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pair_gayberne.cpp
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rLAMMPS lammps
pair_gayberne.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.
------------------------------------------------------------------------- */
/* ----------------------------------------------------------------------
Contributing author: Mike Brown (SNL)
------------------------------------------------------------------------- */
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pair_gayberne.h"
#include "math_extra.h"
#include "atom.h"
#include "atom_vec_ellipsoid.h"
#include "comm.h"
#include "force.h"
#include "neighbor.h"
#include "neigh_list.h"
#include "integrate.h"
#include "citeme.h"
#include "memory.h"
#include "error.h"
using
namespace
LAMMPS_NS
;
static
const
char
cite_pair_gayberne
[]
=
"pair gayberne command:
\n\n
"
"@Article{Brown09,
\n
"
" author = {W. M. Brown, M. K. Petersen, S. J. Plimpton, and G. S. Grest},
\n
"
" title = {Liquid crystal nanodroplets in solution},
\n
"
" journal = {J.~Chem.~Phys.},
\n
"
" year = 2009,
\n
"
" volume = 130,
\n
"
" pages = {044901}
\n
"
"}
\n\n
"
;
/* ---------------------------------------------------------------------- */
PairGayBerne
::
PairGayBerne
(
LAMMPS
*
lmp
)
:
Pair
(
lmp
)
{
if
(
lmp
->
citeme
)
lmp
->
citeme
->
add
(
cite_pair_gayberne
);
single_enable
=
0
;
writedata
=
1
;
}
/* ----------------------------------------------------------------------
free all arrays
------------------------------------------------------------------------- */
PairGayBerne
::~
PairGayBerne
()
{
if
(
allocated
)
{
memory
->
destroy
(
setflag
);
memory
->
destroy
(
cutsq
);
memory
->
destroy
(
form
);
memory
->
destroy
(
epsilon
);
memory
->
destroy
(
sigma
);
memory
->
destroy
(
shape1
);
memory
->
destroy
(
shape2
);
memory
->
destroy
(
well
);
memory
->
destroy
(
cut
);
memory
->
destroy
(
lj1
);
memory
->
destroy
(
lj2
);
memory
->
destroy
(
lj3
);
memory
->
destroy
(
lj4
);
memory
->
destroy
(
offset
);
delete
[]
lshape
;
delete
[]
setwell
;
}
}
/* ---------------------------------------------------------------------- */
void
PairGayBerne
::
compute
(
int
eflag
,
int
vflag
)
{
int
i
,
j
,
ii
,
jj
,
inum
,
jnum
,
itype
,
jtype
;
double
evdwl
,
one_eng
,
rsq
,
r2inv
,
r6inv
,
forcelj
,
factor_lj
;
double
fforce
[
3
],
ttor
[
3
],
rtor
[
3
],
r12
[
3
];
double
a1
[
3
][
3
],
b1
[
3
][
3
],
g1
[
3
][
3
],
a2
[
3
][
3
],
b2
[
3
][
3
],
g2
[
3
][
3
],
temp
[
3
][
3
];
int
*
ilist
,
*
jlist
,
*
numneigh
,
**
firstneigh
;
double
*
iquat
,
*
jquat
;
evdwl
=
0.0
;
if
(
eflag
||
vflag
)
ev_setup
(
eflag
,
vflag
);
else
evflag
=
vflag_fdotr
=
0
;
AtomVecEllipsoid
::
Bonus
*
bonus
=
avec
->
bonus
;
int
*
ellipsoid
=
atom
->
ellipsoid
;
double
**
x
=
atom
->
x
;
double
**
f
=
atom
->
f
;
double
**
tor
=
atom
->
torque
;
int
*
type
=
atom
->
type
;
int
nlocal
=
atom
->
nlocal
;
double
*
special_lj
=
force
->
special_lj
;
int
newton_pair
=
force
->
newton_pair
;
inum
=
list
->
inum
;
ilist
=
list
->
ilist
;
numneigh
=
list
->
numneigh
;
firstneigh
=
list
->
firstneigh
;
// loop over neighbors of my atoms
for
(
ii
=
0
;
ii
<
inum
;
ii
++
)
{
i
=
ilist
[
ii
];
itype
=
type
[
i
];
if
(
form
[
itype
][
itype
]
==
ELLIPSE_ELLIPSE
)
{
iquat
=
bonus
[
ellipsoid
[
i
]].
quat
;
MathExtra
::
quat_to_mat_trans
(
iquat
,
a1
);
MathExtra
::
diag_times3
(
well
[
itype
],
a1
,
temp
);
MathExtra
::
transpose_times3
(
a1
,
temp
,
b1
);
MathExtra
::
diag_times3
(
shape2
[
itype
],
a1
,
temp
);
MathExtra
::
transpose_times3
(
a1
,
temp
,
g1
);
}
jlist
=
firstneigh
[
i
];
jnum
=
numneigh
[
i
];
for
(
jj
=
0
;
jj
<
jnum
;
jj
++
)
{
j
=
jlist
[
jj
];
factor_lj
=
special_lj
[
sbmask
(
j
)];
j
&=
NEIGHMASK
;
// r12 = center to center vector
r12
[
0
]
=
x
[
j
][
0
]
-
x
[
i
][
0
];
r12
[
1
]
=
x
[
j
][
1
]
-
x
[
i
][
1
];
r12
[
2
]
=
x
[
j
][
2
]
-
x
[
i
][
2
];
rsq
=
MathExtra
::
dot3
(
r12
,
r12
);
jtype
=
type
[
j
];
// compute if less than cutoff
if
(
rsq
<
cutsq
[
itype
][
jtype
])
{
switch
(
form
[
itype
][
jtype
])
{
case
SPHERE_SPHERE:
r2inv
=
1.0
/
rsq
;
r6inv
=
r2inv
*
r2inv
*
r2inv
;
forcelj
=
r6inv
*
(
lj1
[
itype
][
jtype
]
*
r6inv
-
lj2
[
itype
][
jtype
]);
forcelj
*=
-
r2inv
;
if
(
eflag
)
one_eng
=
r6inv
*
(
r6inv
*
lj3
[
itype
][
jtype
]
-
lj4
[
itype
][
jtype
])
-
offset
[
itype
][
jtype
];
fforce
[
0
]
=
r12
[
0
]
*
forcelj
;
fforce
[
1
]
=
r12
[
1
]
*
forcelj
;
fforce
[
2
]
=
r12
[
2
]
*
forcelj
;
ttor
[
0
]
=
ttor
[
1
]
=
ttor
[
2
]
=
0.0
;
rtor
[
0
]
=
rtor
[
1
]
=
rtor
[
2
]
=
0.0
;
break
;
case
SPHERE_ELLIPSE:
jquat
=
bonus
[
ellipsoid
[
j
]].
quat
;
MathExtra
::
quat_to_mat_trans
(
jquat
,
a2
);
MathExtra
::
diag_times3
(
well
[
jtype
],
a2
,
temp
);
MathExtra
::
transpose_times3
(
a2
,
temp
,
b2
);
MathExtra
::
diag_times3
(
shape2
[
jtype
],
a2
,
temp
);
MathExtra
::
transpose_times3
(
a2
,
temp
,
g2
);
one_eng
=
gayberne_lj
(
j
,
i
,
a2
,
b2
,
g2
,
r12
,
rsq
,
fforce
,
rtor
);
ttor
[
0
]
=
ttor
[
1
]
=
ttor
[
2
]
=
0.0
;
break
;
case
ELLIPSE_SPHERE:
one_eng
=
gayberne_lj
(
i
,
j
,
a1
,
b1
,
g1
,
r12
,
rsq
,
fforce
,
ttor
);
rtor
[
0
]
=
rtor
[
1
]
=
rtor
[
2
]
=
0.0
;
break
;
default
:
jquat
=
bonus
[
ellipsoid
[
j
]].
