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balance.h
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Wed, Oct 2, 03:02
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rLAMMPS lammps
balance.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 COMMAND_CLASS
CommandStyle
(
balance
,
Balance
)
#else
#ifndef LMP_BALANCE_H
#define LMP_BALANCE_H
#include "stdio.h"
#include "pointers.h"
namespace
LAMMPS_NS
{
class
Balance
:
protected
Pointers
{
public:
Balance
(
class
LAMMPS
*
);
~
Balance
();
void
command
(
int
,
char
**
);
void
dynamic_setup
(
char
*
,
int
,
double
);
int
dynamic
();
double
imbalance_nlocal
(
int
&
);
void
dumpout
(
bigint
,
FILE
*
);
private:
int
me
,
nprocs
;
int
xflag
,
yflag
,
zflag
;
// xyz LB flags
double
*
user_xsplit
,
*
user_ysplit
,
*
user_zsplit
;
// params for xyz LB
int
dflag
;
// dynamic LB flag
int
nitermax
;
// params for dynamic LB
double
thresh
;
char
bstr
[
4
];
int
ndim
;
// length of balance string bstr
int
*
bdim
;
// XYZ for each character in bstr
bigint
*
count
;
// counts for slices in one dim
bigint
*
onecount
;
// work vector of counts in one dim
bigint
*
sum
;
// cummulative count for slices in one dim
bigint
*
target
;
// target sum for slices in one dim
double
*
lo
,
*
hi
;
// lo/hi split coords that bound each target
bigint
*
losum
,
*
hisum
;
// cummulative counts at lo/hi coords
int
rho
;
// 0 for geometric recursion
// 1 for density weighted recursion
int
*
proccount
;
// particle count per processor
int
*
allproccount
;
int
outflag
;
// for output of balance results to file
FILE
*
fp
;
int
firststep
;
void
static_setup
(
char
*
);
double
imbalance_splits
(
int
&
);
void
tally
(
int
,
int
,
double
*
);
int
adjust
(
int
,
double
*
);
void
old_adjust
(
int
,
int
,
bigint
*
,
double
*
);
int
binary
(
double
,
int
,
double
*
);
void
debug_output
(
int
,
int
,
int
,
double
*
);
};
}
#endif
#endif
/* ERROR/WARNING messages:
E: Balance command before simulation box is defined
The balance command cannot be used before a read_data, read_restart,
or create_box command.
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: Cannot open balance output file
Self-explanatory.
E: Cannot balance in z dimension for 2d simulation
Self-explanatory.
E: Balance dynamic string is invalid
The string can only contain the characters "x", "y", or "z".
E: Lost atoms via balance: original %ld current %ld
This should not occur. Report the problem to the developers.
E: Balance produced bad splits
This should not occur. It means two or more cutting plane locations
are on top of each other or out of order. Report the problem to the
developers.
*/
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