf_type my_tf_type = cdm;
|
|
if( !do_baryons || !the_transfer_function_plugin->tf_is_distinct() )
|
|
my_tf_type = total;
|
|
|
|
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, my_tf_type , rh_TF, rand, f, false, false );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
|
|
normalize_density(f);
|
|
|
|
LOGUSER("Writing CDM data");
|
|
the_output_plugin->write_dm_mass(f);
|
|
the_output_plugin->write_dm_density(f);
|
|
|
|
grid_hierarchy u( f ); u.zero();
|
|
err = the_poisson_solver->solve(f, u);
|
|
|
|
if(!bdefd)
|
|
f.deallocate();
|
|
|
|
LOGUSER("Writing CDM potential");
|
|
the_output_plugin->write_dm_potential(u);
|
|
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... DM displacements
|
|
//------------------------------------------------------------------------------
|
|
{
|
|
grid_hierarchy data_forIO(u);
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
if( bdefd )
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_DM );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= 1<<f.levelmax();
|
|
the_poisson_solver->gradient_add(icoord, u, data_forIO );
|
|
|
|
}
|
|
else
|
|
//... displacement
|
|
the_poisson_solver->gradient(icoord, u, data_forIO );
|
|
|
|
LOGUSER("Writing CDM displacements");
|
|
the_output_plugin->write_dm_position(icoord, data_forIO );
|
|
}
|
|
if( do_baryons )
|
|
u.deallocate();
|
|
data_forIO.deallocate();
|
|
}
|
|
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... gas density
|
|
//------------------------------------------------------------------------------
|
|
if( do_baryons )
|
|
{
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING BARYON DENSITY\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing baryon density...");
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, baryon , rh_TF, rand, f, false, bbshift );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
if( !do_LLA )
|
|
{
|
|
LOGUSER("Writing baryon density");
|
|
the_output_plugin->write_gas_density(f);
|
|
}
|
|
|
|
if( bsph )
|
|
{
|
|
u = f; u.zero();
|
|
err = the_poisson_solver->solve(f, u);
|
|
|
|
if(!bdefd)
|
|
f.deallocate();
|
|
|
|
grid_hierarchy data_forIO(u);
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
if( bdefd )
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_baryons);
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= 1<<f.levelmax();
|
|
the_poisson_solver->gradient_add(icoord, u, data_forIO );
|
|
|
|
}
|
|
else
|
|
//... displacement
|
|
the_poisson_solver->gradient(icoord, u, data_forIO );
|
|
|
|
LOGUSER("Writing baryon displacements");
|
|
the_output_plugin->write_gas_position(icoord, data_forIO );
|
|
|
|
}
|
|
u.deallocate();
|
|
data_forIO.deallocate();
|
|
if( bdefd )
|
|
f.deallocate();
|
|
}
|
|
else if( do_LLA )
|
|
{
|
|
u = f; u.zero();
|
|
err = the_poisson_solver->solve(f, u);
|
|
compute_LLA_density( u, f,grad_order );
|
|
u.deallocate();
|
|
normalize_density(f);
|
|
LOGUSER("Writing baryon density");
|
|
the_output_plugin->write_gas_density(f);
|
|
}
|
|
|
|
f.deallocate();
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... velocities
|
|
//------------------------------------------------------------------------------
|
|
if( (!the_transfer_function_plugin->tf_has_velocities() || !do_baryons) && !bsph )
|
|
{
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING VELOCITIES\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing velocitites...");
|
|
|
|
if( do_baryons )
|
|
{
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, total , rh_TF, rand, f, false, false );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
u = f; u.zero();
|
|
|
|
err = the_poisson_solver->solve(f, u);
|
|
|
|
if(!bdefd)
|
|
f.deallocate();
|
|
}
|
|
grid_hierarchy data_forIO(u);
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
//... displacement
|
|
if(bdefd)
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_baryons );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= 1<<f.levelmax();
|
|
the_poisson_solver->gradient_add(icoord, u, data_forIO );
|
|
}
|
|
else
|
|
the_poisson_solver->gradient(icoord, u, data_forIO );
|
|
|
|
|
|
|
|
//... multiply to get velocity
|
|
data_forIO *= cosmo.vfact;
|
|
|
|
//... velocity kick to keep refined region centered?
