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rLAMMPS lammps
fix.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.
------------------------------------------------------------------------- */
#ifndef LMP_FIX_H
#define LMP_FIX_H
#include "lmptype.h"
#include "pointers.h"
namespace
LAMMPS_NS
{
class
Fix
:
protected
Pointers
{
public:
char
*
id
,
*
style
;
int
igroup
,
groupbit
;
int
restart_global
;
// 1 if Fix saves global state, 0 if not
int
restart_peratom
;
// 1 if Fix saves peratom state, 0 if not
int
force_reneighbor
;
// 1 if Fix forces reneighboring, 0 if not
int
box_change
;
// 1 if Fix changes box, 0 if not
int
box_change_size
;
// 1 if Fix changes box size, 0 if not
int
box_change_shape
;
// 1 if Fix changes box shape, 0 if not
bigint
next_reneighbor
;
// next timestep to force a reneighboring
int
thermo_energy
;
// 1 if fix_modify enabled ThEng, 0 if not
int
nevery
;
// how often to call an end_of_step fix
int
rigid_flag
;
// 1 if Fix integrates rigid bodies, 0 if not
int
virial_flag
;
// 1 if Fix contributes to virial, 0 if not
int
no_change_box
;
// 1 if cannot swap ortho <-> triclinic
int
time_integrate
;
// 1 if fix performs time integration, 0 if no
int
time_depend
;
// 1 if fix is timestep dependent, 0 if not
int
create_attribute
;
// 1 if fix stores attributes that need
// setting when a new atom is created
int
restart_pbc
;
// 1 if fix moves atoms (except integrate)
// so write_restart must remap to PBC
int
scalar_flag
;
// 0/1 if compute_scalar() function exists
int
vector_flag
;
// 0/1 if compute_vector() function exists
int
array_flag
;
// 0/1 if compute_array() function exists
int
size_vector
;
// length of global vector
int
size_array_rows
;
// rows in global array
int
size_array_cols
;
// columns in global array
int
global_freq
;
// frequency s/v data is available at
int
peratom_flag
;
// 0/1 if per-atom data is stored
int
size_peratom_cols
;
// 0 = vector, N = columns in peratom array
int
peratom_freq
;
// frequency per-atom data is available at
int
local_flag
;
// 0/1 if local data is stored
int
size_local_rows
;
// rows in local vector or array
int
size_local_cols
;
// 0 = vector, N = columns in local array
int
local_freq
;
// frequency local data is available at
int
extscalar
;
// 0/1 if global scalar is intensive/extensive
int
extvector
;
// 0/1/-1 if global vector is all int/ext/extlist
int
*
extlist
;
// list of 0/1 int/ext for each vec component
int
extarray
;
// 0/1 if global array is intensive/extensive
double
*
vector_atom
;
// computed per-atom vector
double
**
array_atom
;
// computed per-atom array
double
*
vector_local
;
// computed local vector
double
**
array_local
;
// computed local array
int
comm_forward
;
// size of forward communication (0 if none)
int
comm_reverse
;
// size of reverse communication (0 if none)
double
virial
[
6
];
// accumlated virial
double
**
vatom
;
// accumulated per-atom virial
int
INITIAL_INTEGRATE
,
POST_INTEGRATE
;
// mask settings
int
PRE_EXCHANGE
,
PRE_NEIGHBOR
;
int
PRE_FORCE
,
POST_FORCE
,
FINAL_INTEGRATE
,
