From b8b52f6d0a35d8b1d3658c35e4d22b972dd8917b Mon Sep 17 00:00:00 2001
From: Thomas Baumann <39156931+brownbaerchen@users.noreply.github.com>
Date: Tue, 24 Feb 2026 14:45:38 +0100
Subject: [PATCH] Add MPI barrier before all tests

---
 heat/core/tests/test_suites/basic_test.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/heat/core/tests/test_suites/basic_test.py b/heat/core/tests/test_suites/basic_test.py
index 8e24e14241..de24e976a1 100644
--- a/heat/core/tests/test_suites/basic_test.py
+++ b/heat/core/tests/test_suites/basic_test.py
@@ -19,6 +19,7 @@ class TestCase(unittest.TestCase):
     envar: Optional[str] = None
 
     def setUp(self) -> None:
+        ht.MPI_WORLD.Barrier()
         seed(42)
 
     @classmethod