quat
;
MathExtra
::
quat_to_mat_trans
(
jquat
,
a2
);
MathExtra
::
diag_times3
(
well
[
jtype
],
a2
,
temp
);
MathExtra
::
transpose_times3
(
a2
,
temp
,
b2
);
MathExtra
::
diag_times3
(
shape2
[
jtype
],
a2
,
temp
);
MathExtra
::
transpose_times3
(
a2
,
temp
,
g2
);
one_eng
=
gayberne_analytic
(
i
,
j
,
a1
,
a2
,
b1
,
b2
,
g1
,
g2
,
r12
,
rsq
,
fforce
,
ttor
,
rtor
);
break
;
}
fforce
[
0
]
*=
factor_lj
;
fforce
[
1
]
*=
factor_lj
;
fforce
[
2
]
*=
factor_lj
;
ttor
[
0
]
*=
factor_lj
;
ttor
[
1
]
*=
factor_lj
;
ttor
[
2
]
*=
factor_lj
;
f
[
i
][
0
]
+=
fforce
[
0
];
f
[
i
][
1
]
+=
fforce
[
1
];
f
[
i
][
2
]
+=
fforce
[
2
];
tor
[
i
][
0
]
+=
ttor
[
0
];
tor
[
i
][
1
]
+=
ttor
[
1
];
tor
[
i
][
2
]
+=
ttor
[
2
];
if
(
newton_pair
||
j
<
nlocal
)
{
rtor
[
0
]
*=
factor_lj
;
rtor
[
1
]
*=
factor_lj
;
rtor
[
2
]
*=
factor_lj
;
f
[
j
][
0
]
-=
fforce
[
0
];
f
[
j
][
1
]
-=
fforce
[
1
];
f
[
j
][
2
]
-=
fforce
[
2
];
tor
[
j
][
0
]
+=
rtor
[
0
];
tor
[
j
][
1
]
+=
rtor
[
1
];
tor
[
j
][
2
]
+=
rtor
[
2
];
}
if
(
eflag
)
evdwl
=
factor_lj
*
one_eng
;
if
(
evflag
)
ev_tally_xyz
(
i
,
j
,
nlocal
,
newton_pair
,
evdwl
,
0.0
,
fforce
[
0
],
fforce
[
1
],
fforce
[
2
],
-
r12
[
0
],
-
r12
[
1
],
-
r12
[
2
]);
}
}
}
if
(
vflag_fdotr
)
virial_fdotr_compute
();
}
/* ----------------------------------------------------------------------
allocate all arrays
------------------------------------------------------------------------- */
void
PairGayBerne
::
allocate
()
{
allocated
=
1
;
int
n
=
atom
->
ntypes
;
memory
->
create
(
setflag
,
n
+
1
,
n
+
1
,
"pair:setflag"
);
for
(
int
i
=
1
;
i
<=
n
;
i
++
)
for
(
int
j
=
i
;
j
<=
n
;
j
++
)
setflag
[
i
][
j
]
=
0
;
memory
->
create
(
cutsq
,
n
+
1
,
n
+
1
,
"pair:cutsq"
);
memory
->
create
(
form
,
n
+
1
,
n
+
1
,
"pair:form"
);
memory
->
create
(
epsilon
,
n
+
1
,
n
+
1
,
"pair:epsilon"
);
memory
->
create
(
sigma
,
n
+
1
,
n
+
1
,
"pair:sigma"
);
memory
->
create
(
shape1
,
n
+
1
,
3
,
"pair:shape1"
);
memory
->
create
(
shape2
,
n
+
1
,
3
,
"pair:shape2"
);
memory
->
create
(
well
,
n
+
1
,
3
,
"pair:well"
);
memory
->
create
(
cut
,
n
+
1
,
n
+
1
,
"pair:cut"
);
memory
->
create
(
lj1
,
n
+
1
,
n
+
1
,
"pair:lj1"
);
memory
->
create
(
lj2
,
n
+
1
,
n
+
1
,
"pair:lj2"
);
memory
->
create
(
lj3
,
n
+
1
,
n
+
1
,
"pair:lj3"
);
memory
->
create
(
lj4
,
n
+
1
,
n
+
1
,
"pair:lj4"
);
memory
->
create
(
offset
,
n
+
1
,
n
+
1
,
"pair:offset"
);
lshape
=
new
double
[
n
+
1
];
setwell
=
new
int
[
n
+
1
];
for
(
int
i
=
1
;
i
<=
n
;
i
++
)
setwell
[
i
]
=
0
;
}
/* ----------------------------------------------------------------------
global settings
------------------------------------------------------------------------- */
void
PairGayBerne
::
settings
(
int
narg
,
char
**
arg
)
{
if
(
narg
!=
4
)
error
->
all
(
FLERR
,
"Illegal pair_style command"
);
gamma
=
force
->
numeric
(
FLERR
,
arg
[
0
]);
upsilon
=
force
->
numeric
(
FLERR
,
arg
[
1
])
/
2.0
;
mu
=
force
->
numeric
(
FLERR
,
arg
[
2
]);
cut_global
=
force
->
numeric
(
FLERR
,
arg
[
3
]);
// reset cutoffs that have been explicitly set
if
(
allocated
)
{
int
i
,
j
;
for
(
i
=
1
;
i
<=
atom
->
ntypes
;
i
++
)
for
(
j
=
i
+
1
;
j
<=
atom
->
ntypes
;
j
++
)
if
(
setflag
[
i
][
j
])
cut
[
i
][
j
]
=
cut_global
;
}
}
/* ----------------------------------------------------------------------
set coeffs for one or more type pairs
------------------------------------------------------------------------- */
void
PairGayBerne
::
coeff
(
int
narg
,
char
**
arg
)
{
if
(
narg
<
10
||
narg
>
11
)
error
->
all
(
FLERR
,
"Incorrect args for pair coefficients"
);
if
(
!
