Kspace styles
=============

Classes that compute long-range Coulombic interactions via K-space
representations (Ewald, PPPM) are derived from the KSpace class.  New
styles can be created to add new K-space options to LAMMPS.

Ewald.cpp is an example of computing K-space interactions.

Here is a brief description of methods you define in your new derived
class.  See kspace.h for details.

+---------------+------------------------------------------------+
| init          | initialize the calculation before a run        |
+---------------+------------------------------------------------+
| setup         | computation before the first timestep of a run |
+---------------+------------------------------------------------+
| compute       | every-timestep computation                     |
+---------------+------------------------------------------------+
| memory_usage  | tally of memory usage                          |
+---------------+------------------------------------------------+
