mirror of
https://github.com/cosmo-sims/MUSIC.git
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121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
/*
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general.hh - 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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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GENERAL_HH
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#define __GENERAL_HH
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#include <omp.h>
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#ifdef WITH_MPI
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#ifdef MANNO
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#include <mpi.h>
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#else
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#include <mpi++.h>
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#endif
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#else
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#include <time.h>
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#endif
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#ifdef SINGLE_PRECISION
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#ifdef WITH_MPI
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#include "srfftw_mpi.h"
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#define MPI_TREAL MPI_FLOAT
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#else
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#include "srfftw.h"
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#endif
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typedef float real_t;
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#else
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#ifdef WITH_MPI
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#include "drfftw_mpi.h"
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#define MPI_TREAL MPI_DOUBLE
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#else
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#include "drfftw.h"
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#endif
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typedef double real_t;
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#endif
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#include <vector>
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#include "mesh.hh"
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typedef GridHierarchy<real_t> grid_hierarchy;
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typedef MeshvarBnd<real_t> meshvar_bnd;
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typedef Meshvar<real_t> meshvar;
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/* Convenience from Numerical Recipes in C, 2nd edition */
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template< typename T >
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inline T SQR( T a ){
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return a*a;
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}
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template< typename T >
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inline T CUBE( T a ){
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return a*a*a;
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}
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template< typename T >
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inline T POW4( T a ){
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return a*a*a*a;
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}
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// --- structure for cosmological parameters --- //
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typedef struct cosmology{
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double
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Omega_m, // baryon+dark matter density
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Omega_b, // baryon matter density
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Omega_L, // dark energy density
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H0, // Hubble constant
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nspect, // long-wave spectral index (scale free is nspect=1)
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sigma8, // power spectrum normalization
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//Gamma, // shape parameter (of historical interest, as a free parameter)
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//fnl, // non-gaussian contribution parameter
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//w0, // dark energy equation of state parameter (not implemented, i.e. =1 at the moment)
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//wa, // dark energy equation of state parameter (not implemented, i.e. =1 at the moment)
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dplus,
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pnorm,
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vfact,
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WDMmass,
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WDMg_x,
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astart; // expansion factor a for which to generate initial conditions
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}Cosmology;
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typedef struct {
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unsigned levelmin, levelmax;
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double boxlength;
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std::vector<unsigned> offx,offy,offz,llx,lly,llz;
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}Parameters;
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inline double time_seconds( void )
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{
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#ifdef WITH_MPI
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return MPI_Wtime();
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#else
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return ((double) clock()) / CLOCKS_PER_SEC;
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#endif
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}
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#endif
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