From a7faa04cd4d91648ce058f782635eeaa84ec28ac Mon Sep 17 00:00:00 2001
From: Angelos Katharopoulos <a_katharopoulos@apple.com>
Date: Tue, 24 Jun 2025 10:39:53 -0700
Subject: [PATCH] Add a special case when not keeping the dims

---
 mlx/backend/cuda/reduce/reduce_utils.cuh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mlx/backend/cuda/reduce/reduce_utils.cuh b/mlx/backend/cuda/reduce/reduce_utils.cuh
index 0cbccf69e..f3b30f587 100644
--- a/mlx/backend/cuda/reduce/reduce_utils.cuh
+++ b/mlx/backend/cuda/reduce/reduce_utils.cuh
@@ -108,6 +108,11 @@ inline void allocate_same_layout(
     array& out,
     const array& in,
     const std::vector<int>& axes) {
+  if (out.ndim() < in.ndim()) {
+    out.set_data(allocator::malloc(out.nbytes()));
+    return;
+  }
+
   // Calculate the transpositions applied to in in order to apply them to out.
   std::vector<int> axis_order(in.ndim());
   std::iota(axis_order.begin(), axis_order.end(), 0);