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lammps/src/kspace.h

70 lines
1.8 KiB
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_KSPACE_H
#define LMP_KSPACE_H
#include "pointers.h"
namespace LAMMPS_NS {
class KSpace : protected Pointers {
friend class ThrOMP;
public:
double energy;
double virial[6];
double g_ewald;
int nx_pppm,ny_pppm,nz_pppm;
KSpace(class LAMMPS *, int, char **);
virtual ~KSpace() {}
void modify_params(int, char **);
void *extract(const char *);
virtual void init() = 0;
virtual void setup() = 0;
virtual void compute(int, int) = 0;
virtual void timing(int, double &, double &) {}
virtual double memory_usage() {return 0.0;}
protected:
double slab_volfactor;
int gridflag,gewaldflag;
int order;
int slabflag;
double scale;
};
}
#endif
/* ERROR/WARNING messages:
E: Illegal ... command
Self-explanatory. Check the input script syntax and compare to the
documentation for the command. You can use -echo screen as a
command-line option when running LAMMPS to see the offending line.
E: Bad kspace_modify slab parameter
Kspace_modify value for the slab/volume keyword must be >= 2.0.
W: Kspace_modify slab param < 2.0 may cause unphysical behavior
The kspace_modify slab parameter should be larger to insure periodic
grids padded with empty space do not overlap.
*/