Merge pull request #8182 from OuadiElfarouki/mixed_precision_gemm

sycl-exp : Enabled more data types for oneMKL's gemm_batch API

Author: OuadiElfarouki

ggml-sycl.cpp

@@ -2490,6 +2490,7 @@ namespace dpct
                                            b, ldb, beta, c, ldc, batch_size);
             break;
         }
+#endif
         case detail::get_type_combination_id(
             library_data_t::real_int8, library_data_t::real_int8,
             library_data_t::real_int32, library_data_t::real_int32):
@@ -2522,7 +2523,6 @@ namespace dpct
                 batch_size);
             break;
         }
-#endif
         case detail::get_type_combination_id(
             library_data_t::real_half, library_data_t::real_half,
             library_data_t::real_half, library_data_t::real_float):
@@ -2659,6 +2659,7 @@ namespace dpct
                                            stride_c, batch_size);
             break;
         }
+#endif
         case detail::get_type_combination_id(
             library_data_t::real_int8, library_data_t::real_int8,
             library_data_t::real_int32, library_data_t::real_int32):
@@ -2687,7 +2688,6 @@ namespace dpct
                 beta, c, ldc, stride_c, batch_size);
             break;
         }
-#endif
         case detail::get_type_combination_id(
             library_data_t::real_half, library_data_t::real_half,
             library_data_t::real_half, library_data_t::real_float):
@@ -15026,9 +15026,6 @@ static void ggml_sycl_mul_mat_batched_sycl(const ggml_tensor *src0,
     SYCL_CHECK(ggml_sycl_set_device(g_main_device));
     dpct::queue_ptr main_stream = g_syclStreams[g_main_device][0];
 
-    bool no_mixed_dtypes = main_stream->get_backend() == sycl::backend::ext_oneapi_cuda ||
-                           main_stream->get_backend() == sycl::backend::ext_oneapi_hip;
-
     SYCL_CHECK(
         CHECK_TRY_ERROR(g_sycl_handles[g_main_device] = main_stream));
 
@@ -15059,10 +15056,6 @@ static void ggml_sycl_mul_mat_batched_sycl(const ggml_tensor *src0,
 
     dpct::library_data_t cu_compute_type = dpct::library_data_t::real_float;
     dpct::library_data_t cu_data_type = dpct::library_data_t::real_float;
-    if (no_mixed_dtypes) {
-        cu_compute_type = dpct::library_data_t::real_half;
-        cu_data_type = dpct::library_data_t::real_half;
-    }
 
     // dst strides
     size_t nbd2 = dst->nb[2];
@@ -15076,21 +15069,8 @@ static void ggml_sycl_mul_mat_batched_sycl(const ggml_tensor *src0,
 
     const void * alpha = &alpha_f32;
     const void * beta  = &beta_f32;
-    if (no_mixed_dtypes) {
-        alpha = &alpha_f16;
-        beta  = &beta_f16;
-    }
-
-    // TODO: Renable (dst->op_params[0] =! GGML_PREC_DEFAULT) pathway
-    // when oneMKL open source supports half, half, float, float: datatypes
 
     dst_t = (char *) dst_ddf;
-    if (no_mixed_dtypes) {
-        dst_t = (char *) dst_f16.alloc(ne_dst);
-
-        nbd2 /= sizeof(float) / sizeof(sycl::half);
-        nbd3 /= sizeof(float) / sizeof(sycl::half);
-    }
 
     GGML_ASSERT(ne12 % ne02 == 0);
     GGML_ASSERT(ne13 % ne03 == 0);
@@ -15152,11 +15132,6 @@ static void ggml_sycl_mul_mat_batched_sycl(const ggml_tensor *src0,
             (void **)(ptrs_dst.get() + 0 * ne23), cu_data_type, ne01, ne23,
             cu_compute_type)));
     }
-
-    if (no_mixed_dtypes) {
-        const to_fp32_sycl_t to_fp32_sycl = ggml_get_to_fp32_sycl(GGML_TYPE_F16);
-        to_fp32_sycl(dst_f16.get(), dst_ddf, ne_dst, main_stream);
-    }
 }
 catch (sycl::exception const &exc) {
   std::cerr << exc.what() << "Exception caught at file:" << __FILE__