diff --git a/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/Know-how/utils.h b/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/Know-how/utils.h
index 723522df3cbffe4ff01dbdedda958a4990c68a68..44835d4c87ae4f2b202c870d581d4d7d15cb4c91 100644
--- a/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/Know-how/utils.h
+++ b/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/Know-how/utils.h
@@ -77,7 +77,7 @@ static inline double ComputPointDistance(Point *pointA, Point *pointB)
     double horizontal, vertical, pointDis;
     horizontal = pointA->x - pointB->x;
     vertical = pointA->y - pointB->y;
-    pointDis = sqrt((horizontal * horizontal) + (vertical + vertical));
+    pointDis = sqrt((horizontal * horizontal) + (vertical * vertical));
     return pointDis;
 }
 
diff --git a/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/omp-mpi/utils.h b/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/omp-mpi/utils.h
index 453f21ff0ec001b598f9d64a835e4c308585df11..9838a3cb992d4fa3dec6c3d1d60e1e721e6100f3 100644
--- a/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/omp-mpi/utils.h
+++ b/examples/mpi/devkitdemo-main/Hyper_tuner/testdemo/omp-mpi/utils.h
@@ -91,13 +91,13 @@ void set_thread_affinity(uint16_t core_id)
 
         if(sched_setaffinity(0, sizeof(cpu_mask), &cpu_mask)==-1)
         {
-          printf("set cpu affinity faild ...\n");
+          printf("set cpu affinity failed ...\n");
           exit(1);
         }
        
         if(sched_getaffinity(0, sizeof(get), &get)==-1)
         {
-           printf("get affinity faild...\n");
+           printf("get affinity failed...\n");
            exit(1);
         }
 }