From fde368c74ce762560bfb17a58b167a35d033d724 Mon Sep 17 00:00:00 2001
From: AlexanderSinn <alexander.sinn@desy.de>
Date: Wed, 26 Feb 2025 19:57:12 +0100
Subject: [PATCH] More efficient OrientationIter

---
 Src/Boundary/AMReX_BndryRegister.H | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/Src/Boundary/AMReX_BndryRegister.H b/Src/Boundary/AMReX_BndryRegister.H
index 7892218734f..7d9b55df2fe 100644
--- a/Src/Boundary/AMReX_BndryRegister.H
+++ b/Src/Boundary/AMReX_BndryRegister.H
@@ -267,9 +267,13 @@ BndryRegisterT<MF>::copyFrom (const MF& src, int nghost,
                               int src_comp, int dest_comp, int num_comp,
                               const Periodicity& period)
 {
-    for (OrientationIter face; face; ++face)
-    {
-        bndry[face()].copyFrom(src,nghost,src_comp,dest_comp,num_comp,period);
+    for (OrientationIter face; face; ++face) {
+        bndry[face()].multiFab().ParallelCopy_nowait(src,src_comp,dest_comp,num_comp,
+                                                     nghost,0,period);
+    }
+
+    for (OrientationIter face; face; ++face) {
+        bndry[face()].multiFab().ParallelCopy_finish();
     }
     return *this;
 }