ResamplingTrigger.H

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/* Copyright 2019-2020 Neil Zaim
 *
 * This file is part of WarpX.
 *
 * License: BSD-3-Clause-LBNL
 */
#ifndef WARPX_RESAMPLING_TRIGGER_H_
#define WARPX_RESAMPLING_TRIGGER_H_
 
#include <ablastr/utils/text/IntervalsParser.H>
 
#include <AMReX_REAL.H>
 
#include <limits>
#include <string>

class ResamplingTrigger
{
public:

    ResamplingTrigger () = default;

    explicit ResamplingTrigger (const std::string& species_name);

    bool triggered (int timestep, amrex::Real global_numparts) const;

    void initialize_global_numcells () const;
 
private:
    // Intervals that define predetermined timesteps at which resampling is performed for all
    // species.
    ablastr::utils::text::IntervalsParser m_resampling_intervals;
 
    // Average number of particles per cell above which resampling is performed for a given species
    amrex::Real m_max_avg_ppc = std::numeric_limits<amrex::Real>::max();
 
    //Total number of simulated cells, summed over all mesh refinement levels.
    mutable amrex::Real m_global_numcells = amrex::Real(0.0);
 
    mutable bool m_initialized = false;
};
 
#endif //WARPX_RESAMPLING_TRIGGER_H_