clean up struct def

common/common.cpp

@@ -687,7 +687,6 @@ bool gpt_params_find_arg(int argc, char ** argv, const std::string & arg, gpt_pa
         params.lora_adapters.push_back({
             std::string(argv[i]),
             1.0,
-            nullptr,
         });
         return true;
     }
@@ -698,7 +697,6 @@ bool gpt_params_find_arg(int argc, char ** argv, const std::string & arg, gpt_pa
         params.lora_adapters.push_back({
             lora_adapter,
             std::stof(argv[i]),
-            nullptr,
         });
         return true;
     }
@@ -2106,16 +2104,20 @@ struct llama_init_result llama_init_from_gpt_params(gpt_params & params) {
 
     // load and optionally apply lora adapters
     for (auto & la : params.lora_adapters) {
-        la.adapter = llama_lora_adapter_init(model, la.path.c_str());
+        llama_lora_adapter_container loaded_la;
-        if (la.adapter == nullptr) {
+        loaded_la.path = la.path;
+        loaded_la.scale = la.scale;
+        loaded_la.adapter = llama_lora_adapter_init(model, la.path.c_str());
+        if (loaded_la.adapter == nullptr) {
             fprintf(stderr, "%s: error: failed to apply lora adapter '%s'\n", __func__, la.path.c_str());
             llama_free(lctx);
             llama_free_model(model);
             return iparams;
         }
+        iparams.lora_adapters.push_back(loaded_la); // copy to list of loaded adapters
     }
     if (!params.lora_init_without_apply) {
-        llama_lora_adapters_apply(lctx, params.lora_adapters);
+        llama_lora_adapters_apply(lctx, iparams.lora_adapters);
     }
 
     if (params.ignore_eos) {

common/common.h

@@ -33,9 +33,12 @@
 
 #define DEFAULT_MODEL_PATH "models/7B/ggml-model-f16.gguf"
 
-struct llama_lora_adapter_container {
+struct llama_lora_adapter_info {
     std::string path;
     float scale;
+};
+
+struct llama_lora_adapter_container : llama_lora_adapter_info {
     struct llama_lora_adapter * adapter;
 };
 
@@ -133,7 +136,7 @@ struct gpt_params {
     std::vector<llama_model_kv_override> kv_overrides;
 
     bool lora_init_without_apply = false; // only load lora to memory, but do not apply it to ctx (user can manually apply lora later using llama_lora_adapter_apply)
-    std::vector<llama_lora_adapter_container> lora_adapters; // lora adapter path with user defined scale
+    std::vector<llama_lora_adapter_info> lora_adapters; // lora adapter path with user defined scale
 
     std::vector<llama_control_vector_load_info> control_vectors; // control vector with user defined scale
 
@@ -315,8 +318,9 @@ std::string fs_get_cache_file(const std::string & filename);
 //
 
 struct llama_init_result {
-    struct llama_model * model = nullptr;
+    struct llama_model   * model   = nullptr;
     struct llama_context * context = nullptr;
+    std::vector<llama_lora_adapter_container> lora_adapters;
 };
 
 struct llama_init_result    llama_init_from_gpt_params(gpt_params & params);

examples/server/server.cpp

@@ -623,6 +623,7 @@ struct server_response {
 struct server_context {
     llama_model * model = nullptr;
     llama_context * ctx = nullptr;
+    std::vector<llama_lora_adapter_container> lora_adapters;
 
     gpt_params params;
 
@@ -682,6 +683,7 @@ struct server_context {
 
         model = llama_init.model;
         ctx = llama_init.context;
+        lora_adapters = llama_init.lora_adapters;
         params.n_parallel -= 1; // but be sneaky about it
         if (model == nullptr) {
             LOG_ERROR("unable to load model", {{"model", params.model}});
@@ -1853,7 +1855,7 @@ struct server_context {
                 } break;
             case SERVER_TASK_TYPE_SET_LORA:
                 {
-                    llama_lora_adapters_apply(ctx, params.lora_adapters);
+                    llama_lora_adapters_apply(ctx, lora_adapters);
                     server_task_result result;
                     result.id = task.id;
                     result.data = json{{ "success", true }};
@@ -3340,8 +3342,8 @@ int main(int argc, char ** argv) {
     const auto handle_lora_adapters_list = [&](const httplib::Request & req, httplib::Response & res) {
         res.set_header("Access-Control-Allow-Origin", req.get_header_value("Origin"));
         json result = json::array();
-        for (size_t i = 0; i < ctx_server.params.lora_adapters.size(); ++i) {
+        for (size_t i = 0; i < ctx_server.lora_adapters.size(); ++i) {
-            auto & la = ctx_server.params.lora_adapters[i];
+            auto & la = ctx_server.lora_adapters[i];
             result.push_back({
                 {"id", i},
                 {"path", la.path},
@@ -3356,10 +3358,10 @@ int main(int argc, char ** argv) {
         res.set_header("Access-Control-Allow-Origin", req.get_header_value("Origin"));
 
         const std::vector<json> body = json::parse(req.body);
-        int max_idx = ctx_server.params.lora_adapters.size();
+        int max_idx = ctx_server.lora_adapters.size();
 
         // clear existing value
-        for (auto & la : ctx_server.params.lora_adapters) {
+        for (auto & la : ctx_server.lora_adapters) {
             la.scale = 0.0f;
         }
 
@@ -3368,7 +3370,7 @@ int main(int argc, char ** argv) {
             int id      = entry.at("id");
             float scale = entry.at("scale");
             if (0 <= id && id < max_idx) {
-                ctx_server.params.lora_adapters[id].scale = scale;
+                ctx_server.lora_adapters[id].scale = scale;
             } else {
                 throw std::runtime_error("invalid adapter id");
             }