END_OF_STEP
,
THERMO_ENERGY
;
int
INITIAL_INTEGRATE_RESPA
,
POST_INTEGRATE_RESPA
;
int
PRE_FORCE_RESPA
,
POST_FORCE_RESPA
,
FINAL_INTEGRATE_RESPA
;
int
MIN_PRE_EXCHANGE
,
MIN_PRE_FORCE
,
MIN_POST_FORCE
,
MIN_ENERGY
;
int
POST_RUN
;
Fix
(
class
LAMMPS
*
,
int
,
char
**
);
virtual
~
Fix
();
void
modify_params
(
int
,
char
**
);
virtual
int
setmask
()
=
0
;
virtual
void
init
()
{}
virtual
void
init_list
(
int
,
class
NeighList
*
)
{}
virtual
void
setup
(
int
)
{}
virtual
void
setup_pre_force
(
int
)
{}
virtual
void
min_setup
(
int
)
{}
virtual
void
initial_integrate
(
int
)
{}
virtual
void
post_integrate
()
{}
virtual
void
pre_exchange
()
{}
virtual
void
pre_neighbor
()
{}
virtual
void
pre_force
(
int
)
{}
virtual
void
post_force
(
int
)
{}
virtual
void
final_integrate
()
{}
virtual
void
end_of_step
()
{}
virtual
void
post_run
()
{}
virtual
void
write_restart
(
FILE
*
)
{}
virtual
void
restart
(
char
*
)
{}
virtual
void
grow_arrays
(
int
)
{}
virtual
void
copy_arrays
(
int
,
int
)
{}
virtual
void
set_arrays
(
int
)
{}
virtual
int
pack_exchange
(
int
,
double
*
)
{
return
0
;}
virtual
int
unpack_exchange
(
int
,
double
*
)
{
return
0
;}
virtual
int
pack_restart
(
int
,
double
*
)
{
return
0
;}
virtual
void
unpack_restart
(
int
,
int
)
{}
virtual
int
size_restart
(
int
)
{
return
0
;}
virtual
int
maxsize_restart
()
{
return
0
;}
virtual
void
setup_pre_force_respa
(
int
,
int
)
{}
virtual
void
initial_integrate_respa
(
int
,
int
,
int
)
{}
virtual
void
post_integrate_respa
(
int
,
int
)
{}
virtual
void
pre_force_respa
(
int
,
int
,
int
)
{}
virtual
void
post_force_respa
(
int
,
int
,
int
)
{}
virtual
void
final_integrate_respa
(
int
,
int
)
{}
virtual
void
min_setup_pre_force
(
int
)
{}
virtual
void
min_pre_exchange
()
{}
virtual
void
min_pre_force
(
int
)
{}
virtual
void
min_post_force
(
int
)
{}
virtual
double
min_energy
(
double
*
)
{
return
0.0
;}
virtual
void
min_store
()
{}
virtual
void
min_clearstore
()
{}
virtual
void
min_pushstore
()
{}
virtual
void
min_popstore
()
{}
virtual
int
min_reset_ref
()
{
return
0
;}
virtual
void
min_step
(
double
,
double
*
)
{}
virtual
double
max_alpha
(
double
*
)
{
return
0.0
;}
virtual
int
min_dof
()
{
return
0
;}
virtual
int
pack_comm
(
int
,
int
*
,
double
*
,
int
,
int
*
)
{
return
0
;}
virtual
void
unpack_comm
(
int
,
int
,
double
*
)
{}
virtual
int
pack_reverse_comm
(
int
,
int
,
double
*
)
{
return
0
;}
virtual
void
unpack_reverse_comm
(
int
,
int
*
,
double
*
)
{}
virtual
double
compute_scalar
()
{
return
0.0
;}
virtual
double
compute_vector
(
int
)
{
return
0.0
;}
virtual
double
compute_array
(
int
,
int
)
{
return
0.0
;}
virtual
int
dof
(
int
)
{
return
0
;}
virtual
void
deform
(
int
)
{}
virtual
void
reset_target
(
double
)
{}
virtual
void
reset_dt
()
{}
virtual
int
modify_param
(
int
,
char
**
)
{
return
0
;}
virtual
double
memory_usage
()
{
return
0.0
;}
protected:
int
evflag
;
int
vflag_global
,
vflag_atom
;
int
maxvatom
;
void
v_setup
(
int
);
void
v_tally
(
int
,
int
*
,
double
,
double
*
);
};
}
#endif
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