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update.h
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	/* ----------------------------------------------------------------------
	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 UPDATE_H
	#define UPDATE_H

	#include "pointers.h"

	namespace LAMMPS_NS {

	class Update : protected Pointers {
	public:
	double dt; // timestep
	double tolerance; // minimizer tolerance
	int ntimestep; // current step (dynamics or min iter)
	int nsteps; // # of steps to run (dynamics or min iter)
	int firststep,laststep; // 1st & last step of this run
	int beginstep,endstep; // 1st and last step of multiple runs
	int first_update; // 0 before initial update, 1 after
	int max_eval; // max force evaluations for minimizer
	int whichflag; // 0 for time integration, 1 for minimization

	double **f_pair; // used by pair to compute force & virial
	int maxpair;

	char *unit_style;

	class Integrate *integrate;
	char *integrate_style;

	class Min *minimize;
	char *minimize_style;

	Update(class LAMMPS *);
	~Update();
	void init();
	void set_units(char *);
	void create_integrate(int, char **);
	void create_minimize(int, char **);
	int memory_usage();
	};

	}

	#endif