|
|
if(do_CVM)
|
|
{
|
|
|
|
double ukick = 0.0;
|
|
if( !do_CVMfrompos )
|
|
ukick = compute_finest_mean(data_forIO);
|
|
else{
|
|
ukick = compute_finest_mean(data_forIO);
|
|
LOGINFO("mean of %c-velocity of high-res particles is %f",'x'+icoord,ukick);
|
|
ukick = -velocity_restframe[icoord];
|
|
}
|
|
data_forIO -= ukick;
|
|
}
|
|
double sigv = compute_finest_sigma( data_forIO );
|
|
LOGINFO("sigma of %c-velocity of high-res particles is %f",'x'+icoord, sigv);
|
|
|
|
LOGUSER("Writing CDM velocities");
|
|
the_output_plugin->write_dm_velocity(icoord, data_forIO);
|
|
|
|
if( do_baryons )
|
|
{
|
|
LOGUSER("Writing baryon velocities");
|
|
the_output_plugin->write_gas_velocity(icoord, data_forIO);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
u.deallocate();
|
|
data_forIO.deallocate();
|
|
|
|
}
|
|
else
|
|
{
|
|
LOGINFO("Computing separate velocities for CDM and baryons:");
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING DARK MATTER VELOCITIES\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing dark matter velocitites...");
|
|
|
|
//... we do baryons and have velocity transfer functions, or we do SPH and not to shift
|
|
//... do DM first
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, vcdm , rh_TF, rand, f, false, false );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
u = f; u.zero();
|
|
|
|
err = the_poisson_solver->solve(f, u);
|
|
|
|
if(!bdefd)
|
|
f.deallocate();
|
|
|
|
double uref[3];
|
|
|
|
grid_hierarchy data_forIO(u);
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
//... displacement
|
|
if(bdefd)
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_DM );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= 1<<f.levelmax();
|
|
the_poisson_solver->gradient_add(icoord, u, data_forIO );
|
|
}
|
|
else
|
|
the_poisson_solver->gradient(icoord, u, data_forIO );
|
|
|
|
//... multiply to get velocity
|
|
data_forIO *= cosmo.vfact;
|
|
|
|
//... velocity kick to keep refined region centered?
|
|
if(do_CVM)
|
|
{
|
|
if( !do_CVMfrompos )
|
|
uref[icoord] = compute_finest_mean(data_forIO);
|
|
else{
|
|
double umean = compute_finest_mean(data_forIO);
|
|
LOGINFO("mean of %c-velocity of high-res particles is %f",'x'+icoord,umean);
|
|
|
|
uref[icoord] = -velocity_restframe[icoord];
|
|
}
|
|
data_forIO -= uref[icoord];
|
|
}
|
|
|
|
double sigv = compute_finest_sigma( data_forIO );
|
|
LOGINFO("sigma of %c-velocity of high-res DM is %f",'x'+icoord, sigv);
|
|
|
|
LOGUSER("Writing CDM velocities");
|
|
the_output_plugin->write_dm_velocity(icoord, data_forIO);
|
|
}
|
|
u.deallocate();
|
|
data_forIO.deallocate();
|
|
f.deallocate();
|
|
|
|
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING BARYON VELOCITIES\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing baryon velocitites...");
|
|
//... do baryons
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, vbaryon , rh_TF, rand, f, false, bbshift );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
u = f; u.zero();
|
|
|
|
err = the_poisson_solver->solve(f, u);
|
|
|
|
if(!bdefd)
|
|
f.deallocate();
|
|
|
|
data_forIO = u;
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
//... displacement
|
|
if(bdefd)
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_baryons );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= 1<<f.levelmax();
|
|
the_poisson_solver->gradient_add(icoord, u, data_forIO );
|
|
}
|
|
else
|
|
the_poisson_solver->gradient(icoord, u, data_forIO );
|
|
|
|
//... multiply to get velocity
|
|
data_forIO *= cosmo.vfact;
|
|
|
|
//... velocity kick to keep refined region centered?
