lightcone.h File Reference

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Functions
void	lightcone_init (Cosmology *CP, double timeBegin, const double UnitLength_in_cm, const char *OutputDir)
void	lightcone_compute (double a, double BoxSize, Cosmology *CP, inttime_t ti_curr, inttime_t ti_next)

Function Documentation

lightcone_compute()

void lightcone_compute	(	double	a,
		double	BoxSize,
		Cosmology *	CP,
		inttime_t	ti_curr,
		inttime_t	ti_next
	)

Definition at line 177 of file lightcone.c.

{
    int i;
    lightcone_set_time(a, BoxSize);
    const double ddrift = get_exact_drift_factor(CP, ti_curr, ti_next);
    #pragma omp parallel for
    for(i = 0; i < PartManager->NumPart; i++)
    {
        lightcone_cross(i, ddrift);
    }
}

References CP, get_exact_drift_factor(), lightcone_cross(), lightcone_set_time(), part_manager_type::NumPart, and PartManager.

Referenced by run().

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lightcone_init()

void lightcone_init	(	Cosmology *	CP,
		double	timeBegin,
		const double	UnitLength_in_cm,
		const char *	OutputDir
	)

Definition at line 91 of file lightcone.c.

{
    int i;
    dloga = (0.0 - log(timeBegin)) / (NENTRY - 1);
    for(i = 0; i < NENTRY; i ++) {
        lightcone_init_entry(CP, i, UnitLength_in_cm);
    };
    char buf[1024];
    int chunk = 100;
    int ThisTask;
    MPI_Comm_rank(MPI_COMM_WORLD, &ThisTask);
 
    sprintf(buf, "%s/lightcone/", OutputDir);
    mkdir(buf, 02755);
    sprintf(buf, "%s/lightcone/%03d/", OutputDir, (int)(ThisTask / chunk));
    mkdir(buf, 02755);
    sprintf(buf, "%s/lightcone/%03d/lightcone-%05d.raw", OutputDir, (int)(ThisTask / chunk), ThisTask);
 
    fd_lightcone = fopen(buf, "a+");
    if(fd_lightcone == NULL) {
        endrun(1, "failed to open %s\n", buf);
    }
    HorizonDistanceRef = lightcone_get_horizon(1 / (1 + ReferenceRedshift));
    printf("lightcone reference redshift = %g distance = %g\n",
            ReferenceRedshift, HorizonDistanceRef);
}

References CP, dloga, endrun(), fd_lightcone, HorizonDistanceRef, lightcone_get_horizon(), lightcone_init_entry(), NENTRY, ReferenceRedshift, ThisTask, and UnitLength_in_cm.

Referenced by begrun().

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