/*!
* Classical Block Matrix Multiplication example
*
- * Authors: Quintin Jean-Noël
*/
+
#include "Matrix_init.h"
#include "Summa.h"
-#include "timer.h"
#include "xbt/log.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(MM_Summa,
"Messages specific for this msg example");
double *B_a , *B_b ; //matrix blocks
size_t err;
//double alpha = 1, beta = 1; //C := alpha * a * b + beta * c
- size_t B_proc_col, B_proc_row; // Number of bloc(row or col) on one processor
+ size_t B_proc_row; // Number of bloc(row or col) on one processor
+#ifndef CYCLIC
+ size_t B_proc_col;
B_proc_col = k_b / Block_size; // Number of block on one processor
+#endif
B_proc_row = k_a / Block_size; // Number of block on one processor
//size_t lda = k_a, ldb = n, ldc = n;
double time, computation_time = 0, communication_time = 0;
- struct timespec start_time, end_time; //time mesure
- struct timespec start_time_intern, end_time_intern; //time mesure
+ double start_time, end_time; //time mesure
+ double start_time_intern, end_time_intern; //time mesure
- get_time(&start_time);
+ start_time = MPI_Wtime();
/*-------------Distributed Matrix Multiplication algorithm-----------------*/
size_t iter;
MPI_Barrier(row_comm);
MPI_Barrier(col_comm);
- get_time(&start_time_intern);
+ start_time_intern = MPI_Wtime();
//Broadcast the row
if(size_row > 1){
MPI_Datatype * Block;
B_b = b + pos_b;
XBT_DEBUG("position of B_b: %zu \n", pos_b);
}
- get_time(&end_time_intern);
- communication_time += get_timediff(&start_time_intern,&end_time_intern);
+ end_time_intern = MPI_Wtime();
+ communication_time += start_time_intern - end_time_intern;
MPI_Barrier(row_comm);
MPI_Barrier(col_comm);
- get_time(&start_time_intern);
+ start_time_intern = MPI_Wtime();
XBT_DEBUG("execute Gemm number: %zu\n", iter);
//We have recieved a line of block and a colomn
// cblas_dgemm( CblasRowMajor, CblasNoTrans, CblasNoTrans,
for(k = 0; k < Block_size; k++)
c[i*ldc+j] += B_a[i*lda_local+k]*B_b[k*ldb_local+j];
- get_time(&end_time_intern);
- computation_time += get_timediff(&start_time_intern,&end_time_intern);
+ end_time_intern = MPI_Wtime();
+ computation_time += start_time_intern - end_time_intern;
}
MPI_Barrier(row_comm);
MPI_Barrier(col_comm);
- get_time(&end_time);
- time = get_timediff(&start_time,&end_time);
+ end_time = MPI_Wtime();
+ time = start_time - end_time;
printf("communication time: %le nanoseconds, "
"computation time: %le nanoseconds\n",
communication_time, computation_time);