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lammps/src/procmap.h
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procmap.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_PROCMAP_H
#define LMP_PROCMAP_H
#include "pointers.h"
namespace LAMMPS_NS {
class ProcMap : protected Pointers {
public:
ProcMap(class LAMMPS *);
~ProcMap() {}
void onelevel_grid(int, int *, int *, int, int, int *);
void twolevel_grid(int, int *, int *, int, int *, int *, int, int, int *);
void numa_grid(int, int *, int *, int *);
void custom_grid(char *, int, int *, int *);
void cart_map(int, int *, int *, int [3][2], int ***);
void cart_map(int, int *, int, int *, int *, int [3][2], int ***);
void xyz_map(char *, int *, int *, int [3][2], int ***);
void xyz_map(char *, int *, int, int *, int *, int [3][2], int ***);
void numa_map(int, int *, int *, int [3][2], int ***);
void custom_map(int *, int *, int [3][2], int ***);
void output(char *, int *, int ***);
private:
int procs_per_node; // NUMA params
int procs_per_numa;
int node_id; // which node I am in
int nodegrid[3]; // 3d grid of nodes
int **cmap; // info in custom grid file
int factor(int, int **);
int combine_factors(int, int **, int, int **, int **);
int cull_2d(int, int **, int);
int cull_user(int, int **, int, int *);
int cull_other(int, int **, int, int, int *);
int best_factors(int, int **, int *, int, int, int);
void grid_shift(int, int, int &, int &);
};
}
#endif
/* ERROR/WARNING messages:
E: Could not create 3d grid of processors
UNDOCUMENTED
E: Processors twogrid requires proc count be a multiple of core count
UNDOCUMENTED
E: Could not create twolevel 3d grid of processors
UNDOCUMENTED
E: Could not create numa 3d grid of processors
UNDOCUMENTED
E: Could not create numa grid of processors
UNDOCUMENTED
E: Cannot open custom file
UNDOCUMENTED
E: Unexpected end of custom file
UNDOCUMENTED
E: Processors custom grid file is inconsistent
UNDOCUMENTED
E: Processors custom grid file is invalid
UNDOCUMENTED
E: Cannot open processors custom file
UNDOCUMENTED
*/
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