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TestUnorderedMapPerformance.hpp
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rLAMMPS lammps
TestUnorderedMapPerformance.hpp
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//@HEADER
// ************************************************************************
//
// Kokkos v. 2.0
// Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact H. Carter Edwards (hcedwar@sandia.gov)
//
// ************************************************************************
//@HEADER
#ifndef KOKKOS_TEST_UNORDERED_MAP_PERFORMANCE_HPP
#define KOKKOS_TEST_UNORDERED_MAP_PERFORMANCE_HPP
#include <impl/Kokkos_Timer.hpp>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <sstream>
namespace
Perf
{
template
<
typename
Device
,
bool
Near
>
struct
UnorderedMapTest
{
typedef
Device
execution_space
;
typedef
Kokkos
::
UnorderedMap
<
uint32_t
,
uint32_t
,
execution_space
>
map_type
;
typedef
typename
map_type
::
histogram_type
histogram_type
;
struct
value_type
{
uint32_t
failed_count
;
uint32_t
max_list
;
};
uint32_t
capacity
;
uint32_t
inserts
;
uint32_t
collisions
;
double
seconds
;
map_type
map
;
histogram_type
histogram
;
UnorderedMapTest
(
uint32_t
arg_capacity
,
uint32_t
arg_inserts
,
uint32_t
arg_collisions
)
:
capacity
(
arg_capacity
)
,
inserts
(
arg_inserts
)
,
collisions
(
arg_collisions
)
,
seconds
(
0
)
,
map
(
capacity
)
,
histogram
(
map
.
get_histogram
())
{
Kokkos
::
Impl
::
Timer
wall_clock
;
wall_clock
.
reset
();
value_type
v
=
{};
int
loop_count
=
0
;
do
{
++
loop_count
;
v
=
value_type
();
Kokkos
::
parallel_reduce
(
inserts
,
*
this
,
v
);
if
(
v
.
failed_count
>
0u
)
{
const
uint32_t
new_capacity
=
map
.
capacity
()
+
((
map
.
capacity
()
*
3ull
)
/
20u
)
+
v
.
failed_count
/
collisions
;
map
.
rehash
(
new_capacity
);
}
}
while
(
v
.
failed_count
>
0u
);
seconds
=
wall_clock
.
seconds
();
switch
(
loop_count
)
{
case
1u
:
std
::
cout
<<
"
\033
[0;32m"
<<
loop_count
<<
"
\033
[0m "
;
break
;
case
2u
:
std
::
cout
<<
"
\033
[1;31m"
<<
loop_count
<<
"
\033
[0m "
;
break
;
default
:
std
::
cout
<<
"
\033
[0;31m"
<<
loop_count
<<
"
\033
[0m "
;
break
;
}
std
::
cout
<<
std
::
setprecision
(
2
)
<<
std
::
fixed
<<
std
::
setw
(
5
)
<<
(
1e9
*
(
seconds
/
(
inserts
)))
<<
"; "
<<
std
::
flush
;
histogram
.
calculate
();
Device
::
fence
();
}
void
print
(
std
::
ostream
&
metrics_out
,
std
::
ostream
&
length_out
,
std
::
ostream
&
distance_out
,
std
::
ostream
&
block_distance_out
)
{
metrics_out
<<
map
.
capacity
()
<<
" , "
;
metrics_out
<<
inserts
/
collisions
<<
" , "
;
metrics_out
<<
(
100.0
*
inserts
/
collisions
)
/
map
.
capacity
()
<<
" , "
;
metrics_out
<<
inserts
<<
" , "
;
metrics_out
<<
(
map
.
failed_insert
()
?
"true"
:
"false"
)
<<
" , "
;
metrics_out
<<
collisions
<<
" , "
;
metrics_out
<<
1e9
*
(
seconds
/
inserts
)
<<
" , "
;
metrics_out
<<
seconds
<<
std
::
endl
;
length_out
<<
map
.
capacity
()
<<
" , "
;
length_out
<<
((
100.0
*
inserts
/
collisions
)
/
map
.
capacity
())
<<
" , "
;
length_out
<<
collisions
<<
" , "
;
histogram
.
print_length
(
length_out
);
distance_out
<<
map
.
capacity
()
<<
" , "
;
distance_out
<<
((
100.0
*
inserts
/
collisions
)
/
map
.
capacity
())
<<
" , "
;
distance_out
<<
collisions
<<
" , "
;
histogram
.
print_distance
(
distance_out
);
block_distance_out
<<
map
.
capacity
()
<<
" , "
;
block_distance_out
<<
((
100.0
*
inserts
/
collisions
)
/
map
.
capacity
())
<<
" , "
;
block_distance_out
<<
collisions
<<
" , "
;
histogram
.
print_block_distance
(
block_distance_out
);
}
KOKKOS_INLINE_FUNCTION
void
init
(
value_type
&
v
)
const
{
v
.
failed_count
=
0
;
v
.
max_list
=
0
;
}
KOKKOS_INLINE_FUNCTION
void
join
(
volatile
value_type
&
dst
,
const
volatile
value_type
&
src
)
const
{
dst
.
failed_count
+=
src
.
failed_count
;
dst
.
max_list
=
src
.
max_list
<
dst
.
max_list
?
dst
.
max_list
:
src
.
max_list
;
}
KOKKOS_INLINE_FUNCTION
void
operator
()(
uint32_t
i
,
value_type
&
v
)
const
{
const
uint32_t
key
=
Near
?
i
/
collisions
:
i
%
(
inserts
/
collisions
);
typename
map_type
::
insert_result
result
=
map
.
insert
(
key
,
i
);
v
.
failed_count
+=
!
result
.
failed
()
?
