From 0ab9d6fed73dbc5dc8026c868cb10a6728c4ed48 Mon Sep 17 00:00:00 2001
From: mgroeber9110 <45620825+mgroeber9110@users.noreply.github.com>
Date: Sun, 2 Aug 2026 20:44:00 +0200
Subject: [PATCH] opencl: limit local workgroup size for GLU operation (#26383)

---
 ggml/src/ggml-opencl/ggml-opencl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ggml/src/ggml-opencl/ggml-opencl.cpp b/ggml/src/ggml-opencl/ggml-opencl.cpp
index 388c585fa1..915c8e7b90 100644
--- a/ggml/src/ggml-opencl/ggml-opencl.cpp
+++ b/ggml/src/ggml-opencl/ggml-opencl.cpp
@@ -24260,7 +24260,7 @@ static void ggml_cl_glu(ggml_backend_t backend, const ggml_tensor * src0, const
     }
 
     const size_t nrows = ggml_nrows(src0);
-    size_t nth = 512;
+    size_t nth = backend_ctx->max_workgroup_size < 512 ? backend_ctx->max_workgroup_size : 512;
     size_t global_work_size[] = {nrows*nth, 1, 1};
     size_t local_work_size[] = {nth, 1, 1};