From e0dc6241d16220dffb2826cbbd72d1376529b604 Mon Sep 17 00:00:00 2001
From: Erik Schnetter <schnetter@gmail.com>
Date: Tue, 24 Oct 2023 09:02:30 -0400
Subject: [PATCH] CarpetX: Enable managed memory by default

---
 CarpetX/src/driver.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CarpetX/src/driver.cxx b/CarpetX/src/driver.cxx
index 313d5a88f..126af6ec3 100644
--- a/CarpetX/src/driver.cxx
+++ b/CarpetX/src/driver.cxx
@@ -2326,6 +2326,10 @@ void *SetupGH(tFleshConfig *fc, int convLevel, cGH *restrict cctkGH) {
   // we get core files.
   pp.add("amrex.throw_exception", 1);
 
+  // Enable managed memory (i.e. copy data automatically between accelerator and
+  // host)
+  pp.add("amrex.the_arena_is_managed", 1);
+
   // Set blocking factors via parameter table since AmrMesh needs to
   // know them when its constructor is running, but there are no
   // constructor arguments for them