0
:
1
;
v
.
max_list
=
result
.
list_position
()
<
v
.
max_list
?
v
.
max_list
:
result
.
list_position
();
}
};
//#define KOKKOS_COLLECT_UNORDERED_MAP_METRICS
template
<
typename
Device
,
bool
Near
>
void
run_performance_tests
(
std
::
string
const
&
base_file_name
)
{
#if defined(KOKKOS_COLLECT_UNORDERED_MAP_METRICS)
std
::
string
metrics_file_name
=
base_file_name
+
std
::
string
(
"-metrics.csv"
);
std
::
string
length_file_name
=
base_file_name
+
std
::
string
(
"-length.csv"
);
std
::
string
distance_file_name
=
base_file_name
+
std
::
string
(
"-distance.csv"
);
std
::
string
block_distance_file_name
=
base_file_name
+
std
::
string
(
"-block_distance.csv"
);
std
::
ofstream
metrics_out
(
metrics_file_name
.
c_str
(),
std
::
ofstream
::
out
);
std
::
ofstream
length_out
(
length_file_name
.
c_str
(),
std
::
ofstream
::
out
);
std
::
ofstream
distance_out
(
distance_file_name
.
c_str
(),
std
::
ofstream
::
out
);
std
::
ofstream
block_distance_out
(
block_distance_file_name
.
c_str
(),
std
::
ofstream
::
out
);
/*
const double test_ratios[] = {
0.50
, 0.75
, 0.80
, 0.85
, 0.90
, 0.95
, 1.00
, 1.25
, 2.00
};
*/
const
double
test_ratios
[]
=
{
1.00
};
const
int
num_ratios
=
sizeof
(
test_ratios
)
/
sizeof
(
double
);
/*
const uint32_t collisions[] {
1
, 4
, 16
, 64
};
*/
const
uint32_t
collisions
[]
=
{
16
};
const
int
num_collisions
=
sizeof
(
collisions
)
/
sizeof
(
uint32_t
);
// set up file headers
metrics_out
<<
"Capacity , Unique , Percent Full , Attempted Inserts , Failed Inserts , Collision Ratio , Nanoseconds/Inserts, Seconds"
<<
std
::
endl
;
length_out
<<
"Capacity , Percent Full , "
;
distance_out
<<
"Capacity , Percent Full , "
;
block_distance_out
<<
"Capacity , Percent Full , "
;
for
(
int
i
=
0
;
i
<
100
;
++
i
)
{
length_out
<<
i
<<
" , "
;
distance_out
<<
i
<<
" , "
;
block_distance_out
<<
i
<<
" , "
;
}
length_out
<<
"
\b\b\b
"
<<
std
::
endl
;
distance_out
<<
"
\b\b\b
"
<<
std
::
endl
;
block_distance_out
<<
"
\b\b\b
"
<<
std
::
endl
;
Kokkos
::
Impl
::
Timer
wall_clock
;
for
(
int
i
=
0
;
i
<
num_collisions
;
++
i
)
{
wall_clock
.
reset
();
std
::
cout
<<
"Collisions: "
<<
collisions
[
i
]
<<
std
::
endl
;
for
(
int
j
=
0
;
j
<
num_ratios
;
++
j
)
{
std
::
cout
<<
std
::
setprecision
(
1
)
<<
std
::
fixed
<<
std
::
setw
(
5
)
<<
(
100.0
*
test_ratios
[
j
])
<<
"% "
<<
std
::
flush
;
for
(
uint32_t
capacity
=
1
<<
14
;
capacity
<
1
<<
25
;
capacity
=
capacity
<<
1
)
{
uint32_t
inserts
=
static_cast
<
uint32_t
>
(
test_ratios
[
j
]
*
(
capacity
));
std
::
cout
<<
capacity
<<
std
::
flush
;
UnorderedMapTest
<
Device
,
Near
>
test
(
capacity
,
inserts
*
collisions
[
i
],
collisions
[
i
]);
Device
::
fence
();
test
.
print
(
metrics_out
,
length_out
,
distance_out
,
block_distance_out
);
}
std
::
cout
<<
"
\b\b
"
<<
std
::
endl
;
}
std
::
cout
<<
" "
<<
wall_clock
.
seconds
()
<<
" secs"
<<
std
::
endl
;
}
metrics_out
.
close
();
length_out
.
close
();
distance_out
.
close
();
block_distance_out
.
close
();
#else
(
void
)
base_file_name
;
std
::
cout
<<
"skipping test"
<<
std
::
endl
;
#endif
}
}
// namespace Perf
#endif
//KOKKOS_TEST_UNORDERED_MAP_PERFORMANCE_HPP
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