Fix latency time measurement

Author: astroC86

benchmarks/bench_load_latency.py

@@ -270,11 +270,12 @@ def print_run_settings(
     mm_begin_cpu = mm_begin_timestamp.cpu().numpy()
     mm_end_cpu = mm_end_timestamp.cpu().numpy()
 
-    gpu_freq  = iris.hip.get_wall_clock_rate(cur_rank) * 1e-3
+    gpu_freq  = iris.hip.get_wall_clock_rate(cur_rank) 
+
     for destination_rank in range(num_ranks):
         delta = mm_end_cpu[destination_rank, :] - mm_begin_cpu[destination_rank, :]
         avg_cc = float(delta.sum() / max(1, delta.size) / max(1, niter))
-        local_latency[destination_rank] = avg_cc / gpu_freq
+        local_latency[destination_rank] = avg_cc * 1e6 / gpu_freq
 
     latency_matrix = mpi_allgather(local_latency.cpu())