allocated
)
allocate
();
int
ilo
,
ihi
,
jlo
,
jhi
;
force
->
bounds
(
arg
[
0
],
atom
->
ntypes
,
ilo
,
ihi
);
force
->
bounds
(
arg
[
1
],
atom
->
ntypes
,
jlo
,
jhi
);
double
epsilon_one
=
force
->
numeric
(
FLERR
,
arg
[
2
]);
double
sigma_one
=
force
->
numeric
(
FLERR
,
arg
[
3
]);
double
eia_one
=
force
->
numeric
(
FLERR
,
arg
[
4
]);
double
eib_one
=
force
->
numeric
(
FLERR
,
arg
[
5
]);
double
eic_one
=
force
->
numeric
(
FLERR
,
arg
[
6
]);
double
eja_one
=
force
->
numeric
(
FLERR
,
arg
[
7
]);
double
ejb_one
=
force
->
numeric
(
FLERR
,
arg
[
8
]);
double
ejc_one
=
force
->
numeric
(
FLERR
,
arg
[
9
]);
double
cut_one
=
cut_global
;
if
(
narg
==
11
)
cut_one
=
force
->
numeric
(
FLERR
,
arg
[
10
]);
int
count
=
0
;
for
(
int
i
=
ilo
;
i
<=
ihi
;
i
++
)
{
for
(
int
j
=
MAX
(
jlo
,
i
);
j
<=
jhi
;
j
++
)
{
epsilon
[
i
][
j
]
=
epsilon_one
;
sigma
[
i
][
j
]
=
sigma_one
;
cut
[
i
][
j
]
=
cut_one
;
if
(
eia_one
!=
0.0
||
eib_one
!=
0.0
||
eic_one
!=
0.0
)
{
well
[
i
][
0
]
=
pow
(
eia_one
,
-
1.0
/
mu
);
well
[
i
][
1
]
=
pow
(
eib_one
,
-
1.0
/
mu
);
well
[
i
][
2
]
=
pow
(
eic_one
,
-
1.0
/
mu
);
if
(
eia_one
==
eib_one
&&
eib_one
==
eic_one
)
setwell
[
i
]
=
2
;
else
setwell
[
i
]
=
1
;
}
if
(
eja_one
!=
0.0
||
ejb_one
!=
0.0
||
ejc_one
!=
0.0
)
{
well
[
j
][
0
]
=
pow
(
eja_one
,
-
1.0
/
mu
);
well
[
j
][
1
]
=
pow
(
ejb_one
,
-
1.0
/
mu
);
well
[
j
][
2
]
=
pow
(
ejc_one
,
-
1.0
/
mu
);
if
(
eja_one
==
ejb_one
&&
ejb_one
==
ejc_one
)
setwell
[
j
]
=
2
;
else
setwell
[
j
]
=
1
;
}
setflag
[
i
][
j
]
=
1
;
count
++
;
}
}
if
(
count
==
0
)
error
->
all
(
FLERR
,
"Incorrect args for pair coefficients"
);
}
/* ----------------------------------------------------------------------
init specific to this pair style
------------------------------------------------------------------------- */
void
PairGayBerne
::
init_style
()
{
avec
=
(
AtomVecEllipsoid
*
)
atom
->
style_match
(
"ellipsoid"
);
if
(
!
avec
)
error
->
all
(
FLERR
,
"Pair gayberne requires atom style ellipsoid"
);
neighbor
->
request
(
this
,
instance_me
);
// per-type shape precalculations
// require that atom shapes are identical within each type
// if shape = 0 for point particle, set shape = 1 as required by Gay-Berne
for
(
int
i
=
1
;
i
<=
atom
->
ntypes
;
i
++
)
{
if
(
!
atom
->
shape_consistency
(
i
,
shape1
[
i
][
0
],
shape1
[
i
][
1
],
shape1
[
i
][
2
]))
error
->
all
(
FLERR
,
"Pair gayberne requires atoms with same type have same shape"
);
if
(
shape1
[
i
][
0
]
==
0.0
)
shape1
[
i
][
0
]
=
shape1
[
i
][
1
]
=
shape1
[
i
][
2
]
=
1.0
;
shape2
[
i
][
0
]
=
shape1
[
i
][
0
]
*
shape1
[
i
][
0
];
shape2
[
i
][
1
]
=
shape1
[
i
][
1
]
*
shape1
[
i
][
1
];
shape2
[
i
][
2
]
=
shape1
[
i
][
2
]
*
shape1
[
i
][
2
];
lshape
[
i
]
=
(
shape1
[
i
][
0
]
*
shape1
[
i
][
1
]
+
shape1
[
i
][
2
]
*
shape1
[
i
][
2
])
*
sqrt
(
shape1
[
i
][
0
]
*
shape1
[
i
][
1
]);
}
}
/* ----------------------------------------------------------------------
init for one type pair i,j and corresponding j,i
------------------------------------------------------------------------- */
double
PairGayBerne
::
init_one
(
int
i
,
int
j
)
{
if
(
setwell
[
i
]
==
0
||
setwell
[
j
]
==
0
)
error
->
all
(
FLERR
,
"Pair gayberne epsilon a,b,c coeffs are not all set"
);
if
(
setflag
[
i
][
j
]
==
0
)
{
epsilon
[
i
][
j
]
=
mix_energy
(
epsilon
[
i
][
i
],
epsilon
[
j
][
j
],
sigma
[
i
][
i
],
sigma
[
j
][
j
]);
sigma
[
i
][
j
]
=
mix_distance
(
sigma
[
i
][
i
],
sigma
[
j
][
j
]);
cut
[
i
][
j
]
=
mix_distance
(
cut
[
i
][
i
],
cut
[
j
][
j
]);
}
lj1
[
i
][
j
]
=
48.0
*
epsilon
[
i
][
j
]
*
pow
(
sigma
[
i
][
j
],
12.0
);
lj2
[
i
][
j
]
=
24.0
*
epsilon
[
i
][
j
]
*
pow
(
sigma
[
i
][
j
],
6.0
);
lj3
[
i
][
j
]
=
4.0
*
epsilon
[
i
][
j
]
*
pow
(
sigma
[
i
][
j
],
12.0
);
lj4
[
i
][
j
]
=
4.0
*
epsilon
[
i
][
j
]
*
pow
(
sigma
[
i
][
j
],
6.0
);
if
(
offset_flag
)
{
double
ratio
=
sigma
[
i
][
j
]
/
cut
[
i
][
j
];
offset
[
i
][
j
]
=
4.0
*
epsilon
[
i
][
j
]
*
(
pow
(
ratio
,
12.0
)
-
pow
(
ratio
,
6.0
));
}
else
offset
[
i
][
j
]
=
0.0
;
int
ishape
=
0
;
if
(
shape1
[
i
][
0
]
!=
shape1
[
i
][
1
]
||
shape1
[
i
][
0
]
!=
shape1
[
i
][
2
]
||
shape1
[
i
][
1
]
!=
shape1
[
i
][
2
])
ishape
=
1
;
if
(
setwell
[
i
]
==
1
)
ishape
=
1
;
int
jshape
=
0
;
if
(
shape1
[
j
][
0
]
!=
shape1
[
j
][
1
]
||
shape1
[
j
][
0
]
!=
