From 01c4097cccbe5bb9f3da131349a7e97ebf9336da Mon Sep 17 00:00:00 2001
From: biondizzle <biondizzle@gmail.com>
Date: Thu, 28 May 2026 09:27:59 +0000
Subject: [PATCH] test: zero 32 TMEM columns

---
 tests/unit/test_umma_qk.cu | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/unit/test_umma_qk.cu b/tests/unit/test_umma_qk.cu
index 48ad1cba..d62f472b 100644
--- a/tests/unit/test_umma_qk.cu
+++ b/tests/unit/test_umma_qk.cu
@@ -78,9 +78,9 @@ test_umma_qk_hd16(
     }
     __syncthreads();
 
-    // Zero TMEM
+    // Zero TMEM — test with 32 columns first
     if (wid == 0) {
-        for (int col = 0; col < 128; col++) {
+        for (int col = 0; col < 32; col++) {
             tmem_store(tmem_base + col, 0, 0, 0, 0);
         }
         tmem_fence_store();