From 906b78811b59bafe75249a1e458e0b4f618ef5c9 Mon Sep 17 00:00:00 2001
From: nmeyer-ur <nils.meyer@ur.de>
Date: Wed, 22 Jul 2020 08:57:01 +0200
Subject: [PATCH] exit in Init when using --comms-overlap

---
 Grid/util/Init.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Grid/util/Init.cc b/Grid/util/Init.cc
index 656e29a9..a508f5a6 100644
--- a/Grid/util/Init.cc
+++ b/Grid/util/Init.cc
@@ -318,6 +318,13 @@ void Grid_init(int *argc,char ***argv)
     Grid_debug_handler_init();
   }
 
+#if defined(A64FX)
+  if( GridCmdOptionExists(*argv,*argv+*argc,"--comms-overlap") ){
+    std::cout << "Option --comms-overlap currently not supported on QPACE4. Exiting."
+    exit(EXIT_FAILURE);
+  }
+#endif
+
   //////////////////////////////////////////////////////////
   // Memory manager
   //////////////////////////////////////////////////////////