From 38b87de53f0eeba34e5c52c05dca1f48ccc40d53 Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Tue, 24 Oct 2023 10:56:07 -0400
Subject: [PATCH] This works around a stacksize limit on AMD GPU

---
 Grid/algorithms/multigrid/GeneralCoarsenedMatrix.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Grid/algorithms/multigrid/GeneralCoarsenedMatrix.h b/Grid/algorithms/multigrid/GeneralCoarsenedMatrix.h
index 08d2cde4..fccb8330 100644
--- a/Grid/algorithms/multigrid/GeneralCoarsenedMatrix.h
+++ b/Grid/algorithms/multigrid/GeneralCoarsenedMatrix.h
@@ -436,8 +436,8 @@ public:
   }
   void ExchangeCoarseLinks(void){
     for(int p=0;p<geom.npoint;p++){
-      _A[p] = Cell.Exchange(_A[p]);
-      _Adag[p]= Cell.Exchange(_Adag[p]);
+      _A[p] = Cell.ExchangePeriodic(_A[p]);
+      _Adag[p]= Cell.ExchangePeriodic(_Adag[p]);
     }
   }
   virtual  void Mdiag    (const Field &in, Field &out){ assert(0);};