|
|
if( do_CVM )
|
|
data_forIO -= uref[icoord];
|
|
|
|
double sigv = compute_finest_sigma( data_forIO );
|
|
LOGINFO("sigma of %c-velocity of high-res baryons is %f",'x'+icoord, sigv);
|
|
|
|
LOGUSER("Writing baryon velocities");
|
|
the_output_plugin->write_gas_velocity(icoord, data_forIO);
|
|
}
|
|
u.deallocate();
|
|
f.deallocate();
|
|
data_forIO.deallocate();
|
|
}
|
|
/*********************************************************************************************/
|
|
/*********************************************************************************************/
|
|
/*** 2LPT ************************************************************************************/
|
|
/*********************************************************************************************/
|
|
}else {
|
|
//.. use 2LPT ...
|
|
LOGUSER("Entering 2LPT branch");
|
|
|
|
grid_hierarchy f( nbnd ), u1(nbnd), u2LPT(nbnd), f2LPT( nbnd );
|
|
|
|
|
|
|
|
tf_type my_tf_type = vcdm;
|
|
bool dm_only = !do_baryons;
|
|
if( !do_baryons || !the_transfer_function_plugin->tf_has_velocities() )
|
|
my_tf_type = total;
|
|
|
|
std::cout << "=============================================================\n";
|
|
if( my_tf_type == total )
|
|
{
|
|
std::cout << " COMPUTING VELOCITIES\n";
|
|
LOGUSER("Computing velocities...");
|
|
}else{
|
|
std::cout << " COMPUTING DARK MATTER VELOCITIES\n";
|
|
LOGUSER("Computing dark matter velocities...");
|
|
}
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
|
|
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, my_tf_type , rh_TF, rand, f, false, false );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
if( dm_only )
|
|
{
|
|
the_output_plugin->write_dm_density(f);
|
|
the_output_plugin->write_dm_mass(f);
|
|
}
|
|
|
|
u1 = f; u1.zero();
|
|
|
|
//... compute 1LPT term
|
|
err = the_poisson_solver->solve(f, u1);
|
|
|
|
|
|
//... compute 2LPT term
|
|
if(bdefd)
|
|
f2LPT=f;
|
|
else
|
|
f.deallocate();
|
|
|
|
LOGINFO("Computing 2LPT term....");
|
|
if( !kspace2LPT )
|
|
compute_2LPT_source(u1, f2LPT, grad_order );
|
|
else{
|
|
LOGUSER("computing term using FFT");
|
|
compute_2LPT_source_FFT(cf, u1, f2LPT);
|
|
}
|
|
LOGINFO("Solving 2LPT Poisson equation");
|
|
u2LPT = u1; u2LPT.zero();
|
|
err = the_poisson_solver->solve(f2LPT, u2LPT);
|
|
|
|
//... if doing the hybrid step, we need a combined source term
|
|
if( bdefd )
|
|
{
|
|
f2LPT*=6.0/7.0/vfac2lpt;
|
|
f+=f2LPT;
|
|
|
|
if( !dm_only )
|
|
f2LPT.deallocate();
|
|
}
|
|
|
|
//... add the 2LPT contribution
|
|
u2LPT *= 6.0/7.0/vfac2lpt;
|
|
u1 += u2LPT;
|
|
|
|
double uref_2LPT[3];
|
|
|
|
if( !dm_only )
|
|
{
|
|
if( do_CVM )
|
|
{
|
|
grid_hierarchy data_forIO(u1);
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
the_poisson_solver->gradient(icoord, u2LPT, data_forIO );
|
|
uref_2LPT[icoord] = kickfac * compute_finest_mean(data_forIO);
|
|
}
|
|
data_forIO.deallocate();
|
|
}
|
|
u2LPT.deallocate();
|
|
}
|
|
|
|
double uref[3];
|
|
|
|
grid_hierarchy data_forIO(u1);
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
if(bdefd)
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_DM );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= (1<<f.levelmax());
|
|
the_poisson_solver->gradient_add(icoord, u1, data_forIO );
|
|
}
|
|
else
|
|
the_poisson_solver->gradient(icoord, u1, data_forIO );
|
|
|
|
data_forIO *= cosmo.vfact;
|
|
|
|
//... velocity kick to keep refined region centered?
