imbalance.h
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	/* -- c++ -- ----------------------------------------------------------
	LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
	http://lammps.sandia.gov, Sandia National Laboratories
	Steve Plimpton, sjplimp@sandia.gov

	Copyright (2003) Sandia Corporation. Under the terms of Contract
	DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
	certain rights in this software. This software is distributed under
	the GNU General Public License.

	See the README file in the top-level LAMMPS directory.
	------------------------------------------------------------------------- */

	#ifndef LMP_IMBALANCE_H
	#define LMP_IMBALANCE_H

	#include <stdio.h>

	namespace LAMMPS_NS {
	class LAMMPS;

	class Imbalance {
	public:
	Imbalance(LAMMPS *lmp) : _lmp(lmp) {};
	virtual ~Imbalance() {};

	// disallow default and copy constructor, assignment operator
	private:
	Imbalance() {};
	Imbalance(const Imbalance &) {};
	Imbalance &operator=(const Imbalance &) {return *this;};

	// internal use only data members
	protected:
	LAMMPS *_lmp;

	// public API
	public:
	// parse options. return number of arguments consumed. (required)
	virtual int options(int narg, char **arg) = 0;
	// reinitialize internal data (needed for fix balance) (optional)
	virtual void init() {};
	// compute and apply weight factors to local atom array (required)
	virtual void compute(double *weights) = 0;
	// print information about the state of this imbalance compute (required)
	virtual void info(FILE *fp) = 0;
	};

	}

	#endif