shape1
[
j
][
2
]
||
shape1
[
j
][
1
]
!=
shape1
[
j
][
2
])
jshape
=
1
;
if
(
setwell
[
j
]
==
1
)
jshape
=
1
;
if
(
ishape
==
0
&&
jshape
==
0
)
form
[
i
][
i
]
=
form
[
j
][
j
]
=
form
[
i
][
j
]
=
form
[
j
][
i
]
=
SPHERE_SPHERE
;
else
if
(
ishape
==
0
)
{
form
[
i
][
i
]
=
SPHERE_SPHERE
;
form
[
j
][
j
]
=
ELLIPSE_ELLIPSE
;
form
[
i
][
j
]
=
SPHERE_ELLIPSE
;
form
[
j
][
i
]
=
ELLIPSE_SPHERE
;
}
else
if
(
jshape
==
0
)
{
form
[
j
][
j
]
=
SPHERE_SPHERE
;
form
[
i
][
i
]
=
ELLIPSE_ELLIPSE
;
form
[
j
][
i
]
=
SPHERE_ELLIPSE
;
form
[
i
][
j
]
=
ELLIPSE_SPHERE
;
}
else
form
[
i
][
i
]
=
form
[
j
][
j
]
=
form
[
i
][
j
]
=
form
[
j
][
i
]
=
ELLIPSE_ELLIPSE
;
epsilon
[
j
][
i
]
=
epsilon
[
i
][
j
];
sigma
[
j
][
i
]
=
sigma
[
i
][
j
];
lj1
[
j
][
i
]
=
lj1
[
i
][
j
];
lj2
[
j
][
i
]
=
lj2
[
i
][
j
];
lj3
[
j
][
i
]
=
lj3
[
i
][
j
];
lj4
[
j
][
i
]
=
lj4
[
i
][
j
];
offset
[
j
][
i
]
=
offset
[
i
][
j
];
return
cut
[
i
][
j
];
}
/* ----------------------------------------------------------------------
proc 0 writes to restart file
------------------------------------------------------------------------- */
void
PairGayBerne
::
write_restart
(
FILE
*
fp
)
{
write_restart_settings
(
fp
);
int
i
,
j
;
for
(
i
=
1
;
i
<=
atom
->
ntypes
;
i
++
)
{
fwrite
(
&
setwell
[
i
],
sizeof
(
int
),
1
,
fp
);
if
(
setwell
[
i
])
fwrite
(
&
well
[
i
][
0
],
sizeof
(
double
),
3
,
fp
);
for
(
j
=
i
;
j
<=
atom
->
ntypes
;
j
++
)
{
fwrite
(
&
setflag
[
i
][
j
],
sizeof
(
int
),
1
,
fp
);
if
(
setflag
[
i
][
j
])
{
fwrite
(
&
epsilon
[
i
][
j
],
sizeof
(
double
),
1
,
fp
);
fwrite
(
&
sigma
[
i
][
j
],
sizeof
(
double
),
1
,
fp
);
fwrite
(
&
cut
[
i
][
j
],
sizeof
(
double
),
1
,
fp
);
}
}
}
}
/* ----------------------------------------------------------------------
proc 0 reads from restart file, bcasts
------------------------------------------------------------------------- */
void
PairGayBerne
::
read_restart
(
FILE
*
fp
)
{
read_restart_settings
(
fp
);
allocate
();
int
i
,
j
;
int
me
=
comm
->
me
;
for
(
i
=
1
;
i
<=
atom
->
ntypes
;
i
++
)
{
if
(
me
==
0
)
fread
(
&
setwell
[
i
],
sizeof
(
int
),
1
,
fp
);
MPI_Bcast
(
&
setwell
[
i
],
1
,
MPI_INT
,
0
,
world
);
if
(
setwell
[
i
])
{
if
(
me
==
0
)
fread
(
&
well
[
i
][
0
],
sizeof
(
double
),
3
,
fp
);
MPI_Bcast
(
&
well
[
i
][
0
],
3
,
MPI_DOUBLE
,
0
,
world
);
}
for
(
j
=
i
;
j
<=
atom
->
ntypes
;
j
++
)
{
if
(
me
==
0
)
fread
(
&
setflag
[
i
][
j
],
sizeof
(
int
),
1
,
fp
);
MPI_Bcast
(
&
setflag
[
i
][
j
],
1
,
MPI_INT
,
0
,
world
);
if
(
setflag
[
i
][
j
])
{
if
(
me
==
0
)
{
fread
(
&
epsilon
[
i
][
j
],
sizeof
(
double
),
1
,
fp
);
fread
(
&
sigma
[
i
][
j
],
sizeof
(
double
),
1
,
fp
);
fread
(
&
cut
[
i
][
j
],
sizeof
(
double
),
1
,
fp
);
}
MPI_Bcast
(
&
epsilon
[
i
][
j
],
1
,
MPI_DOUBLE
,
0
,
world
);
MPI_Bcast
(
&
sigma
[
i
][
j
],
1
,
MPI_DOUBLE
,
0
,
world
);
MPI_Bcast
(
&
cut
[
i
][
j
],
1
,
MPI_DOUBLE
,
0
,
world
);
}
}
}
}
/* ----------------------------------------------------------------------
proc 0 writes to restart file
------------------------------------------------------------------------- */
void
PairGayBerne
::
write_restart_settings
(
FILE
*
fp
)
{
fwrite
(
&
gamma
,
sizeof
(
double
),
1
,
fp
);
fwrite
(
&
upsilon
,
sizeof
(
double
),
1
,
fp
);
fwrite
(
&
mu
,
sizeof
(
double
),
1
,
fp
);
fwrite
(
&
cut_global
,
sizeof
(
double
),
1
,
fp
);
fwrite
(
&
offset_flag
,
sizeof
(
int
),
1
,
fp
);
fwrite
(
&
mix_flag
,
sizeof
(
int
),
1
,
fp
);
}
/* ----------------------------------------------------------------------
proc 0 reads from restart file, bcasts
------------------------------------------------------------------------- */
void
PairGayBerne
::
read_restart_settings
(
FILE
*
fp
)
{
int
me
=
comm
->
me
;
if
(
me
==
0
)
{
fread
(
&
gamma
,
sizeof
(
double
),
1
,
fp
);
fread
(
&
upsilon
,
sizeof
(
double
),
1
,
fp
);
fread
(
&
mu
,
sizeof
(
double
),
1
,
fp
);
fread
(
&
cut_global
,
sizeof
(
double
),
1
,
fp
);
fread
(
&
offset_flag
,
sizeof
(
int
),
1
,
fp
);
fread
(
&
mix_flag
,
sizeof
(
int
),
1
,
fp
);
}
MPI_Bcast
(
&
gamma
,
1
,
MPI_DOUBLE
,
0
,
world
);
MPI_Bcast
(
&
upsilon
,
1
,
MPI_DOUBLE
,
0
,
world
);
MPI_Bcast
(
&
mu
,
1
,
MPI_DOUBLE
,
0
,
world
);
MPI_Bcast
(
&
cut_global
,
1
,
MPI_DOUBLE
,
0
,
world
);
MPI_Bcast
(
&
offset_flag
,
1
,
MPI_INT
,
0
,
world
);
MPI_Bcast
(
&
mix_flag