|
|
#if 0
|
|
if( do_CVM )
|
|
{
|
|
/*uref[icoord] = kickfac * compute_finest_mean(data_forIO);
|
|
//std::cerr << "uref_old[" << icoord << "] = " << uref[icoord] << std::endl;
|
|
uref[icoord] = kickfac * compute_finest_mean(data_forIO) - 6./7. * uref_2LPT[icoord];
|
|
uref_2LPT[icoord] = 6./7. * kickfac_2LPT/kickfac * uref_2LPT[icoord];
|
|
uref[icoord] += uref_2LPT[icoord];
|
|
//std::cerr << "uref_new[" << icoord << "] = " << uref[icoord] << std::endl; */
|
|
uref[icoord] = compute_finest_mean(data_forIO);
|
|
|
|
data_forIO -= uref[icoord];
|
|
}
|
|
#endif
|
|
if(do_CVM)
|
|
{
|
|
if( !do_CVMfrompos )
|
|
uref[icoord] = compute_finest_mean(data_forIO);
|
|
else
|
|
uref[icoord] = -velocity_restframe[icoord];
|
|
|
|
data_forIO -= uref[icoord];
|
|
}
|
|
|
|
|
|
double sigv = compute_finest_sigma( data_forIO );
|
|
std::cerr << " - velocity component " << icoord << " : sigma = " << sigv << std::endl;
|
|
|
|
LOGUSER("Writing CDM velocities");
|
|
the_output_plugin->write_dm_velocity(icoord, data_forIO);
|
|
|
|
if( do_baryons && !the_transfer_function_plugin->tf_has_velocities() && !bsph)
|
|
{
|
|
LOGUSER("Writing baryon velocities");
|
|
the_output_plugin->write_gas_velocity(icoord, data_forIO);
|
|
}
|
|
}
|
|
data_forIO.deallocate();
|
|
if( !dm_only )
|
|
u1.deallocate();
|
|
|
|
|
|
if( do_baryons && (the_transfer_function_plugin->tf_has_velocities() || bsph) )
|
|
{
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING BARYON VELOCITIES\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing baryon displacements...");
|
|
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, vbaryon , rh_TF, rand, f, false, bbshift );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
u1 = f; u1.zero();
|
|
|
|
if(bdefd)
|
|
f2LPT=f;
|
|
|
|
//... compute 1LPT term
|
|
err = the_poisson_solver->solve(f, u1);
|
|
|
|
LOGINFO("Writing baryon potential");
|
|
the_output_plugin->write_gas_potential(u1);
|
|
|
|
//... compute 2LPT term
|
|
u2LPT = f; u2LPT.zero();
|
|
|
|
if( !kspace2LPT )
|
|
compute_2LPT_source(u1, f2LPT, grad_order );
|
|
else
|
|
compute_2LPT_source_FFT(cf, u1, f2LPT);
|
|
|
|
|
|
err = the_poisson_solver->solve(f2LPT, u2LPT);
|
|
|
|
//... if doing the hybrid step, we need a combined source term
|
|
if( bdefd )
|
|
{
|
|
f2LPT*=6.0/7.0/vfac2lpt;
|
|
f+=f2LPT;
|
|
|
|
f2LPT.deallocate();
|
|
}
|
|
|
|
//... add the 2LPT contribution
|
|
u2LPT *= 6.0/7.0/vfac2lpt;
|
|
u1 += u2LPT;
|
|
u2LPT.deallocate();
|
|
|
|
//grid_hierarchy data_forIO(u1);
|
|
data_forIO = u1;
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
if(bdefd)
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_baryons );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= (1<<f.levelmax());
|
|
the_poisson_solver->gradient_add(icoord, u1, data_forIO );
|
|
}
|
|
else
|
|
the_poisson_solver->gradient(icoord, u1, data_forIO );
|
|
|
|
data_forIO *= cosmo.vfact;
|
|
|
|
//... velocity kick to keep refined region centered?
