X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/29aece352b6242fed59d733f405a0c3df0839ca5..cef9c4a5d0ba0ea7298147feae9b1164a289f6b7:/examples/smpi/MM/Summa.c

diff --git a/examples/smpi/MM/Summa.c b/examples/smpi/MM/Summa.c
index 94588e54be..12c2370626 100644
--- a/examples/smpi/MM/Summa.c
+++ b/examples/smpi/MM/Summa.c
@@ -23,8 +23,11 @@ inline double Summa(
   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;
@@ -122,7 +125,7 @@ inline double Summa(
       XBT_DEBUG("position of B_b: %zu \n", pos_b);
     }
     end_time_intern = MPI_Wtime();
-    communication_time += start_time_intern - end_time_intern;
+    communication_time += end_time_intern - start_time_intern;
 
     MPI_Barrier(row_comm);
     MPI_Barrier(col_comm);
@@ -139,16 +142,16 @@ inline double Summa(
           c[i*ldc+j] += B_a[i*lda_local+k]*B_b[k*ldb_local+j];
 
     end_time_intern = MPI_Wtime();
-    computation_time += start_time_intern - end_time_intern;
+    computation_time += end_time_intern - start_time_intern;
 
   }
   MPI_Barrier(row_comm);
   MPI_Barrier(col_comm);
 
   end_time = MPI_Wtime();
-  time = start_time - end_time;
-  printf("communication time: %le nanoseconds, "
-         "computation time: %le nanoseconds\n",
+  time = end_time - start_time ;
+  printf("communication time: %le seconds, "
+         "computation time: %le seconds\n",
          communication_time, computation_time);