support 1b model type

Author: akawrykow

llama.cpp

@@ -830,6 +830,7 @@ static llama_state g_state;
 // available llama models
 enum e_model {
     MODEL_UNKNOWN,
+    MODEL_1B,
     MODEL_3B,
     MODEL_7B,
     MODEL_13B,
@@ -1626,6 +1627,7 @@ static void llm_load_hparams(
                 GGUF_GET_KEY(ctx, hparams.f_norm_eps, gguf_get_val_f32, GGUF_TYPE_FLOAT32, true, kv(LLM_KV_ATTENTION_LAYERNORM_EPS));
 
                 switch (hparams.n_layer) {
+                    case 24: model.type = e_model::MODEL_1B; break;
                     case 32: model.type = e_model::MODEL_7B; break;
                     case 60: model.type = e_model::MODEL_40B; break;
                     default: model.type = e_model::MODEL_UNKNOWN;