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-rw-r--r--var/spack/repos/builtin/packages/charm/package.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/charm/package.py b/var/spack/repos/builtin/packages/charm/package.py
index 6bbbf06327..b232e97442 100644
--- a/var/spack/repos/builtin/packages/charm/package.py
+++ b/var/spack/repos/builtin/packages/charm/package.py
@@ -71,7 +71,7 @@ class Charm(Package):
# Communication mechanisms (choose exactly one)
variant(
"backend",
- default="mpi",
+ default="netlrts",
values=("mpi", "multicore", "netlrts", "verbs", "gni",
"ofi", "pami", "pamilrts"),
description="Set the backend to use"