bradybod-usu/cs5500_parallel_prog
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bbod
2020-04-15 15:44:09 -06:00
parent c598d552d7
commit e658d06970
4 changed files with 98 additions and 20 deletions
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33
FinalProject/main.cpp
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@@ -17,9 +17,9 @@ std::vector<std::vector<double> > AB_serial = std::vector<std::vector<double> >(
void print_matrix(std::vector<std::vector<double> > mat);
void serial_version();
void serial_matrix_multiplication();
void compute_interval(int start, int interval);
void multiplyMatrix(int rank, int size);
void parallel_matrix_multiplication(int rank, int size);
void read_in_matrices();
void print_help();
void determinant();
@@ -54,7 +54,7 @@ int main(int argc, char** argv) {
MPI_Barrier(MCW);
MPI_Bcast(&user_input, 1, MPI_INT, 0, MCW );
if (user_input == '1')
multiplyMatrix(rank, size);
parallel_matrix_multiplication(rank, size);
else if (user_input == '2'){
if(!rank)
reduced_row();
@@ -186,7 +186,7 @@ void print_matrix(std::vector<std::vector<double> >mat) {
myfile << endl;
cout << endl;
}
void serial_version(){
void serial_matrix_multiplication(){
for (int i = 0; i <N; i++){
for (int j = 0; j < N;j++){
AB_serial[i][j] = 0;
@@ -206,7 +206,7 @@ void compute_interval(int start,int interval){
}
}
}
void multiplyMatrix(int rank, int size){
void parallel_matrix_multiplication(int rank, int size){
double time1,time2,time3;
if(!rank){
read_in_matrices();
@@ -229,7 +229,6 @@ void multiplyMatrix(int rank, int size){
int remainder = N % size;
MPI_Bcast(&interval, 1, MPI_INT, 0, MCW);
MPI_Bcast(&remainder, 1, MPI_INT, 0, MCW);
// Record start time
MPI_Barrier(MCW);
time1 = MPI_Wtime();
if (!rank) {
@@ -259,23 +258,23 @@ void multiplyMatrix(int rank, int size){
time2 = MPI_Wtime();
if (!rank){
serial_version();
serial_matrix_multiplication();
time3 = MPI_Wtime();
cout << size << " processors computed in time: " << time2-time1 << endl;
cout << "Serial version computed in time: " << time3-time2 << endl;
cout << size << " processors completed in: " << time2-time1 << " seconds"<<endl;
cout << "Serial version completed in: " << time3-time2 << " seconds"<<endl;
cout << "Matrix A: " << endl;
myfile << size << " processors computed in time: " << time2-time1 << endl;
myfile << "Serial version computed in time: " << time3-time2 << endl;
myfile << size << " processors completed in: " << time2-time1 << " seconds"<<endl;
myfile << "Serial version completed in: " << time3-time2 << " seconds"<<endl;
myfile << "Matrix A: " << endl;
print_matrix(A);
cout << "multiplied Matrix B:" << endl;
myfile << "multiplied Matrix B:" << endl;
cout << "Matrix B:" << endl;
myfile << "Matrix B:" << endl;
print_matrix(B);
cout << "serial version gives:" << endl;
myfile << "serial version gives:" << endl;
cout << "serial version AB:" << endl;
myfile << "serial version AB:" << endl;
print_matrix(AB_serial);
cout << "gives matrix AB:" << endl;
myfile << "gives matrix AB:" << endl;
cout << "parallel matrix AB:" << endl;
myfile << "parallel matrix AB:" << endl;
print_matrix(AB);
}