From 0470b995abbf03f839731ecab6ec8f372ea42193 Mon Sep 17 00:00:00 2001
From: Yuki Iwai <yuki.iwai.tz@gmail.com>
Date: Sat, 12 Oct 2024 20:19:53 +0900
Subject: [PATCH] Add obviously verifications if all Ranks reached final phase
 in the pi example

Signed-off-by: Yuki Iwai <yuki.iwai.tz@gmail.com>
---
 examples/v2beta1/pi/pi.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/examples/v2beta1/pi/pi.cc b/examples/v2beta1/pi/pi.cc
index 381cea0b6..fed4573a5 100644
--- a/examples/v2beta1/pi/pi.cc
+++ b/examples/v2beta1/pi/pi.cc
@@ -46,6 +46,7 @@ int main(int argc, char *argv[]) {
     double pi = 4 * (double)total_count / (double)(worker_tests) / (double)(workers);
     printf("pi is approximately %.16lf\n", pi);
   }
+  MPI_Barrier(MPI_COMM_WORLD);
   MPI_Finalize();
   return 0;
 }