Remove redundant checks

Author: 0cc4m

ggml/src/ggml-vulkan/ggml-vulkan.cpp

@@ -3413,9 +3413,7 @@ static uint32_t ggml_vk_guess_split_k(ggml_backend_vk_context * ctx, int m, int
 static vk_pipeline ggml_vk_guess_matmul_pipeline(ggml_backend_vk_context * ctx, vk_matmul_pipeline& mmp, int m, int n, bool aligned, ggml_type type_a) {
     VK_LOG_DEBUG("ggml_vk_guess_matmul_pipeline(" << m << ", " << n << ", " << aligned << ")");
 
-    // On F32 matmuls, selecting this way increases performance significantly. On quants or fp16, it reduces performance.
-    // Maybe because it reduces checks and uses more vector loads, but why is fp16 worse?
-    if (ctx->device->coopmat2 || type_a == GGML_TYPE_F32) {
+    if (ctx->device->coopmat2) {
         if ((ctx->device->mul_mat_l && (m % mmp->l->wg_denoms[0]) == 0 && (n & mmp->l->wg_denoms[1]) == 0) || (!ctx->device->mul_mat_m && !ctx->device->mul_mat_s)) {
             return aligned ? mmp->a_l : mmp->l;
         }
@@ -3468,7 +3466,7 @@ static vk_pipeline ggml_vk_guess_matmul_id_pipeline(ggml_backend_vk_context * ct
     if ((ctx->device->mul_mat_id_s && (m <= 32 || n <= 32)) || (!ctx->device->mul_mat_id_m && !ctx->device->mul_mat_id_l)) {
         return aligned ? mmp->a_s : mmp->s;
     }
-    if ((ctx->device->mul_mat_id_m && (m <= 64 || n <= 64 || ctx->device->coopmat_support)) || !ctx->device->mul_mat_id_l) {
+    if ((ctx->device->mul_mat_id_m && (m <= 64 || n <= 64)) || !ctx->device->mul_mat_id_l) {
         return aligned ? mmp->a_m : mmp->m;
     }
     return aligned ? mmp->a_l : mmp->l;

ggml/src/ggml-vulkan/vulkan-shaders/mul_mm.comp

@@ -580,12 +580,8 @@ void main() {
 
             if (is_aligned && is_in_bounds) {
                 // Full coopMat is within bounds and stride_d is aligned with 16B
-#ifdef ACC_F16
                 coopmat<D_TYPE, gl_ScopeSubgroup, TM, TN, gl_MatrixUseAccumulator> cm_dtype = coopmat<D_TYPE, gl_ScopeSubgroup, TM, TN, gl_MatrixUseAccumulator>(sums[cm_col * cms_per_row + cm_row]);
                 coopMatStore(cm_dtype, data_d, offsets + (dc + cm_col * TN) * p.stride_d + dr + cm_row * TM, p.stride_d, gl_CooperativeMatrixLayoutColumnMajor);
-#else
-                coopMatStore(sums[cm_col * cms_per_row + cm_row], data_d, offsets + (dc + cm_col * TN) * p.stride_d + dr + cm_row * TM, p.stride_d, gl_CooperativeMatrixLayoutColumnMajor);
-#endif
             } else if (is_in_bounds) {
                 // Full coopMat is within bounds, but stride_d is not aligned
                 coopMatStore(sums[cm_col * cms_per_row + cm_row], coopmat_stage, warp_i * TM * TN, TM, gl_CooperativeMatrixLayoutColumnMajor);

ggml/src/ggml-vulkan/vulkan-shaders/vulkan-shaders-gen.cpp

@@ -292,10 +292,6 @@ void matmul_shaders(bool fp16, bool matmul_id, bool coopmat, bool coopmat2, bool
 
     base_dict["ACC_TYPE"] = f16acc ? "float16_t" : "float";
 
-    if (f16acc) {
-        base_dict["ACC_F16"] = "1";
-    }
-
     if (coopmat) {
         base_dict["COOPMAT"] = "1";
     }