pvc wa for 2d-load

Author: DDEle

include/experimental/group/gemm/impl/int4_dequantize_xe.hpp

@@ -286,7 +286,9 @@ class gemm_t<
       mem_desc_scale_t,
       scale_tile_desc_t,
       subgroup::msg_type_v<scale_tile_desc_t, mem_desc_scale_t>,
-      arch_tag>;
+      (tile_size_x_b > 1 && arch_tag == gpu_arch::XeHpc) // TODO(Yi): PVC 2d WA
+          ? gpu_arch::XeHpg
+          : arch_tag>;
 
   // compress int4 along N dimensions
   using zero_pt_tile_desc_t = subgroup::tile_desc_t<

tests/integration/gemv/int4/main.cpp

@@ -16,7 +16,7 @@
 
 #include <utils/utils.hpp>
 #include "xetla.hpp"
-// #define UT_DEBUG
+#define UT_DEBUG
 using namespace gpu::xetla;
 using namespace gpu::xetla::group;
 // The number of times the kernel is executed
@@ -35,9 +35,9 @@ class test_col_major_1 {
   static constexpr size_t mat_n = 4096;
   static constexpr size_t mat_k = 4096;
   static constexpr size_t wg_m = 64;
-  static constexpr size_t wg_n = 32;
+  static constexpr size_t wg_n = 64;
   static constexpr size_t sg_m = 16;
-  static constexpr size_t sg_n = 8;
+  static constexpr size_t sg_n = 16;
   static constexpr size_t sg_k = 32;
   static constexpr size_t dequant_s = 128;
   static constexpr quant_mode quant_mode = quant_mode::I4_SYM;