,
1
,
MPI_INT
,
0
,
world
);
}
/* ----------------------------------------------------------------------
proc 0 writes to data file
------------------------------------------------------------------------- */
void
PairGayBerne
::
write_data
(
FILE
*
fp
)
{
for
(
int
i
=
1
;
i
<=
atom
->
ntypes
;
i
++
)
fprintf
(
fp
,
"%d %g %g %g %g %g %g %g %g
\n
"
,
i
,
epsilon
[
i
][
i
],
sigma
[
i
][
i
],
pow
(
well
[
i
][
0
],
-
mu
),
pow
(
well
[
i
][
1
],
-
mu
),
pow
(
well
[
i
][
2
],
-
mu
),
pow
(
well
[
i
][
0
],
-
mu
),
pow
(
well
[
i
][
1
],
-
mu
),
pow
(
well
[
i
][
2
],
-
mu
));
}
/* ----------------------------------------------------------------------
proc 0 writes all pairs to data file
------------------------------------------------------------------------- */
void
PairGayBerne
::
write_data_all
(
FILE
*
fp
)
{
for
(
int
i
=
1
;
i
<=
atom
->
ntypes
;
i
++
)
for
(
int
j
=
i
;
j
<=
atom
->
ntypes
;
j
++
)
fprintf
(
fp
,
"%d %d %g %g %g %g %g %g %g %g %g
\n
"
,
i
,
j
,
epsilon
[
i
][
i
],
sigma
[
i
][
i
],
pow
(
well
[
i
][
0
],
-
mu
),
pow
(
well
[
i
][
1
],
-
mu
),
pow
(
well
[
i
][
2
],
-
mu
),
pow
(
well
[
j
][
0
],
-
mu
),
pow
(
well
[
j
][
1
],
-
mu
),
pow
(
well
[
j
][
2
],
-
mu
),
cut
[
i
][
j
]);
}
/* ----------------------------------------------------------------------
compute analytic energy, force (fforce), and torque (ttor & rtor)
based on rotation matrices a and precomputed matrices b and g
if newton is off, rtor is not calculated for ghost atoms
------------------------------------------------------------------------- */
double
PairGayBerne
::
gayberne_analytic
(
const
int
i
,
const
int
j
,
double
a1
[
3
][
3
],
double
a2
[
3
][
3
],
double
b1
[
3
][
3
],
double
b2
[
3
][
3
],
double
g1
[
3
][
3
],
double
g2
[
3
][
3
],
double
*
r12
,
const
double
rsq
,
double
*
fforce
,
double
*
ttor
,
double
*
rtor
)
{
double
tempv
[
3
],
tempv2
[
3
];
double
temp
[
3
][
3
];
double
temp1
,
temp2
,
temp3
;
int
*
type
=
atom
->
type
;
int
newton_pair
=
force
->
newton_pair
;
int
nlocal
=
atom
->
nlocal
;
double
r12hat
[
3
];
MathExtra
::
normalize3
(
r12
,
r12hat
);
double
r
=
sqrt
(
rsq
);
// compute distance of closest approach
double
g12
[
3
][
3
];
MathExtra
::
plus3
(
g1
,
g2
,
g12
);
double
kappa
[
3
];
int
ierror
=
MathExtra
::
mldivide3
(
g12
,
r12
,
kappa
);
if
(
ierror
)
error
->
all
(
FLERR
,
"Bad matrix inversion in mldivide3"
);
// tempv = G12^-1*r12hat
tempv
[
0
]
=
kappa
[
0
]
/
r
;
tempv
[
1
]
=
kappa
[
1
]
/
r
;
tempv
[
2
]
=
kappa
[
2
]
/
r
;
double
sigma12
=
MathExtra
::
dot3
(
r12hat
,
tempv
);
sigma12
=
pow
(
0.5
*
sigma12
,
-
0.5
);
double
h12
=
r
-
sigma12
;
// energy
// compute u_r
double
varrho
=
sigma
[
type
[
i
]][
type
[
j
]]
/
(
h12
+
gamma
*
sigma
[
type
[
i
]][
type
[
j
]]);
double
varrho6
=
pow
(
varrho
,
6.0
);
double
varrho12
=
varrho6
*
varrho6
;
double
u_r
=
4.0
*
epsilon
[
type
[
i
]][
type
[
j
]]
*
(
varrho12
-
varrho6
);
// compute eta_12
double
eta
=
2.0
*
lshape
[
type
[
i
]]
*
lshape
[
type
[
j
]];
double
det_g12
=
MathExtra
::
det3
(
g12
);
eta
=
pow
(
eta
/
det_g12
,
upsilon
);
// compute chi_12
double
b12
[
3
][
3
];
double
iota
[
3
];
MathExtra
::
plus3
(
b1
,
b2
,
b12
);
ierror
=
MathExtra
::
mldivide3
(
b12
,
r12
,
iota
);
if
(
ierror
)
error
->
all
(
FLERR
,
"Bad matrix inversion in mldivide3"
);
// tempv = G12^-1*r12hat
tempv
[
0
]
=
iota
[
0
]
/
r
;
tempv
[
1
]
=
iota
[
1
]
/
r
;
tempv
[
2
]
=
iota
[
2
]
/
r
;
double
chi
=
MathExtra
::
dot3
(
r12hat
,
tempv
);
chi
=
pow
(
chi
*
2.0
,
mu
);
// force
// compute dUr/dr
temp1
=
(
2.0
*
varrho12
*
varrho
-
varrho6
*
varrho
)
/
sigma
[
type
[
i
]][
type
[
j
]];
temp1
=
temp1
*
24.0
*
epsilon
[
type
[
i
]][
type
[
j
]];
double
u_slj
=
temp1
*
pow
(
sigma12
,
3.0
)
/
2.0
;
double
dUr
[
3
];
temp2
=
MathExtra
::
dot3
(
kappa
,
r12hat
);
double
uslj_rsq
=
u_slj
/
rsq
;
dUr
[
0
]
=
temp1
*
r12hat
[
0
]
+
uslj_rsq
*
(
kappa
[
0
]
-
temp2
*
r12hat
[
0
]);
dUr
[
1
]
=
temp1
*
r12hat
[
1
]
+
uslj_rsq
*
(
kappa
[
1
]
-
temp2
*
r12hat
[
1
]);
dUr
[
2
]
=
temp1
*
r12hat
[
2
]
+
uslj_rsq
*
(
kappa
[
2
]
-
temp2
*
r12hat
[
2
]);
// compute dChi_12/dr
double
dchi
[
3
];
temp1
=
MathExtra
::
dot3
(
iota
,
r12hat
);
temp2
=
-
4.0
/
rsq
*
mu
*
pow
(
chi
,(
mu
-
1.0
)
/
mu
);
dchi
[
0
]
=
temp2
*
(
iota
[
0
]
-
temp1
*
r12hat
[
0
]);
dchi
[
1
]
=
temp2
*
(
iota
[
1
]
-
temp1
*
