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added matrix[][] declaration and printing loop

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git-svn-id: svn://anubis/gvsu@243 45c1a28c-8058-47b2-ae61-ca45b979098e
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josh 2008-11-23 00:00:43 +00:00
parent de4d4a9968
commit ff390e079a
1 changed files with 29 additions and 4 deletions
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33
cs677/hw4/src/transpose.cc
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@ -37,23 +37,48 @@ inline void taskAllocate(int total_tasks, int total_workers, int this_id,
int main(int argc, char * argv[]) int main(int argc, char * argv[])
{ {
int my_rank; int my_rank;
int comm_size; int p; /* the number of processes */
int matrix_size = 100; int n = 10; /* the size of the matrix */
MPI_Init(&argc, &argv); MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank); MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size); MPI_Comm_size(MPI_COMM_WORLD, &p);
for (int i = 0; i < argc; i++) for (int i = 0; i < argc; i++)
{ {
if (!strncmp(argv[i], "-s", 2)) if (!strncmp(argv[i], "-s", 2))
{ {
matrix_size = atoi(strlen(argv[i]) > 2 n = atoi(strlen(argv[i]) > 2
? argv[i] + 2 ? argv[i] + 2
: argv[++i]); : argv[++i]);
} }
} }
int matrix[n][n];
int my_first_row;
int my_num_rows;
taskAllocate(n, p, my_rank, &my_first_row, &my_num_rows);
for (int row = my_first_row; row < my_first_row + my_num_rows; row++)
{
for (int j = 0; j < n; j++)
{
matrix[row][j] = 100 * row + j;
}
}
if (my_rank == 0)
{
cout << "Final matrix:" << endl;
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
cout << matrix[i][j] << " ";
}
cout << endl;
}
}
MPI_Finalize(); MPI_Finalize();
return 0; return 0;