diff --git a/example/ck_tile/99_toy_example/02_gemm/block_gemm_asmem_bsmem_creg_default_policy.hpp b/example/ck_tile/99_toy_example/02_gemm/block_gemm_asmem_bsmem_creg_default_policy.hpp
index 75bfddd634..c9961bc259 100644
--- a/example/ck_tile/99_toy_example/02_gemm/block_gemm_asmem_bsmem_creg_default_policy.hpp
+++ b/example/ck_tile/99_toy_example/02_gemm/block_gemm_asmem_bsmem_creg_default_policy.hpp
@@ -15,6 +15,8 @@ struct BlockGemmASmemBSmemCRegDefaultPolicy
     template <typename Problem>
     CK_TILE_HOST_DEVICE static constexpr auto GetWarpGemmMWarpNWarp()
     {
+#if 0
+#pragma message ("mfma k16")
         if constexpr(std::is_same_v<typename Problem::ADataType, half_t> &&
                      std::is_same_v<typename Problem::BDataType, half_t> &&
                      std::is_same_v<typename Problem::CDataType, float>)
@@ -27,6 +29,21 @@ struct BlockGemmASmemBSmemCRegDefaultPolicy
         {
             return make_tuple(WarpGemmMfmaBf16Bf16F32M32N32K16TransposedCDistribution{}, 4, 1);
         }
+#else
+#pragma message ("mfma k8")
+        if constexpr(std::is_same_v<typename Problem::ADataType, half_t> &&
+                     std::is_same_v<typename Problem::BDataType, half_t> &&
+                     std::is_same_v<typename Problem::CDataType, float>)
+        {
+        return make_tuple(WarpGemmMfmaF16F16F32M32N32K8TransposedCDistribution{}, 4, 1);
+        }
+        else if constexpr(std::is_same_v<typename Problem::ADataType, bf16_t> &&
+                          std::is_same_v<typename Problem::BDataType, bf16_t> &&
+                          std::is_same_v<typename Problem::CDataType, float>)
+        {
+        return make_tuple(WarpGemmMfmaBf16Bf16F32M32N32K8TransposedCDistribution{}, 4, 1);
+        }
+#endif
         else
         {
             static_assert(false, "Unsupported data type configuration for GEMM warp execution.");