r12hat
[
1
]);
dchi
[
2
]
=
temp2
*
(
iota
[
2
]
-
temp1
*
r12hat
[
2
]);
temp1
=
-
eta
*
u_r
;
temp2
=
eta
*
chi
;
fforce
[
0
]
=
temp1
*
dchi
[
0
]
-
temp2
*
dUr
[
0
];
fforce
[
1
]
=
temp1
*
dchi
[
1
]
-
temp2
*
dUr
[
1
];
fforce
[
2
]
=
temp1
*
dchi
[
2
]
-
temp2
*
dUr
[
2
];
// torque for particle 1 and 2
// compute dUr
tempv
[
0
]
=
-
uslj_rsq
*
kappa
[
0
];
tempv
[
1
]
=
-
uslj_rsq
*
kappa
[
1
];
tempv
[
2
]
=
-
uslj_rsq
*
kappa
[
2
];
MathExtra
::
vecmat
(
kappa
,
g1
,
tempv2
);
MathExtra
::
cross3
(
tempv
,
tempv2
,
dUr
);
double
dUr2
[
3
];
if
(
newton_pair
||
j
<
nlocal
)
{
MathExtra
::
vecmat
(
kappa
,
g2
,
tempv2
);
MathExtra
::
cross3
(
tempv
,
tempv2
,
dUr2
);
}
// compute d_chi
MathExtra
::
vecmat
(
iota
,
b1
,
tempv
);
MathExtra
::
cross3
(
tempv
,
iota
,
dchi
);
temp1
=
-
4.0
/
rsq
;
dchi
[
0
]
*=
temp1
;
dchi
[
1
]
*=
temp1
;
dchi
[
2
]
*=
temp1
;
double
dchi2
[
3
];
if
(
newton_pair
||
j
<
nlocal
)
{
MathExtra
::
vecmat
(
iota
,
b2
,
tempv
);
MathExtra
::
cross3
(
tempv
,
iota
,
dchi2
);
dchi2
[
0
]
*=
temp1
;
dchi2
[
1
]
*=
temp1
;
dchi2
[
2
]
*=
temp1
;
}
// compute d_eta
double
deta
[
3
];
deta
[
0
]
=
deta
[
1
]
=
deta
[
2
]
=
0.0
;
compute_eta_torque
(
g12
,
a1
,
shape2
[
type
[
i
]],
temp
);
temp1
=
-
eta
*
upsilon
;
for
(
int
m
=
0
;
m
<
3
;
m
++
)
{
for
(
int
y
=
0
;
y
<
3
;
y
++
)
tempv
[
y
]
=
temp1
*
temp
[
m
][
y
];
MathExtra
::
cross3
(
a1
[
m
],
tempv
,
tempv2
);
deta
[
0
]
+=
tempv2
[
0
];
deta
[
1
]
+=
tempv2
[
1
];
deta
[
2
]
+=
tempv2
[
2
];
}
// compute d_eta for particle 2
double
deta2
[
3
];
if
(
newton_pair
||
j
<
nlocal
)
{
deta2
[
0
]
=
deta2
[
1
]
=
deta2
[
2
]
=
0.0
;
compute_eta_torque
(
g12
,
a2
,
shape2
[
type
[
j
]],
temp
);
for
(
int
m
=
0
;
m
<
3
;
m
++
)
{
for
(
int
y
=
0
;
y
<
3
;
y
++
)
tempv
[
y
]
=
temp1
*
temp
[
m
][
y
];
MathExtra
::
cross3
(
a2
[
m
],
tempv
,
tempv2
);
deta2
[
0
]
+=
tempv2
[
0
];
deta2
[
1
]
+=
tempv2
[
1
];
deta2
[
2
]
+=
tempv2
[
2
];
}
}
// torque
temp1
=
u_r
*
eta
;
temp2
=
u_r
*
chi
;
temp3
=
chi
*
eta
;
ttor
[
0
]
=
(
temp1
*
dchi
[
0
]
+
temp2
*
deta
[
0
]
+
temp3
*
dUr
[
0
])
*
-
1.0
;
ttor
[
1
]
=
(
temp1
*
dchi
[
1
]
+
temp2
*
deta
[
1
]
+
temp3
*
dUr
[
1
])
*
-
1.0
;
ttor
[
2
]
=
(
temp1
*
dchi
[
2
]
+
temp2
*
deta
[
2
]
+
temp3
*
dUr
[
2
])
*
-
1.0
;
if
(
newton_pair
||
j
<
nlocal
)
{
rtor
[
0
]
=
(
temp1
*
dchi2
[
0
]
+
temp2
*
deta2
[
0
]
+
temp3
*
dUr2
[
0
])
*
-
1.0
;
rtor
[
1
]
=
(
temp1
*
dchi2
[
1
]
+
temp2
*
deta2
[
1
]
+
temp3
*
dUr2
[
1
])
*
-
1.0
;
rtor
[
2
]
=
(
temp1
*
dchi2
[
2
]
+
temp2
*
deta2
[
2
]
+
temp3
*
dUr2
[
2
])
*
-
1.0
;
}
return
temp1
*
chi
;
}
/* ----------------------------------------------------------------------
compute analytic energy, force (fforce), and torque (ttor)
between ellipsoid and lj particle
------------------------------------------------------------------------- */
double
PairGayBerne
::
gayberne_lj
(
const
int
i
,
const
int
j
,
double
a1
[
3
][
3
],
double
b1
[
3
][
3
],
double
g1
[
3
][
3
],
double
*
r12
,
const
double
rsq
,
double
*
fforce
,
double
*
ttor
)
{
double
tempv
[
3
],
tempv2
[
3
];
double
temp
[
3
][
3
];
double
temp1
,
temp2
,
temp3
;
int
*
type
=
atom
->
type
;
double
r12hat
[
3
];
MathExtra
::
normalize3
(
r12
,
r12hat
);
double
r
=
sqrt
(
rsq
);
// compute distance of closest approach
double
g12
[
3
][
3
];
g12
[
0
][
0
]
=
g1
[
0
][
0
]
+
shape2
[
type
[
j
]][
0
];
g12
[
1
][
1
]
=
g1
[
1
][
1
]
+
shape2
[
type
[
j
]][
0
];
g12
[
2
][
2
]
=
g1
[
2
][
2
]
+
shape2
[
type
[
j
]][
0
];
g12
[
0
][
1
]
=
g1
[
0
][
1
];
g12
[
1
][
0
]
=
g1
[
1
][
0
];
g12
[
0
][
2
]
=
g1
[
0
][
2
];
g12
[
2
][
0
]
=
g1
[
2
][
0
];
g12
[
1
][
2
]
=
g1
[
1
][
2
];
g12
[
2
][
1
]
=
g1
[
2
][
1
];
double
kappa
[
3
];
int
ierror
=
MathExtra
::
mldivide3
(
g12
,
r12
,
kappa
);
if
(
ierror
)
error
->
all
(
FLERR
,
"Bad matrix inversion in mldivide3"
);
// tempv = G12^-1*r12hat
tempv
[
0
]
=
kappa
[
0
]
/
r
;
tempv
[
1
]
=
kappa
[
1
]
/
r
;
tempv
[
2
]
=
kappa
[
2
]
/
r
;
double
sigma12
=
MathExtra
::
dot3
(
r12hat
,
tempv
);
sigma12
=
pow
(
0.5
*
sigma12
,
-
0.5
);
double
h12
=
r
-
sigma12
;
// energy
// compute u_r
double
varrho
=
sigma
[
type
[
i
]][
type
[
j
]]
/
(
h12
+
gamma
*
sigma
[
type
[
i
]][
type
[
j
]]);
double
varrho6
=
pow
(
varrho
,
6.0
);
double
varrho12
=
varrho6
*
varrho6
;
double
u_r
=
4.0
*
epsilon
[
type
[
i
]][
