use starpu time, in order to get simgrid time

examples/cholesky/cholesky_grain_tag.c

@@ -300,17 +300,17 @@ static void initialize_system(float **A, unsigned dim, unsigned pinned)
 
 int cholesky_grain(float *matA, unsigned size, unsigned ld, unsigned nblocks, unsigned nbigblocks, unsigned pinned)
 {
-	struct timeval start;
-	struct timeval end;
+	double start;
+	double end;
 	int ret;
 
-	gettimeofday(&start, NULL);
+	start = starpu_timing_now();
 
 	ret = cholesky_grain_rec(matA, size, ld, nblocks, nbigblocks, 0);
 
-	gettimeofday(&end, NULL);
+	end = starpu_timing_now();
 
-	double timing = (double)((end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec));
+	double timing = end - start;
 	FPRINTF(stderr, "Computation took (in ms)\n");
 	FPRINTF(stdout, "%2.2f\n", timing/1000);
 

examples/cholesky/cholesky_implicit.c

@@ -75,14 +75,14 @@ static void callback_turn_spmd_on(void *arg __attribute__ ((unused)))
 static int _cholesky(starpu_data_handle_t dataA, unsigned nblocks)
 {
 	int ret;
-	struct timeval start;
-	struct timeval end;
+	double start;
+	double end;
 
 	unsigned i,j,k;
 
 	int prio_level = noprio?STARPU_DEFAULT_PRIO:STARPU_MAX_PRIO;
 
-	gettimeofday(&start, NULL);
+	start = starpu_timing_now();
 
 	if (bound)
 		starpu_bound_start(0, 0);
@@ -135,9 +135,9 @@ static int _cholesky(starpu_data_handle_t dataA, unsigned nblocks)
 	if (bound)
 		starpu_bound_stop();
 
-	gettimeofday(&end, NULL);
+	end = starpu_timing_now();
 
-	double timing = (double)((end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec));
+	double timing = end - start;
 	FPRINTF(stderr, "Computation took (in ms)\n");
 	FPRINTF(stdout, "%2.2f\n", timing/1000);
 

examples/cholesky/cholesky_tag.c

@@ -175,15 +175,15 @@ static void create_task_22(starpu_data_handle_t dataA, unsigned k, unsigned i, u
 
 static void _cholesky(starpu_data_handle_t dataA, unsigned nblocks)
 {
-	struct timeval start;
-	struct timeval end;
+	double start;
+	double end;
 
 	struct starpu_task *entry_task = NULL;
 
 	/* create all the DAG nodes */
 	unsigned i,j,k;
 
-	gettimeofday(&start, NULL);
+	start = starpu_timing_now();
 
 	for (k = 0; k < nblocks; k++)
 	{
@@ -230,10 +230,10 @@ static void _cholesky(starpu_data_handle_t dataA, unsigned nblocks)
 
 	starpu_data_unpartition(dataA, 0);
 
-	gettimeofday(&end, NULL);
+	end = starpu_timing_now();
 
 
-	double timing = (double)((end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec));
+	double timing = end - start;
 	FPRINTF(stderr, "Computation took (in ms)\n");
 	FPRINTF(stdout, "%2.2f\n", timing/1000);
 

examples/cholesky/cholesky_tile_tag.c

@@ -195,8 +195,8 @@ static int cholesky_no_stride(void)
 {
 	int ret;
 
-	struct timeval start;
-	struct timeval end;
+	double start;
+	double end;
 
 	struct starpu_task *entry_task = NULL;
 
@@ -234,7 +234,7 @@ static int cholesky_no_stride(void)
 	}
 
 	/* schedule the codelet */
-	gettimeofday(&start, NULL);
+	start = starpu_timing_now();
 	ret = starpu_task_submit(entry_task);
 	if (ret == -ENODEV) return 77;
 	STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_submit");
@@ -242,9 +242,9 @@ static int cholesky_no_stride(void)
 	/* stall the application until the end of computations */
 	starpu_tag_wait(TAG11(nblocks-1));
 
-	gettimeofday(&end, NULL);
+	end = starpu_timing_now();
 
-	double timing = (double)((end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec));
+	double timing = end - start;
 	FPRINTF(stderr, "Computation took (in ms)\n");
 	FPRINTF(stdout, "%2.2f\n", timing/1000);