refactor

almost complete. Need to doublecheck names for functions in *_serial.h

include/numerics/detail/dot_serial.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <cstdint> //uint64_t
+#include <stdexcept> // std::runtime_error
+
+#include "../utils/vector.h"
+#include "../utils/matrix.h"
+
+namespace numerics::detail{
+
+	// ---------------- Vector * Vector ----------------
+	template <typename T>
+	inline T dot_serial(const utils::Vector<T>& v, const utils::Vector<T>& p) {
+	    const uint64_t N = v.size();
+	    if (N != p.size()) {
+	        throw std::runtime_error("dot_serial: dimension mismatch");
+	    }
+	    T dot_product = T{0};
+		for (uint64_t i = 0; i < N; ++i){
+			dot_product += v[i]*p[i];
+		}
+		return dot_product;
+	}
+	
+	// ---------------- Matrix * Vector ----------------
+	template <typename T>
+	inline utils::Vector<T> dot_serial(const utils::Matrix<T>& A, const utils::Vector<T>& v) {
+	    const uint64_t rows = A.rows();
+	    const uint64_t cols = A.cols();
+	    if (cols != v.size()) {
+	        throw std::runtime_error("dot_serial: dimension mismatch");
+	    }
+	    utils::Vector<T> dot_product(rows, T{0});
+		for (uint64_t j = 0; j < cols; ++j){
+			for (uint64_t i = 0; i < rows; ++i){
+				dot_product[i] += A(i,j)*v[j];
+			}
+		}
+		return dot_product;
+	}
+} // namespace numerics
+

include/numerics/detail/equal_serial.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <cstdint> //uint64_t
+//#include <stdexcept> // std::runtime_error
+
+#include "../utils/vector.h"
+#include "../utils/matrix.h"
+
+namespace numerics::detail{
+	
+	// ---------------- Matrix ----------------
+	template <typename T>
+	inline bool equal_serial(const utils::Matrix<T>& A, const utils::Matrix<T> & B) {
+	    const uint64_t rows = A.rows();
+	    const uint64_t cols = A.cols();
+
+	    if ((rows != B.rows()) || (cols != B.cols())){
+	    	return false;
+	    }
+
+		for (uint64_t i = 0; i < rows; ++i){
+			for (uint64_t j = 0; j < cols; ++j){
+				if (A(i,j) != B(i,j)){
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+	// ---------------- Vector ----------------
+	template <typename T>
+	inline bool equal_serial(const utils::Vector<T>& v, const utils::Vector<T>& p) {
+		const uint64_t N = v.size();
+		if (N != p.size()){
+			return false;
+		}
+		for (uint64_t i = 0; i < N; ++i){
+			if ((v[i] != p[i])){
+				return false;
+			}
+		}
+		return true;
+	}
+
+} // namespace numerics
+

include/numerics/detail/isclose_serial.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <cstdint> //uint64_t
+//#include <stdexcept> // std::runtime_error
+
+#include "../utils/vector.h"
+#include "../utils/matrix.h"
+#include <cmath> // std::abs
+
+
+namespace numerics::detail{
+	
+	// ---------------- Matrix ----------------
+	template <typename T>
+	inline bool isclose_serial(const utils::Matrix<T>& A, const utils::Matrix<T> & B, const T tol = T{1e-5}) {
+	    const uint64_t rows = A.rows();
+	    const uint64_t cols = A.cols();
+
+	    if ((rows != B.rows()) || (cols != B.cols())){
+	    	return false;
+	    }
+
+		for (uint64_t i = 0; i < rows; ++i){
+			for (uint64_t j = 0; j < cols; ++j){
+				if (static_cast<T>(std::abs(A(i,j)-B(i,j))) > tol){
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+	// ---------------- Vector ----------------
+	template <typename T>
+	inline bool isclose_serial(const utils::Vector<T>& v, const utils::Vector<T>& p, const T tol = T{1e-5}) {
+		const uint64_t N = v.size();
+		if (N != p.size()){
+			return false;
+		}
+		for (uint64_t i = 0; i < N; ++i){
+			if (static_cast<T>(std::abs((v[i]-p[i]))) > tol){
+				return false;
+			}
+		}
+		return true;
+	}
+
+} // namespace numerics
+

include/numerics/detail/matmul_serial.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <cstdint> //uint64_t
+#include <stdexcept> // std::runtime_error
+
+#include "../utils/vector.h"
+#include "../utils/matrix.h"
+
+namespace numerics::detail{
+
+// ---------------- Matrix * Matrix ----------------
+	template <typename T>
+	inline utils::Matrix<T> matmul_serial(const utils::Matrix<T>& A, const utils::Matrix<T>& B){
+		const uint64_t m = A.rows();
+		const uint64_t n = A.cols(); // also B.rows()
+		const uint64_t p = B.cols();
+		if(n != B.rows()){
+			throw std::runtime_error("matmul: dimension mismatch");
+		}
+		T tmp;
+		utils::Matrix<T> C(m, p, T{0});
+		for (uint64_t i = 0; i < m; ++i){
+			for (uint64_t j = 0; j < n; ++j){
+				tmp = A(i,j);
+				for (uint64_t k = 0; k < p; ++k){
+					C(i,k) += tmp * B(j,k);
+				}
+			}
+		}
+		return C;
+	}
+
+
+} // namespace numerics
+

include/numerics/detail/random_serial.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <cstdint> //uint64_t
+//#include <stdexcept> // std::runtime_error
+#include <random>
+#include <type_traits>
+
+
+#include "../utils/vector.h"
+#include "../utils/matrix.h"
+
+namespace numerics::detail{
+
+    // Shared engine
+    inline std::mt19937& rng() {
+        static std::random_device rd;
+        static std::mt19937 gen(rd());
+        return gen;
+    }
+
+    // Integral overload
+    template <
+        typename T,
+        typename std::enable_if<std::is_integral<T>::value, int>::type = 0
+    >
+    inline T random(const T low, const T high) {
+        std::uniform_int_distribution<T> dist(low, high);
+        return dist(rng());
+    }
+
+    // Floating-point overload
+    template <
+        typename T,
+        typename std::enable_if<std::is_floating_point<T>::value, int>::type = 0
+    >
+    inline T random(const T low, const T high) {
+        std::uniform_real_distribution<T> dist(low, high);
+        return dist(rng());
+    }
+	
+	// ---------------- Matrix ----------------
+	template <typename T>
+	inline void inplace_random_serial(utils::Matrix<T>& A, const T low, const T high) {
+	    const uint64_t rows = A.rows();
+	    const uint64_t cols = A.cols();
+		for (uint64_t i = 0; i < rows; ++i){
+			for (uint64_t j = 0; j < cols; ++j){
+				A(i,j) = random(low, high);
+			}
+		}
+	}
+
+	// ---------------- Vector ----------------
+	template <typename T>
+	inline void inplace_random_serial(utils::Vector<T>& v, const T low, const T high) {
+		const uint64_t N = v.size();
+		for (uint64_t i = 0; i < N; ++i){
+			v[i] = random(low, high);
+		}
+	}
+
+} // namespace numerics
+