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17 lines
269 B
17 lines
269 B
8 years ago
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#include <omp.h>
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#ifdef __cplusplus
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extern "C"
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#endif
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void
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scalprod(int n, double* x, double* y, double* res)
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{
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int i;
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double res_v = 0.;
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#pragma omp parallel for reduction(+ : res_v)
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for (i = 0; i < n; ++i) {
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res_v += x[i] * y[i];
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}
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*res = res_v;
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}
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