diff --git a/common/arg.cpp b/common/arg.cpp
index 66dd5aa88..573ec06a6 100644
--- a/common/arg.cpp
+++ b/common/arg.cpp
@@ -854,6 +854,20 @@ common_params_context common_params_parser_init(common_params & params, llama_ex
             }
         }
     ).set_excludes({LLAMA_EXAMPLE_SERVER}));
+    add_opt(common_arg(
+        {"-sysf", "--system-prompt-file"}, "FNAME",
+        "a file containing the system prompt (default: none)",
+        [](common_params & params, const std::string & value) {
+            std::ifstream file(value);
+            if (!file) {
+                throw std::runtime_error(string_format("error: failed to open file '%s'\n", value.c_str()));
+            }
+            std::copy(std::istreambuf_iterator<char>(file), std::istreambuf_iterator<char>(), back_inserter(params.system_prompt));
+            if (!params.system_prompt.empty() && params.system_prompt.back() == '\n') {
+                params.system_prompt.pop_back();
+            }
+        }
+    ).set_examples({LLAMA_EXAMPLE_MAIN}));
     add_opt(common_arg(
         {"--in-file"}, "FNAME",
         "an input file (repeat to specify multiple files)",
diff --git a/common/common.cpp b/common/common.cpp
index 7d4f72057..20ef8aa8b 100644
--- a/common/common.cpp
+++ b/common/common.cpp
@@ -1037,6 +1037,8 @@ struct common_init_result common_init_from_params(common_params & params) {
     if (params.warmup) {
         LOG_WRN("%s: warming up the model with an empty run - please wait ... (--no-warmup to disable)\n", __func__);
 
+        llama_set_warmup(lctx, true);
+
         std::vector<llama_token> tmp;
         llama_token bos = llama_vocab_bos(vocab);
         llama_token eos = llama_vocab_eos(vocab);
@@ -1067,6 +1069,7 @@ struct common_init_result common_init_from_params(common_params & params) {
         llama_kv_self_clear(lctx);
         llama_synchronize(lctx);
         llama_perf_context_reset(lctx);
+        llama_set_warmup(lctx, false);
     }
 
     iparams.model.reset(model);
diff --git a/examples/server/utils.hpp b/examples/server/utils.hpp
index 36ad276fd..58cdd6af9 100644
--- a/examples/server/utils.hpp
+++ b/examples/server/utils.hpp
@@ -621,7 +621,9 @@ static json oaicompat_completion_params_parse(
 
     llama_params["chat_format"]      = static_cast<int>(chat_params.format);
     llama_params["prompt"]           = chat_params.prompt;
-    llama_params["grammar"]          = chat_params.grammar;
+    if (!chat_params.grammar.empty()) {
+        llama_params["grammar"] = chat_params.grammar;
+    }
     llama_params["grammar_lazy"]     = chat_params.grammar_lazy;
     auto grammar_triggers = json::array();
     for (const auto & trigger : chat_params.grammar_triggers) {
diff --git a/ggml/src/ggml-cann/ggml-cann.cpp b/ggml/src/ggml-cann/ggml-cann.cpp
index b8d272cda..68cd9920d 100644
--- a/ggml/src/ggml-cann/ggml-cann.cpp
+++ b/ggml/src/ggml-cann/ggml-cann.cpp
@@ -1689,11 +1689,6 @@ static bool ggml_backend_cann_supports_op(ggml_backend_dev_t dev,
         case GGML_OP_MUL_MAT: {
             switch (op->src[0]->type) {
                 case GGML_TYPE_Q8_0:
-                    // Current groupsize should not be greater than k-1 in
-                    // aclnnWeightQuantBatchMatmulV2GetWorkspaceSize
-                    if (op->src[0]->ne[0] <= QK8_0) {
-                        return false;
-                    }
                 case GGML_TYPE_F16:
                 case GGML_TYPE_F32:
                 case GGML_TYPE_Q4_0:
diff --git a/include/llama.h b/include/llama.h
index 58b3c01f8..fd183c0d5 100644
--- a/include/llama.h
+++ b/include/llama.h
@@ -947,6 +947,10 @@ extern "C" {
     // If set to true, the model will only attend to the past tokens
     LLAMA_API void llama_set_causal_attn(struct llama_context * ctx, bool causal_attn);
 