type
[
j
]]
*
(
varrho12
-
varrho6
);
// compute eta_12
double
eta
=
2.0
*
lshape
[
type
[
i
]]
*
lshape
[
type
[
j
]];
double
det_g12
=
MathExtra
::
det3
(
g12
);
eta
=
pow
(
eta
/
det_g12
,
upsilon
);
// compute chi_12
double
b12
[
3
][
3
];
double
iota
[
3
];
b12
[
0
][
0
]
=
b1
[
0
][
0
]
+
well
[
type
[
j
]][
0
];
b12
[
1
][
1
]
=
b1
[
1
][
1
]
+
well
[
type
[
j
]][
0
];
b12
[
2
][
2
]
=
b1
[
2
][
2
]
+
well
[
type
[
j
]][
0
];
b12
[
0
][
1
]
=
b1
[
0
][
1
];
b12
[
1
][
0
]
=
b1
[
1
][
0
];
b12
[
0
][
2
]
=
b1
[
0
][
2
];
b12
[
2
][
0
]
=
b1
[
2
][
0
];
b12
[
1
][
2
]
=
b1
[
1
][
2
];
b12
[
2
][
1
]
=
b1
[
2
][
1
];
ierror
=
MathExtra
::
mldivide3
(
b12
,
r12
,
iota
);
if
(
ierror
)
error
->
all
(
FLERR
,
"Bad matrix inversion in mldivide3"
);
// tempv = G12^-1*r12hat
tempv
[
0
]
=
iota
[
0
]
/
r
;
tempv
[
1
]
=
iota
[
1
]
/
r
;
tempv
[
2
]
=
iota
[
2
]
/
r
;
double
chi
=
MathExtra
::
dot3
(
r12hat
,
tempv
);
chi
=
pow
(
chi
*
2.0
,
mu
);
// force
// compute dUr/dr
temp1
=
(
2.0
*
varrho12
*
varrho
-
varrho6
*
varrho
)
/
sigma
[
type
[
i
]][
type
[
j
]];
temp1
=
temp1
*
24.0
*
epsilon
[
type
[
i
]][
type
[
j
]];
double
u_slj
=
temp1
*
pow
(
sigma12
,
3.0
)
/
2.0
;
double
dUr
[
3
];
temp2
=
MathExtra
::
dot3
(
kappa
,
r12hat
);
double
uslj_rsq
=
u_slj
/
rsq
;
dUr
[
0
]
=
temp1
*
r12hat
[
0
]
+
uslj_rsq
*
(
kappa
[
0
]
-
temp2
*
r12hat
[
0
]);
dUr
[
1
]
=
temp1
*
r12hat
[
1
]
+
uslj_rsq
*
(
kappa
[
1
]
-
temp2
*
r12hat
[
1
]);
dUr
[
2
]
=
temp1
*
r12hat
[
2
]
+
uslj_rsq
*
(
kappa
[
2
]
-
temp2
*
r12hat
[
2
]);
// compute dChi_12/dr
double
dchi
[
3
];
temp1
=
MathExtra
::
dot3
(
iota
,
r12hat
);
temp2
=
-
4.0
/
rsq
*
mu
*
pow
(
chi
,(
mu
-
1.0
)
/
mu
);
dchi
[
0
]
=
temp2
*
(
iota
[
0
]
-
temp1
*
r12hat
[
0
]);
dchi
[
1
]
=
temp2
*
(
iota
[
1
]
-
temp1
*
r12hat
[
1
]);
dchi
[
2
]
=
temp2
*
(
iota
[
2
]
-
temp1
*
r12hat
[
2
]);
temp1
=
-
eta
*
u_r
;
temp2
=
eta
*
chi
;
fforce
[
0
]
=
temp1
*
dchi
[
0
]
-
temp2
*
dUr
[
0
];
fforce
[
1
]
=
temp1
*
dchi
[
1
]
-
temp2
*
dUr
[
1
];
fforce
[
2
]
=
temp1
*
dchi
[
2
]
-
temp2
*
dUr
[
2
];
// torque for particle 1 and 2
// compute dUr
tempv
[
0
]
=
-
uslj_rsq
*
kappa
[
0
];
tempv
[
1
]
=
-
uslj_rsq
*
kappa
[
1
];
tempv
[
2
]
=
-
uslj_rsq
*
kappa
[
2
];
MathExtra
::
vecmat
(
kappa
,
g1
,
tempv2
);
MathExtra
::
cross3
(
tempv
,
tempv2
,
dUr
);
// compute d_chi
MathExtra
::
vecmat
(
iota
,
b1
,
tempv
);
MathExtra
::
cross3
(
tempv
,
iota
,
dchi
);
temp1
=
-
4.0
/
rsq
;
dchi
[
0
]
*=
temp1
;
dchi
[
1
]
*=
temp1
;
dchi
[
2
]
*=
temp1
;
// compute d_eta
double
deta
[
3
];
deta
[
0
]
=
deta
[
1
]
=
deta
[
2
]
=
0.0
;
compute_eta_torque
(
g12
,
a1
,
shape2
[
type
[
i
]],
temp
);
temp1
=
-
eta
*
upsilon
;
for
(
int
m
=
0
;
m
<
3
;
m
++
)
{
for
(
int
y
=
0
;
y
<
3
;
y
++
)
tempv
[
y
]
=
temp1
*
temp
[
m
][
y
];
MathExtra
::
cross3
(
a1
[
m
],
tempv
,
tempv2
);
deta
[
0
]
+=
tempv2
[
0
];
deta
[
1
]
+=
tempv2
[
1
];
deta
[
2
]
+=
tempv2
[
2
];
}
// torque
temp1
=
u_r
*
eta
;
temp2
=
u_r
*
chi
;
temp3
=
chi
*
eta
;
ttor
[
0
]
=
(
temp1
*
dchi
[
0
]
+
temp2
*
deta
[
0
]
+
temp3
*
dUr
[
0
])
*
-
1.0
;
ttor
[
1
]
=
(
temp1
*
dchi
[
1
]
+
temp2
*
deta
[
1
]
+
temp3
*
dUr
[
1
])
*
-
1.0
;
ttor
[
2
]
=
(
temp1
*
dchi
[
2
]
+
temp2
*
deta
[
2
]
+
temp3
*
dUr
[
2
])
*
-
1.0
;
return
temp1
*
chi
;
}
/* ----------------------------------------------------------------------
torque contribution from eta
computes trace in the last doc equation for the torque derivative
code comes from symbolic solver dump
m is g12, m2 is a_i, s is the shape for the particle
------------------------------------------------------------------------- */
void
PairGayBerne
::
compute_eta_torque
(
double
m
[
3
][
3
],
double
m2
[
3
][
3
],
double
*
s
,
double
ans
[
3
][
3
])
{
double
den
=
m
[
1
][
0
]
*
m
[
0
][
2
]
*
m
[
2
][
1
]
-
m
[
0
][
0
]
*
m
[
1
][
2
]
*
m
[
2
][
1
]
-
m
[
0
][
2
]
*
m
[
2
][
0
]
*
m
[
1
][
1
]
+
m
[
0
][
1
]
*
m
[
2
][
0
]
*
m
[
1
][
2
]
-
m
[
1
][
0
]
*
m
[
0
][
1
]
*
m
[
2
][
2
]
+
m
[
0
][
0
]
*
m
[
1
][
1
]
*
m
[
2
][
2
];
ans
[
0
][
0
]
=
s
[
0
]
*
(
m
[
1
][
2
]
*
m
[
0
][
1
]
*
m2
[
0
][
2
]
+
2.0
*
m
[
1
][
1
]
*
m
[
2
][
2
]
*
m2
[
0
][
0
]
-
m
[
1
][
1
]
*
m2
[
0
][
2
]
*
m
[
0
][
2
]
-
2.0
*
m
[
1
][
2
]
*
m2
[
0
][
0
]
*
m
[
2
][
1
]
+
m2
[
0
][
1
]
*
m
[
0
][
2
]
*
m
[
2
][
1
]
-
m2
[
0
][
1
]
*
m
[
0
][
1
]
*
m
[
2
][
2
