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atom_vec_dpd.cpp
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Sun, Oct 13, 02:07
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text/x-c
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Tue, Oct 15, 02:07 (1 d, 23 h)
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rLAMMPS lammps
atom_vec_dpd.cpp
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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.
------------------------------------------------------------------------- */
#include "stdlib.h"
#include "atom_vec_dpd.h"
#include "atom.h"
#include "domain.h"
#include "modify.h"
#include "fix.h"
#include "memory.h"
#include "error.h"
using
namespace
LAMMPS_NS
;
#define DELTA 10000
/* ---------------------------------------------------------------------- */
AtomVecDPD
::
AtomVecDPD
(
LAMMPS
*
lmp
,
int
narg
,
char
**
arg
)
:
AtomVecAtomic
(
lmp
,
narg
,
arg
)
{
mass_type
=
1
;
comm_x_only
=
0
;
size_comm
=
6
;
size_reverse
=
3
;
size_border
=
9
;
size_data_atom
=
5
;
size_data_vel
=
4
;
xcol_data
=
3
;
}
/* ---------------------------------------------------------------------- */
int
AtomVecDPD
::
pack_comm
(
int
n
,
int
*
list
,
double
*
buf
,
int
pbc_flag
,
int
*
pbc
)
{
int
i
,
j
,
m
;
double
dx
,
dy
,
dz
;
m
=
0
;
if
(
pbc_flag
==
0
)
{
for
(
i
=
0
;
i
<
n
;
i
++
)
{
j
=
list
[
i
];
buf
[
m
++
]
=
x
[
j
][
0
];
buf
[
m
++
]
=
x
[
j
][
1
];
buf
[
m
++
]
=
x
[
j
][
2
];
buf
[
m
++
]
=
v
[
j
][
0
];
buf
[
m
++
]
=
v
[
j
][
1
];
buf
[
m
++
]
=
v
[
j
][
2
];
}
}
else
{
if
(
domain
->
triclinic
==
0
)
{
dx
=
pbc
[
0
]
*
domain
->
xprd
;
dy
=
pbc
[
1
]
*
domain
->
yprd
;
dz
=
pbc
[
2
]
*
domain
->
zprd
;
}
else
{
dx
=
pbc
[
0
]
*
domain
->
xprd
+
pbc
[
5
]
*
domain
->
xy
+
pbc
[
4
]
*
domain
->
xz
;
dy
=
pbc
[
1
]
*
domain
->
yprd
+
pbc
[
3
]
*
domain
->
yz
;
dz
=
pbc
[
2
]
*
domain
->
zprd
;
}
for
(
i
=
0
;
i
<
n
;
i
++
)
{
j
=
list
[
i
];
buf
[
m
++
]
=
x
[
j
][
0
]
+
dx
;
buf
[
m
++
]
=
x
[
j
][
1
]
+
dy
;
buf
[
m
++
]
=
x
[
j
][
2
]
+
dz
;
buf
[
m
++
]
=
v
[
j
][
0
];
buf
[
m
++
]
=
v
[
j
][
1
];
buf
[
m
++
]
=
v
[
j
][
2
];
}
}
return
m
;
}
/* ---------------------------------------------------------------------- */
int
AtomVecDPD
::
pack_comm_one
(
int
i
,
double
*
buf
)
{
buf
[
0
]
=
v
[
i
][
0
];
buf
[
1
]
=
v
[
i
][
1
];
buf
[
2
]
=
v
[
i
][
2
];
return
3
;
}
/* ---------------------------------------------------------------------- */
void
AtomVecDPD
::
unpack_comm
(
int
n
,
int
first
,
double
*
buf
)
{
int
i
,
m
,
last
;
m
=
0
;
last
=
first
+
n
;
for
(
i
=
first
;
i
<
last
;
