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Hadrons: scheduler heuristic benchmark

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This commit is contained in:
Antonin Portelli 2016-12-13 19:02:32 +00:00
parent de8f80cf94
commit 16693bd69d
1 changed files with 23 additions and 0 deletions
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23
extras/Hadrons/GeneticScheduler.hpp
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@ -59,6 +59,8 @@ public:
int getMinValue(void);
// breed a new generation
void nextGeneration(void);
// heuristic benchmarks
void benchmarkCrossover(const unsigned int nIt);
// print population
friend std::ostream & operator<<(std::ostream &out,
const GeneticScheduler<T> &s)
@ -299,6 +301,27 @@ void GeneticScheduler<T>::mutation(Gene &m, const Gene &c)
}
}
template <typename T>
void GeneticScheduler<T>::benchmarkCrossover(const unsigned int nIt)
{
Gene p1, p2, c1, c2;
double neg = 0., eq = 0., pos = 0., total;
int improvement;
LOG(Message) << "Benchmarking crossover..." << std::endl;
for (unsigned int i = 0; i < nIt; ++i)
{
p1 = graph_.topoSort(gen_);
p2 = graph_.topoSort(gen_);
crossover(c1, c2, p1, p2);
improvement = (func_(c1) + func_(c2) - func_(p1) - func_(p2))/2;
if (improvement < 0) neg++; else if (improvement == 0) eq++; else pos++;
}
total = neg + eq + pos;
LOG(Message) << " -: " << neg/total << " =: " << eq/total
<< " +: " << pos/total << std::endl;
}
END_HADRONS_NAMESPACE
#endif // Hadrons_GeneticScheduler_hpp_