|
|
if( do_CVM )
|
|
data_forIO -= uref[icoord];
|
|
|
|
double sigv = compute_finest_sigma( data_forIO );
|
|
std::cerr << " - velocity component " << icoord << " : sigma = " << sigv << std::endl;
|
|
|
|
LOGUSER("Writing baryon velocities");
|
|
the_output_plugin->write_gas_velocity(icoord, data_forIO);
|
|
}
|
|
data_forIO.deallocate();
|
|
u1.deallocate();
|
|
}
|
|
|
|
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING DARK MATTER DISPLACEMENTS\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing dark matter displacements...");
|
|
|
|
//... if baryons are enabled, the displacements have to be recomputed
|
|
//... otherwise we can compute them directly from the velocities
|
|
if( !dm_only )
|
|
{
|
|
// my_tf_type is cdm if do_baryons==true, total otherwise
|
|
my_tf_type = cdm;
|
|
if( !do_baryons || !the_transfer_function_plugin->tf_is_distinct() )
|
|
my_tf_type = total;
|
|
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, my_tf_type , rh_TF, rand, f, false, false );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
LOGUSER("Writing CDM data");
|
|
the_output_plugin->write_dm_density(f);
|
|
the_output_plugin->write_dm_mass(f);
|
|
u1 = f; u1.zero();
|
|
|
|
if(bdefd)
|
|
f2LPT=f;
|
|
|
|
//... compute 1LPT term
|
|
err = the_poisson_solver->solve(f, u1);
|
|
|
|
//... compute 2LPT term
|
|
u2LPT = f; u2LPT.zero();
|
|
|
|
if( !kspace2LPT )
|
|
compute_2LPT_source(u1, f2LPT, grad_order );
|
|
else
|
|
compute_2LPT_source_FFT(cf, u1, f2LPT);
|
|
|
|
err = the_poisson_solver->solve(f2LPT, u2LPT);
|
|
|
|
if( bdefd )
|
|
{
|
|
f2LPT*=3.0/7.0;
|
|
f+=f2LPT;
|
|
f2LPT.deallocate();
|
|
}
|
|
|
|
u2LPT *= 3.0/7.0;
|
|
u1 += u2LPT;
|
|
u2LPT.deallocate();
|
|
}else{
|
|
//... reuse prior data
|
|
/*f-=f2LPT;
|
|
the_output_plugin->write_dm_density(f);
|
|
the_output_plugin->write_dm_mass(f);
|
|
f+=f2LPT;*/
|
|
|
|
u2LPT *= 0.5;
|
|
u1 -= u2LPT;
|
|
u2LPT.deallocate();
|
|
|
|
if(bdefd)
|
|
{
|
|
f2LPT *= 0.5;
|
|
f-=f2LPT;
|
|
f2LPT.deallocate();
|
|
}
|
|
}
|
|
|
|
data_forIO = u1;
|
|
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
//... displacement
|
|
if(bdefd)
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_DM );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= 1<<f.levelmax();
|
|
the_poisson_solver->gradient_add(icoord, u1, data_forIO );
|
|
}
|
|
else
|
|
the_poisson_solver->gradient(icoord, u1, data_forIO );
|
|
|
|
LOGUSER("Writing CDM displacements");
|
|
the_output_plugin->write_dm_position(icoord, data_forIO );
|
|
}
|
|
|
|
data_forIO.deallocate();
|
|
u1.deallocate();
|
|
|
|
|
|
if( do_baryons && !bsph )
|
|
{
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING BARYON DENSITY\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing baryon density...");
|
|
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, baryon , rh_TF, rand, f, true, false );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
if( !do_LLA )
|
|
the_output_plugin->write_gas_density(f);
|
|
else
|
|
{
|
|
u1 = f; u1.zero();
|
|
|
|
//... compute 1LPT term
|
|
err = the_poisson_solver->solve(f, u1);
|
|
|
|
//... compute 2LPT term
|
|
u2LPT = f; u2LPT.zero();
|
|
|
|
if( !kspace2LPT )
|
|
compute_2LPT_source(u1, f2LPT, grad_order );
|
|
else
|
|
compute_2LPT_source_FFT(cf, u1, f2LPT);
|
|
|
|
err = the_poisson_solver->solve(f2LPT, u2LPT);
|
|
u2LPT *= 3.0/7.0;
|
|
u1 += u2LPT;
|
|
u2LPT.deallocate();
|
|
|
|
compute_LLA_density( u1, f, grad_order );
|
|
normalize_density(f);
|
|
|
|
LOGUSER("Writing baryon density");
|
|