i
++
)
{
x
[
i
][
0
]
=
buf
[
m
++
];
x
[
i
][
1
]
=
buf
[
m
++
];
x
[
i
][
2
]
=
buf
[
m
++
];
v
[
i
][
0
]
=
buf
[
m
++
];
v
[
i
][
1
]
=
buf
[
m
++
];
v
[
i
][
2
]
=
buf
[
m
++
];
}
}
/* ---------------------------------------------------------------------- */
int
AtomVecDPD
::
unpack_comm_one
(
int
i
,
double
*
buf
)
{
v
[
i
][
0
]
=
buf
[
0
];
v
[
i
][
1
]
=
buf
[
1
];
v
[
i
][
2
]
=
buf
[
2
];
return
3
;
}
/* ---------------------------------------------------------------------- */
int
AtomVecDPD
::
pack_border
(
int
n
,
int
*
list
,
double
*
buf
,
int
pbc_flag
,
int
*
pbc
)
{
int
i
,
j
,
m
;
double
dx
,
dy
,
dz
;
m
=
0
;
if
(
pbc_flag
==
0
)
{
for
(
i
=
0
;
i
<
n
;
i
++
)
{
j
=
list
[
i
];
buf
[
m
++
]
=
x
[
j
][
0
];
buf
[
m
++
]
=
x
[
j
][
1
];
buf
[
m
++
]
=
x
[
j
][
2
];
buf
[
m
++
]
=
tag
[
j
];
buf
[
m
++
]
=
type
[
j
];
buf
[
m
++
]
=
mask
[
j
];
buf
[
m
++
]
=
v
[
j
][
0
];
buf
[
m
++
]
=
v
[
j
][
1
];
buf
[
m
++
]
=
v
[
j
][
2
];
}
}
else
{
if
(
domain
->
triclinic
==
0
)
{
dx
=
pbc
[
0
]
*
domain
->
xprd
;
dy
=
pbc
[
1
]
*
domain
->
yprd
;
dz
=
pbc
[
2
]
*
domain
->
zprd
;
}
else
{
dx
=
pbc
[
0
];
dy
=
pbc
[
1
];
dz
=
pbc
[
2
];
}
for
(
i
=
0
;
i
<
n
;
i
++
)
{
j
=
list
[
i
];
buf
[
m
++
]
=
x
[
j
][
0
]
+
dx
;
buf
[
m
++
]
=
x
[
j
][
1
]
+
dy
;
buf
[
m
++
]
=
x
[
j
][
2
]
+
dz
;
buf
[
m
++
]
=
tag
[
j
];
buf
[
m
++
]
=
type
[
j
];
buf
[
m
++
]
=
mask
[
j
];
buf
[
m
++
]
=
v
[
j
][
0
];
buf
[
m
++
]
=
v
[
j
][
1
];
buf
[
m
++
]
=
v
[
j
][
2
];
}
}
return
m
;
}
/* ---------------------------------------------------------------------- */
int
AtomVecDPD
::
pack_border_one
(
int
i
,
double
*
buf
)
{
buf
[
0
]
=
v
[
i
][
0
];
buf
[
1
]
=
v
[
i
][
1
];
buf
[
2
]
=
v
[
i
][
2
];
return
3
;
}
/* ---------------------------------------------------------------------- */
void
AtomVecDPD
::
unpack_border
(
int
n
,
int
first
,
double
*
buf
)
{
int
i
,
m
,
last
;
m
=
0
;
last
=
first
+
n
;
for
(
i
=
first
;
i
<
last
;
i
++
)
{
if
(
i
==
nmax
)
grow
(
0
);
x
[
i
][
0
]
=
buf
[
m
++
];
x
[
i
][
1
]
=
buf
[
m
++
];
x
[
i
][
2
]
=
buf
[
m
++
];
tag
[
i
]
=
static_cast
<
int
>
(
buf
[
m
++
]);
type
[
i
]
=
static_cast
<
int
>
(
buf
[
m
++
]);
mask
[
i
]
=
static_cast
<
int
>
(
buf
[
m
++
]);
v
[
i
][
0
]
=
buf
[
m
++
];
v
[
i
][
1
]
=
buf
[
m
++
];
v
[
i
][
2
]
=
buf
[
m
++
];
}
}
/* ---------------------------------------------------------------------- */
int
AtomVecDPD
::
unpack_border_one
(
int
i
,
double
*
buf
)
{
v
[
i
][
0
]
=
buf
[
0
];
v
[
i
][
1
]
=
buf
[
1
];
v
[
i
][
2
]
=
buf
[
2
];
return
3
;
}
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