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Implement dot kernel in OpenMP 3

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This commit is contained in:
Tom Deakin 2016-10-14 15:05:06 +01:00
parent 08fe695d51
commit abe423ac6b
2 changed files with 16 additions and 0 deletions
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15
OMP3Stream.cpp
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@ -91,6 +91,21 @@ void OMP3Stream<T>::triad()
}
}
template <class T>
T OMP3Stream<T>::dot()
{
T sum = 0.0;
#pragma omp parallel for reduction(+:sum)
for (int i = 0; i < array_size; i++)
{
sum += a[i] * b[i];
}
return sum;
}
void listDevices(void)
{
std::cout << "0: CPU" << std::endl;

1
OMP3Stream.h
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@ -33,6 +33,7 @@ class OMP3Stream : public Stream<T>
virtual void add() override;
virtual void mul() override;
virtual void triad() override;
virtual T dot() override;
virtual void write_arrays(const std::vector<T>& a, const std::vector<T>& b, const std::vector<T>& c) override;
virtual void read_arrays(std::vector<T>& a, std::vector<T>& b, std::vector<T>& c) override;