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xtensor/benchmark/benchmark_lambda_expressions.cpp at master · xtensor-stack/xtensor · GitHub
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benchmark_lambda_expressions.cpp
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/*
**************************************************************************
* Copyright (c) 2016, Johan Mabille, Sylvain Corlay and Wolf Vollprecht *
* *
* Distributed under the terms of the BSD 3-Clause License. *
* *
* The full license is in the file LICENSE, distributed with this software. *
***************************************************************************
*/
#
include
<
benchmark/benchmark.h
>
#
include
"
xtensor/containers/xarray.hpp
"
#
include
"
xtensor/containers/xtensor.hpp
"
#
include
"
xtensor/core/xmath.hpp
"
#
include
"
xtensor/core/xnoalias.hpp
"
#
include
"
xtensor/generators/xbuilder.hpp
"
namespace
xt
{
void
lambda_cube
(benchmark::State& state)
{
xtensor<
double
,
2
> x = empty<
double
>({state.
range
(
0
), state.
range
(
0
)});
for
(
auto
_ : state)
{
xtensor<
double
,
2
> res =
xt::cube
(x);
benchmark::DoNotOptimize
(res.
data
());
}
}
void
xexpression_cube
(benchmark::State& state)
{
xtensor<
double
,
2
> x = empty<
double
>({state.
range
(
0
), state.
range
(
0
)});
for
(
auto
_ : state)
{
xtensor<
double
,
2
> res = x * x * x;
benchmark::DoNotOptimize
(res.
data
());
}
}
void
lambda_higher_pow
(benchmark::State& state)
{
xtensor<
double
,
2
> x = empty<
double
>({state.
range
(
0
), state.
range
(
0
)});
for
(
auto
_ : state)
{
xtensor<
double
,
2
> res = xt::pow<
16
>(x);
benchmark::DoNotOptimize
(res.
data
());
}
}
void
xsimd_higher_pow
(benchmark::State& state)
{
xtensor<
double
,
2
> x = empty<
double
>({state.
range
(
0
), state.
range
(
0
)});
for
(
auto
_ : state)
{
xtensor<
double
,
2
> res =
xt::pow
(x,
16
);
benchmark::DoNotOptimize
(res.
data
());
}
}
void
xexpression_higher_pow
(benchmark::State& state)
{
xtensor<
double
,
2
> x = empty<
double
>({state.
range
(
0
), state.
range
(
0
)});
for
(
auto
_ : state)
{
xtensor<
double
,
2
> res = x * x * x * x * x * x * x * x * x * x * x * x * x * x * x * x;
benchmark::DoNotOptimize
(res.
data
());
}
}
BENCHMARK
(lambda_cube)->
Range
(
32
,
32
<<
3
);
BENCHMARK
(xexpression_cube)->
Range
(
32
,
32
<<
3
);
BENCHMARK
(lambda_higher_pow)->
Range
(
32
,
32
<<
3
);
BENCHMARK
(xsimd_higher_pow)->
Range
(
32
,
32
<<
3
);
BENCHMARK
(xexpression_higher_pow)->
Range
(
32
,
32
<<
3
);
}
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