CUDA: fix q_nope_absorbed prec for DS 2 Lite f16 (#13137)

src/llama-model.cpp

@@ -10149,6 +10149,7 @@ struct llm_build_deepseek2 : public llm_graph_context {
 
                     // {n_embd_head_qk_nope, kv_lora_rank, n_head} x {n_embd_head_qk_nope, n_tokens, n_head}
                     ggml_tensor * q_nope_absorbed = ggml_mul_mat(ctx0, model.layers[il].wk_b, q_nope);
+                    ggml_mul_mat_set_prec(q_nope_absorbed, GGML_PREC_F32);
                     cb(q_nope_absorbed, "q_nope_absorbed", il);
 
                     // {kv_lora_rank, n_head, n_tokens}