From a896b4683f6fd08a6718e8350e8f4cfc72df4bec Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Tue, 22 Mar 2022 20:23:05 -0500
Subject: [PATCH] Sort inames before building einsum kernel

---
 loopy/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/loopy/__init__.py b/loopy/__init__.py
index 907d6dfb7..a279b268c 100644
--- a/loopy/__init__.py
+++ b/loopy/__init__.py
@@ -554,7 +554,7 @@ def make_einsum(spec, arg_names, **knl_creation_kwargs):
         rhs = rhs * var(arg_name)[tuple(var(i) for i in argsp)]
 
     if sum_indices:
-        rhs = Reduction("sum", tuple(var(idx) for idx in sum_indices), rhs)
+        rhs = Reduction("sum", tuple(var(idx) for idx in sorted(sum_indices)), rhs)
 
     constraints = " and ".join(
         "0 <= %s < N%s" % (idx, idx)
-- 
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