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lal_neighbor_shared.cpp
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Created
Sat, Oct 12, 13:23
Size
2 KB
Mime Type
text/x-c
Expires
Mon, Oct 14, 13:23 (2 d)
Engine
blob
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Raw Data
Handle
21299237
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rLAMMPS lammps
lal_neighbor_shared.cpp
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/***************************************************************************
neighbor_shared.cpp
-------------------
W. Michael Brown (ORNL)
Class for management of data shared by all neighbor lists
__________________________________________________________________________
This file is part of the LAMMPS Accelerator Library (LAMMPS_AL)
__________________________________________________________________________
begin :
email : brownw@ornl.gov
***************************************************************************/
#include "lal_precision.h"
#include "lal_neighbor_shared.h"
#ifdef USE_OPENCL
#include "neighbor_cpu_cl.h"
#include "neighbor_gpu_cl.h"
#else
#include "neighbor_cpu_ptx.h"
#include "neighbor_gpu_ptx.h"
#endif
using
namespace
LAMMPS_AL
;
void
NeighborShared
::
clear
()
{
if
(
_compiled
)
{
if
(
_gpu_nbor
>
0
)
{
if
(
_gpu_nbor
==
1
)
{
k_cell_id
.
clear
();
k_cell_counts
.
clear
();
}
k_build_nbor
.
clear
();
k_transpose
.
clear
();
k_special
.
clear
();
delete
build_program
;
}
else
{
k_nbor
.
clear
();
delete
nbor_program
;
}
_compiled
=
false
;
}
}
void
NeighborShared
::
compile_kernels
(
UCL_Device
&
dev
,
const
int
gpu_nbor
)
{
if
(
_compiled
)
return
;
_gpu_nbor
=
gpu_nbor
;
std
::
string
flags
=
"-cl-fast-relaxed-math -cl-mad-enable "
+
std
::
string
(
OCL_PRECISION_COMPILE
)
+
" -D"
+
std
::
string
(
OCL_VENDOR
);
if
(
_gpu_nbor
==
0
)
{
nbor_program
=
new
UCL_Program
(
dev
);
nbor_program
->
load_string
(
neighbor_cpu
,
flags
.
c_str
());
k_nbor
.
set_function
(
*
nbor_program
,
"kernel_unpack"
);
}
else
{
build_program
=
new
UCL_Program
(
dev
);
build_program
->
load_string
(
neighbor_gpu
,
flags
.
c_str
());
if
(
_gpu_nbor
==
1
)
{
k_cell_id
.
set_function
(
*
build_program
,
"calc_cell_id"
);
k_cell_counts
.
set_function
(
*
build_program
,
"kernel_calc_cell_counts"
);
}
k_build_nbor
.
set_function
(
*
build_program
,
"calc_neigh_list_cell"
);
k_transpose
.
set_function
(
*
build_program
,
"transpose"
);
k_special
.
set_function
(
*
build_program
,
"kernel_special"
);
neigh_tex
.
get_texture
(
*
build_program
,
"neigh_tex"
);
}
_compiled
=
true
;
}
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