Bausager
6b8a7ab582
Sync public mirror / sync (push) Failing after 29s
almost complete. Need to doublecheck names for functions in *_serial.h
43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
#pragma once
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#include <cstdint> //uint64_t
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#include <stdexcept> // std::runtime_error
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#include "../utils/vector.h"
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#include "../utils/matrix.h"
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namespace numerics::detail{
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// ---------------- Vector * Vector ----------------
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template <typename T>
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inline T dot_serial(const utils::Vector<T>& v, const utils::Vector<T>& p) {
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const uint64_t N = v.size();
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if (N != p.size()) {
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throw std::runtime_error("dot_serial: dimension mismatch");
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}
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T dot_product = T{0};
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for (uint64_t i = 0; i < N; ++i){
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dot_product += v[i]*p[i];
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}
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return dot_product;
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}
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// ---------------- Matrix * Vector ----------------
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template <typename T>
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inline utils::Vector<T> dot_serial(const utils::Matrix<T>& A, const utils::Vector<T>& v) {
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const uint64_t rows = A.rows();
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const uint64_t cols = A.cols();
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if (cols != v.size()) {
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throw std::runtime_error("dot_serial: dimension mismatch");
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}
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utils::Vector<T> dot_product(rows, T{0});
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for (uint64_t j = 0; j < cols; ++j){
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for (uint64_t i = 0; i < rows; ++i){
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dot_product[i] += A(i,j)*v[j];
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}
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}
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return dot_product;
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}
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} // namespace numerics
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