imbalance_group.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_GROUP_H
	#define LMP_IMBALANCE_GROUP_H

	#include "imbalance.h"

	namespace LAMMPS_NS {

	class ImbalanceGroup : public Imbalance {

	public:
	ImbalanceGroup(LAMMPS *lmp) : Imbalance(lmp),_num(0),_id(0),_factor(0) {};
	virtual ~ImbalanceGroup() { delete[] _id; delete[] _factor; };

	// internal data members
	private:
	int _num; // number of groups with weights
	int *_id; // list numerical id's of groups
	double *_factor; // list if group weight factors

	// required member functions
	public:
	// parse options. return number of arguments consumed.
	virtual int options(int narg, char **arg);
	// compute and apply weight factors to local atom array
	virtual void compute(double *weight);
	// print information about the state of this imbalance compute
	virtual void info(FILE *fp);
	};

	}

	#endif