verlet_split.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.
	------------------------------------------------------------------------- */

	#ifdef INTEGRATE_CLASS

	IntegrateStyle(verlet/split,VerletSplit)

	#else

	#ifndef LMP_VERLET_SPLIT_H
	#define LMP_VERLET_SPLIT_H

	#include "verlet.h"

	namespace LAMMPS_NS {

	class VerletSplit : public Verlet {
	public:
	VerletSplit(class LAMMPS , int, char *);
	~VerletSplit();
	void init();
	void run(int);
	bigint memory_usage();

	private:
	int master; // 1 if an Rspace proc, 0 if Kspace
	int me_block; // proc ID within Rspace/Kspace block
	int ratio; // ratio of Rspace procs to Kspace procs
	int qsize,qdisp,xsize,xdisp; // MPI gather/scatter params for block comm
	MPI_Comm block; // communicator within one block
	int tip4p_flag; // 1 if PPPM/tip4p so do extra comm

	double **f_kspace; // copy of Kspace forces on Rspace procs
	int maxatom;

	void rk_setup();
	void r2k_comm();
	void k2r_comm();
	};

	}

	#endif
	#endif