+    // Set whether the model is in warmup mode or not
+    // If true, all model tensors are activated during llama_decode() to load and cache their weights.
+    LLAMA_API void llama_set_warmup(struct llama_context * ctx, bool warmup);
+
     // Set abort callback
     LLAMA_API void llama_set_abort_callback(struct llama_context * ctx, ggml_abort_callback abort_callback, void * abort_callback_data);
 
diff --git a/src/llama-context.cpp b/src/llama-context.cpp
index a88dae736..cf9181cc3 100644
--- a/src/llama-context.cpp
+++ b/src/llama-context.cpp
@@ -39,6 +39,7 @@ llama_context::llama_context(
     cparams.flash_attn       = params.flash_attn;
     cparams.no_perf          = params.no_perf;
     cparams.pooling_type     = params.pooling_type;
+    cparams.warmup           = false;
 
     cparams.n_ctx            = params.n_ctx           == 0    ? hparams.n_ctx_train           : params.n_ctx;
     cparams.rope_freq_base   = params.rope_freq_base  == 0.0f ? hparams.rope_freq_base_train  : params.rope_freq_base;
@@ -949,6 +950,12 @@ void llama_context::set_causal_attn(bool value) {
     cparams.causal_attn = value;
 }
 
+void llama_context::set_warmup(bool value) {
+    LLAMA_LOG_DEBUG("%s: value = %d\n", __func__, value);
+
+    cparams.warmup = value;
+}
+
 void llama_context::set_adapter_lora(
             llama_adapter_lora * adapter,
             float scale) {
@@ -1595,7 +1602,7 @@ void llama_context::output_reorder() {
 //
 
 int32_t llama_context::graph_max_nodes() const {
-    return std::max<int32_t>(8192, 5*model.n_tensors());
+    return std::max<int32_t>(65536, 5*model.n_tensors());
 }
 
 ggml_cgraph * llama_context::graph_init() {
@@ -2373,6 +2380,10 @@ void llama_set_causal_attn(llama_context * ctx, bool causal_attn) {
     ctx->set_causal_attn(causal_attn);
 }
 
+void llama_set_warmup(llama_context * ctx, bool warmup) {
+    ctx->set_warmup(warmup);
+}
+
 void llama_synchronize(llama_context * ctx) {
     ctx->synchronize();
 }
diff --git a/src/llama-context.h b/src/llama-context.h
index 88df8950e..04facb544 100644
--- a/src/llama-context.h
+++ b/src/llama-context.h
@@ -64,6 +64,7 @@ struct llama_context {
 
     void set_embeddings (bool value);
     void set_causal_attn(bool value);
+    void set_warmup(bool value);
 
     void set_adapter_lora(
             llama_adapter_lora * adapter,
diff --git a/src/llama-cparams.h b/src/llama-cparams.h
index 252012f3d..30e550f02 100644
--- a/src/llama-cparams.h
+++ b/src/llama-cparams.h
@@ -29,6 +29,7 @@ struct llama_cparams {
     bool offload_kqv;
     bool flash_attn;
     bool no_perf;
+    bool warmup;
 
     enum llama_pooling_type pooling_type;
 
diff --git a/src/llama-graph.cpp b/src/llama-graph.cpp
index 42a6722aa..d21b89d04 100644
--- a/src/llama-graph.cpp
+++ b/src/llama-graph.cpp
@@ -577,7 +577,7 @@ llm_graph_context::llm_graph_context(const llm_graph_params & params) :
     n_embd_head_v    (hparams.n_embd_head_v),
     n_embd_v_gqa     (hparams.n_embd_v_gqa()),
     n_expert         (hparams.n_expert),
-    n_expert_used    (hparams.n_expert_used),
+    n_expert_used    (cparams.warmup ? hparams.n_expert : hparams.n_expert_used),
     freq_base        (cparams.rope_freq_base),
     freq_scale       (cparams.rope_freq_scale),
     ext_factor       (cparams.yarn_ext_factor),