the_output_plugin->write_gas_density(f);
|
|
}
|
|
}
|
|
else if( do_baryons && bsph )
|
|
{
|
|
std::cout << "=============================================================\n";
|
|
std::cout << " COMPUTING BARYON DISPLACEMENTS\n";
|
|
std::cout << "-------------------------------------------------------------\n";
|
|
LOGUSER("Computing baryon displacements...");
|
|
|
|
GenerateDensityHierarchy( cf, the_transfer_function_plugin, baryon , rh_TF, rand, f, false, bbshift );
|
|
coarsen_density(rh_Poisson, f);
|
|
f.add_refinement_mask( rh_Poisson.get_coord_shift() );
|
|
normalize_density(f);
|
|
|
|
LOGUSER("Writing baryon density");
|
|
the_output_plugin->write_gas_density(f);
|
|
u1 = f; u1.zero();
|
|
|
|
if(bdefd)
|
|
f2LPT=f;
|
|
|
|
//... compute 1LPT term
|
|
err = the_poisson_solver->solve(f, u1);
|
|
|
|
//... compute 2LPT term
|
|
u2LPT = f; u2LPT.zero();
|
|
|
|
if( !kspace2LPT )
|
|
compute_2LPT_source(u1, f2LPT, grad_order );
|
|
else
|
|
compute_2LPT_source_FFT(cf, u1, f2LPT);
|
|
|
|
err = the_poisson_solver->solve(f2LPT, u2LPT);
|
|
|
|
if( bdefd )
|
|
{
|
|
f2LPT*=3.0/7.0;
|
|
f+=f2LPT;
|
|
f2LPT.deallocate();
|
|
}
|
|
|
|
u2LPT *= 3.0/7.0;
|
|
u1 += u2LPT;
|
|
u2LPT.deallocate();
|
|
|
|
data_forIO = u1;
|
|
|
|
for( int icoord = 0; icoord < 3; ++icoord )
|
|
{
|
|
//... displacement
|
|
if(bdefd)
|
|
{
|
|
data_forIO.zero();
|
|
*data_forIO.get_grid(data_forIO.levelmax()) = *f.get_grid(f.levelmax());
|
|
poisson_hybrid(*data_forIO.get_grid(data_forIO.levelmax()), icoord, grad_order,
|
|
data_forIO.levelmin()==data_forIO.levelmax(), decic_baryons );
|
|
*data_forIO.get_grid(data_forIO.levelmax()) /= 1<<f.levelmax();
|
|
the_poisson_solver->gradient_add(icoord, u1, data_forIO );
|
|
}
|
|
else
|
|
the_poisson_solver->gradient(icoord, u1, data_forIO );
|
|
|
|
LOGUSER("Writing baryon displacements");
|
|
the_output_plugin->write_gas_position(icoord, data_forIO );
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... finish output
|
|
//------------------------------------------------------------------------------
|
|
|
|
the_output_plugin->finalize();
|
|
delete the_output_plugin;
|
|
|
|
}catch(std::runtime_error& excp){
|
|
LOGERR("Fatal error occured. Code will exit:");
|
|
LOGERR("Exception: %s",excp.what());
|
|
std::cerr << " - " << excp.what() << std::endl;
|
|
std::cerr << " - A fatal error occured. We need to exit...\n";
|
|
bfatal = true;
|
|
}
|
|
|
|
std::cout << "=============================================================\n";
|
|
|
|
|
|
|
|
if( !bfatal )
|
|
{
|
|
std::cout << " - Wrote output file \'" << outfname << "\'\n using plugin \'" << outformat << "\'...\n";
|
|
LOGUSER("Wrote output file \'%s\'.",outfname.c_str());
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... clean up
|
|
//------------------------------------------------------------------------------
|
|
delete the_transfer_function_plugin;
|
|
delete the_poisson_solver;
|
|
|
|
#if defined(FFTW3) and not defined(SINGLETHREAD_FFTW)
|
|
#ifdef SINGLE_PRECISION
|
|
fftwf_cleanup_threads();
|
|
#else
|
|
fftw_cleanup_threads();
|
|
#endif
|
|
#endif
|
|
|
|
|
|
//------------------------------------------------------------------------------
|
|
//... we are done !
|
|
//------------------------------------------------------------------------------
|
|
std::cout << " - Done!" << std::endl << std::endl;
|
|
|
|
ltime=time(NULL);
|
|
|
|
LOGUSER("Run finished succesfully on %s",asctime( localtime(<ime) ));
|
|
|
|
cf.log_dump();
|
|
|
|
|
|
return 0;
|
|
}
|