From 12e9bcd7e232c88caffa07662277ac8554836da9 Mon Sep 17 00:00:00 2001
From: Yashvardhan Agarwal <yashagar@amd.com>
Date: Tue, 21 Oct 2025 15:42:08 +0300
Subject: [PATCH] fix identity value of AbsMax (#3058)

* fix identity value of AbsMax

- Identity value of AbsMax should be 0 not numeric<T>::lowest()

* Update include/ck_tile/core/utility/reduce_operator.hpp

resolved comment

Co-authored-by: Christopher Millette <63608002+cgmillette@users.noreply.github.com>

---------

Co-authored-by: Christopher Millette <63608002+cgmillette@users.noreply.github.com>

[ROCm/composable_kernel commit: 35754d2ec817087a2a7de53729f2a97c7c9f05fa]
---
 include/ck_tile/core/utility/reduce_operator.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/ck_tile/core/utility/reduce_operator.hpp b/include/ck_tile/core/utility/reduce_operator.hpp
index f870bd99d6..218606f303 100644
--- a/include/ck_tile/core/utility/reduce_operator.hpp
+++ b/include/ck_tile/core/utility/reduce_operator.hpp
@@ -96,7 +96,7 @@ struct AbsMax
                                           std::is_same_v<T, fp8_t> || std::is_same_v<T, bf8_t>>>
     CK_TILE_HOST_DEVICE static constexpr T GetIdentityValue()
     {
-        return numeric<T>::lowest();
+        return numeric<T>::zero();
     };
 
     template <typename T,