Working

FinalProject/main.cpp

@@ -1,31 +1,76 @@
+#include <fstream>
 #include <iostream>
 #include <mpi.h>
 #include <stdlib.h>
 #include <time.h>
+#include <vector>
+
 #define MCW MPI_COMM_WORLD
+
 using namespace std;
 
+struct Matrix{
+  int M, N;
+  double** matrix;
+};
+
 //Problem size
 const int N = 10;
-
+vector<Matrix> matricies;
 //global variables
 double A[N][N];
 double B[N][N];
 double AB[N][N];
 double AB_serial[N][N];
 
+void fill_matrices();
+void print_matrix(double mat[][N]);
+void serial_version();
+void compute_interval(int start, int interval);
+void multiplyMatrix(int rank, int size);
+void read_in_matrices();
+
+
+
+int main(int argc, char** argv){
+  int rank, size;
+  MPI_Init(&argc, &argv);
+  MPI_Comm_rank(MCW, &rank);
+  MPI_Comm_size(MCW, &size);
+  multiplyMatrix(rank, size);
+  if(!rank)
+    read_in_matrices();
+  MPI_Finalize();
+}
+
+
+void read_in_matrices(){
+  for(int i = 0; i < 2; i++) {
+    Matrix* matrix = new Matrix;
+    ifstream f("Matrix.txt");
+    f >> matrix->M >> matrix->N;
+    // Allocate memory
+    matrix->matrix = new double *[matrix->M];
+    for (int i = 0; i < matrix->M; ++i)
+      matrix->matrix[i] = new double[N];
+
+    for (int i = 0; i < matrix->M; i++)
+      for (int j = 0; j < matrix->N; j++)
+        f >> matrix->matrix[i][j];
+    matricies.push_back(*matrix);
+  }
+}
 //Function to fill matrices at random
 void fill_matrices(){
   srand(time(NULL));
 
-    for(int i = 0; i <N; i++){
-      for (int j = 0; j < N; j++){
-	A[i][j] = rand() %4;
-	B[i][j] = rand() %4;
-      }
+  for(int i = 0; i <N; i++){
+    for (int j = 0; j < N; j++){
+      A[i][j] = rand() %4;
+      B[i][j] = rand() %4;
     }
+  }
 }
-
 //Function to print matrix
 void print_matrix(double mat[][N]){
   for (int i = 0; i < N; i++){
@@ -36,31 +81,28 @@ void print_matrix(double mat[][N]){
   }
   cout << endl;
 }
-
 //Serial version of solution
 void serial_version(){
   for (int i = 0; i <N; i++){
     for (int j = 0; j < N;j++){
       AB_serial[i][j] = 0;
       for (int k = 0; k <N; k++){
-	AB_serial[i][j] += A[i][k]*B[k][j];
+        AB_serial[i][j] += A[i][k]*B[k][j];
       }
     }
   }
 }
-
 //Compute interval multiplication
 void compute_interval(int start,int interval){
   for(int i = start; i <start+interval;i++){
     for (int j = 0; j <N; j++){
       AB[i][j] = 0;
       for (int k = 0; k <N; k++){
-	AB[i][j] += A[i][k]*B[k][j];
+        AB[i][j] += A[i][k]*B[k][j];
       }
     }
   }
 }
-
 void multiplyMatrix(int rank, int size){
   //timing variables
   double time1,time2,time3;
@@ -119,17 +161,3 @@ void multiplyMatrix(int rank, int size){
     print_matrix(AB_serial);
   }
 }
-
-int main(int argc, char** argv){
-  int interval, remainder, rank, size;
-  MPI_Init(&argc, &argv);
-  MPI_Comm_rank(MCW, &rank);
-  MPI_Comm_size(MCW, &size);
-  multiplyMatrix(rank, size);
-
-
-
-
-
-  MPI_Finalize();
-}