From 83a3ab6b6ffa91482d9e2047dd9a6ab182d5ce80 Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Fri, 4 Apr 2025 16:44:40 -0400
Subject: [PATCH] Barrier -- not sure 100% this was needed

---
 Grid/stencil/Stencil.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Grid/stencil/Stencil.h b/Grid/stencil/Stencil.h
index e1a2b08c..0cd9850e 100644
--- a/Grid/stencil/Stencil.h
+++ b/Grid/stencil/Stencil.h
@@ -446,6 +446,7 @@ public:
     Communicate();
     CommsMergeSHM(compress);
     CommsMerge(compress);
+    accelerator_barrier();
   }
 
   template<class compressor> int HaloGatherDir(const Lattice<vobj> &source,compressor &compress,int point,int & face_idx)