75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
//===-- bench_example - benchmark the examples ---------------*- C++ -*-===//
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//
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// Part of the cppduals project.
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// https://gitlab.com/tesch1/cppduals
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//
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// See https://gitlab.com/tesch1/cppduals/blob/master/LICENSE.txt for
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// license information.
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//
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// (c)2019 Michael Tesch. tesch1@gmail.com
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//
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#include <complex>
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#include <duals/dual>
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#include "benchmark/benchmark.h"
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using namespace duals;
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template <class T> T f(T x) { return pow(x,pow(x,x)); }
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template <class T> T df(T x) { return pow(x,-1. + x + pow(x,x)) * (1. + x*log(x) + x*pow(log(x),2.)); }
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template <class T> T ddf(T x) { return (pow(x,pow(x,x)) * pow(pow(x,x - 1.) + pow(x,x)*log(x)*(log(x) + 1.), 2.) +
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pow(x,pow(x,x)) * (pow(x,x - 1.) * log(x) +
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pow(x,x - 1.) * (log(x) + 1.) +
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pow(x,x - 1.) * ((x - 1.)/x + log(x)) +
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pow(x,x) * log(x) * pow(log(x) + 1., 2.) )); }
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template <class T>
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void F(benchmark::State& state) {
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T x = state.range(0);
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for (auto _ : state) { benchmark::DoNotOptimize(f(x)); }
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}
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template <class T>
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void DF(benchmark::State& state) {
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T x = state.range(0);
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for (auto _ : state) { benchmark::DoNotOptimize(df(x)); }
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}
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template <class T>
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void DDF(benchmark::State& state) {
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T x = state.range(0);
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for (auto _ : state) { benchmark::DoNotOptimize(ddf(x)); }
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}
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template <class T>
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void dF(benchmark::State& state) {
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T x = state.range(0);
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for (auto _ : state) { benchmark::DoNotOptimize(f(dual<T>(x,1))); }
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}
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template <class T>
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void ddF(benchmark::State& state) {
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T x = state.range(0);
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for (auto _ : state) {
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benchmark::DoNotOptimize(f(duals::dual<duals::dual<T>>(x+1_e,1+0_e)));
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}
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}
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BENCHMARK_TEMPLATE(F, float) ->Arg(2); // V_RANGE(1,NF)
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BENCHMARK_TEMPLATE(DF, float)->Arg(2); // V_RANGE(1,NF)
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BENCHMARK_TEMPLATE(DDF, float)->Arg(2); // V_RANGE(1,NF)
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BENCHMARK_TEMPLATE(dF, float)->Arg(2); // V_RANGE(1,NF)
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BENCHMARK_TEMPLATE(ddF, float)->Arg(2); // V_RANGE(1,NF)
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#define QUOTE(...) STRFY(__VA_ARGS__)
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#define STRFY(...) #__VA_ARGS__
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int main(int argc, char** argv)
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{
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std::cout << "OPT_FLAGS=" << QUOTE(OPT_FLAGS) << "\n";
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::benchmark::Initialize(&argc, argv);
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::benchmark::RunSpecifiedBenchmarks();
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}
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