]
-
m
[
1
][
0
]
*
m
[
2
][
2
]
*
m2
[
0
][
1
]
+
m
[
2
][
0
]
*
m
[
1
][
2
]
*
m2
[
0
][
1
]
+
m
[
1
][
0
]
*
m2
[
0
][
2
]
*
m
[
2
][
1
]
-
m2
[
0
][
2
]
*
m
[
2
][
0
]
*
m
[
1
][
1
])
/
den
;
ans
[
0
][
1
]
=
s
[
0
]
*
(
m
[
0
][
2
]
*
m2
[
0
][
0
]
*
m
[
2
][
1
]
-
m
[
2
][
2
]
*
m2
[
0
][
0
]
*
m
[
0
][
1
]
+
2.0
*
m
[
0
][
0
]
*
m
[
2
][
2
]
*
m2
[
0
][
1
]
-
m
[
0
][
0
]
*
m2
[
0
][
2
]
*
m
[
1
][
2
]
-
2.0
*
m
[
2
][
0
]
*
m
[
0
][
2
]
*
m2
[
0
][
1
]
+
m2
[
0
][
2
]
*
m
[
1
][
0
]
*
m
[
0
][
2
]
-
m
[
2
][
2
]
*
m
[
1
][
0
]
*
m2
[
0
][
0
]
+
m
[
2
][
0
]
*
m2
[
0
][
0
]
*
m
[
1
][
2
]
+
m
[
2
][
0
]
*
m2
[
0
][
2
]
*
m
[
0
][
1
]
-
m2
[
0
][
2
]
*
m
[
0
][
0
]
*
m
[
2
][
1
])
/
den
;
ans
[
0
][
2
]
=
s
[
0
]
*
(
m
[
0
][
1
]
*
m
[
1
][
2
]
*
m2
[
0
][
0
]
-
m
[
0
][
2
]
*
m2
[
0
][
0
]
*
m
[
1
][
1
]
-
m
[
0
][
0
]
*
m
[
1
][
2
]
*
m2
[
0
][
1
]
+
m
[
1
][
0
]
*
m
[
0
][
2
]
*
m2
[
0
][
1
]
-
m2
[
0
][
1
]
*
m
[
0
][
0
]
*
m
[
2
][
1
]
-
m
[
2
][
0
]
*
m
[
1
][
1
]
*
m2
[
0
][
0
]
+
2.0
*
m
[
1
][
1
]
*
m
[
0
][
0
]
*
m2
[
0
][
2
]
-
2.0
*
m
[
1
][
0
]
*
m2
[
0
][
2
]
*
m
[
0
][
1
]
+
m
[
1
][
0
]
*
m
[
2
][
1
]
*
m2
[
0
][
0
]
+
m
[
2
][
0
]
*
m2
[
0
][
1
]
*
m
[
0
][
1
])
/
den
;
ans
[
1
][
0
]
=
s
[
1
]
*
(
-
m
[
1
][
1
]
*
m2
[
1
][
2
]
*
m
[
0
][
2
]
+
2.0
*
m
[
1
][
1
]
*
m
[
2
][
2
]
*
m2
[
1
][
0
]
+
m
[
1
][
2
]
*
m
[
0
][
1
]
*
m2
[
1
][
2
]
-
2.0
*
m
[
1
][
2
]
*
m2
[
1
][
0
]
*
m
[
2
][
1
]
+
m2
[
1
][
1
]
*
m
[
0
][
2
]
*
m
[
2
][
1
]
-
m2
[
1
][
1
]
*
m
[
0
][
1
]
*
m
[
2
][
2
]
-
m
[
1
][
0
]
*
m
[
2
][
2
]
*
m2
[
1
][
1
]
+
m
[
2
][
0
]
*
m
[
1
][
2
]
*
m2
[
1
][
1
]
-
m2
[
1
][
2
]
*
m
[
2
][
0
]
*
m
[
1
][
1
]
+
m
[
1
][
0
]
*
m2
[
1
][
2
]
*
m
[
2
][
1
])
/
den
;
ans
[
1
][
1
]
=
s
[
1
]
*
(
m
[
0
][
2
]
*
m2
[
1
][
0
]
*
m
[
2
][
1
]
-
m
[
0
][
1
]
*
m
[
2
][
2
]
*
m2
[
1
][
0
]
+
2.0
*
m
[
2
][
2
]
*
m
[
0
][
0
]
*
m2
[
1
][
1
]
-
m2
[
1
][
2
]
*
m
[
0
][
0
]
*
m
[
1
][
2
]
-
2.0
*
m
[
2
][
0
]
*
m2
[
1
][
1
]
*
m
[
0
][
2
]
-
m
[
1
][
0
]
*
m
[
2
][
2
]
*
m2
[
1
][
0
]
+
m
[
2
][
0
]
*
m
[
1
][
2
]
*
m2
[
1
][
0
]
+
m
[
1
][
0
]
*
m2
[
1
][
2
]
*
m
[
0
][
2
]
-
m
[
0
][
0
]
*
m2
[
1
][
2
]
*
m
[
2
][
1
]
+
m2
[
1
][
2
]
*
m
[
0
][
1
]
*
m
[
2
][
0
])
/
den
;
ans
[
1
][
2
]
=
s
[
1
]
*
(
m
[
0
][
1
]
*
m
[
1
][
2
]
*
m2
[
1
][
0
]
-
m
[
0
][
2
]
*
m2
[
1
][
0
]
*
m
[
1
][
1
]
-
m
[
0
][
0
]
*
m
[
1
][
2
]
*
m2
[
1
][
1
]
+
m
[
1
][
0
]
*
m
[
0
][
2
]
*
m2
[
1
][
1
]
+
2.0
*
m
[
1
][
1
]
*
m
[
0
][
0
]
*
m2
[
1
][
2
]
-
m
[
0
][
0
]
*
m2
[
1
][
1
]
*
m
[
2
][
1
]
+
m
[
0
][
1
]
*
m
[
2
][
0
]
*
m2
[
1
][
1
]
-
m2
[
1
][
0
]
*
m
[
2
][
0
]
*
m
[
1
][
1
]
-
2.0
*
m
[
1
][
0
]
*
m
[
0
][
1
]
*
m2
[
1
][
2
]
+
m
[
1
][
0
]
*
m2
[
1
][
0
]
*
m
[
2
][
1
])
/
den
;
ans
[
2
][
0
]
=
s
[
2
]
*
(
-
m
[
1
][
1
]
*
m
[
0
][
2
]
*
m2
[
2
][
2
]
+
m
[
0
][
1
]
*
m
[
1
][
2
]
*
m2
[
2
][
2
]
+
2.0
*
m
[
1
][
1
]
*
m2
[
2
][
0
]
*
m
[
2
][
2
]
-
m
[
0
][
1
]
*
m2
[
2
][
1
]
*
m
[
2
][
2
]
+
m
[
0
][
2
]
*
m
[
2
][
1
]
*
m2
[
2
][
1
]
-
2.0
*
m2
[
2
][
0
]
*
m
[
2
][
1
]
*
m
[
1
][
2
]
-
m
[
1
][
0
]
*
m2
[
2
][
1
]
*
m
[
2
][
2
]
+
m
[
1
][
2
]
*
m
[
2
][
0
]
*
m2
[
2
][
1
]
-
m
[
1
][
1
]
*
m
[
2
][
0
]
*
m2
[
2
][
2
]
+
m
[
2
][
1
]
*
m
[
1
][
0
]
*
m2
[
2
][
2
])
/
den
;
ans
[
2
][
1
]
=
s
[
2
]
*-
(
m
[
0
][
1
]
*
m
[
2
][
2
]
*
m2
[
2
][
0
]
-
m
[
0
][
2
]
*
m2
[
2
][
0
]
*
m
[
2
][
1
]
-
2.0
*
m2
[
2
][
1
]
*
m
[
0
][
0
]
*
m
[
2
][
2
]
+
m
[
1
][
2
]
*
m2
[
2
][
2
]
*
m
[
0
][
0
]
+
2.0
*
m2
[
2
][
1
]
*
m
[
0
][
2
]
*
m
[
2
][
0
]
+
m
[
1
][
0
]
*
m2
[
2
][
0
]
*
m
[
2
][
2
]
-
m
[
1
][
0
]
*
m
[
0
][
2
]
*
m2
[
2
][
2
]
-
m
[
1
][
2
]
*
m
[
2
][
0
]
*
m2
[
2
][
0
]
+
m
[
0
][
0
]
*
m2
[
2
][
2
]
*
m
[
2
][
1
]
-
m2
[
2
][
2
]
*
m
[
0
][
1
]
*
m
[
2
][
0
])
/
den
;
ans
[
2
][
2
]
=
s
[
2
]
*
(
m
[
0
][
1
]
*
m
[
1
][
2
]
*
m2
[
2
][
0
]
-
m
[
0
][
2
]
*
m2
[
2
][
0
]
*
m
[
1
][
1
]
-
m
[
0
][
0
]
*
m
[
1
][
2
]
*
m2
[
2
][
1
]
+
m
[
1
][
0
]
*
m
[
0
][
2
]
*
m2
[
2
][
1
]
-
m
[
1
][
1
]
*
m
[
2
][
0
]
*
m2
[
2
][
0
]
-
m
[
2
][
1
]
*
m2
[
2
][
1
]
*
m
[
0
][
0
]
+
2.0
*
m
[
1
][
1
]
*
m2
[
2
][
2
]
*
m
[
0
][
0
]
+
m
[
2
][
1
]
*
m
[
1
][
0
]
*
m2
[
2
][
0
]
+
m
[
2
][
0
]
*
m
[
0
][
1
]
*
m2
[
2
][
1
]
-
2.0
*
m2
[
2
][
2
]
*
m
[
1
][
0
]
*
m
[
0
][
1
])
/
den
;
}
Event Timeline
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