Initial commit

openMP_homework/Makefile

+# Makefile 
+
+# Source file
+SRC = openMP_integration.c
+
+# Compiler
+CC = gcc
+
+# Executable name
+EXE = ./out
+
+all: $(EXE) 
+
+$(EXE): $(SRC)
+	$(CC) -fopenmp -o $(EXE) $(SRC) 
+
+clean:
+	rm -f $(EXE)
+
+run:
+	$(EXE) 

openMP_homework/openMP_integration.c

+#include <stdio.h>
+#include <omp.h>
+
+#define N 100000000 // Number of rectangles for the approximation
+
+double calculate_partial_area(double x, double width) {
+    double height = x * x;
+    return width * height;
+}
+
+int main() {
+    double total_area = 0.0;
+    double width = 1.0 / N;
+    
+    #pragma omp parallel for reduction(+:total_area)
+    for (int i = 0; i < N; ++i) {
+        double x = (i + 0.5) * width; // Midpoint of the rectangle
+        total_area += calculate_partial_area(x, width);
+    }
+
+    printf("Numerical integration using OpenMP:\n");
+    printf("Total area under the curve (X^2) for %d rectangles: %f\n", N, total_area);
+
+
+    return 0;
+}
+