server : fix incorrect usage of llama_get_embeddings() (ggml-org#14225)

* server : fix incorrect usage of llama_get_embeddings()

ggml-ci

* cont : fix the fix

ggml-ci

Author: ggerganov

include/llama.h

@@ -965,6 +965,7 @@ extern "C" {
     LLAMA_API int32_t llama_n_threads_batch(struct llama_context * ctx);
 
     // Set whether the context outputs embeddings or not
+    // TODO: rename to avoid confusion with llama_get_embeddings()
     LLAMA_API void llama_set_embeddings(struct llama_context * ctx, bool embeddings);
 
     // Set whether to use causal attention or not

tools/server/server.cpp

@@ -1358,6 +1358,14 @@ struct server_slot {
         return server_task_type_need_logits(task_type);
     }
 
+    // if the context does not have a memory module then all embeddings have to be computed within a single ubatch
+    // also we cannot split if the pooling would require any past tokens
+    bool can_split() const {
+        return
+            !need_embd() ||
+            (llama_get_memory(ctx) && llama_pooling_type(ctx) == LLAMA_POOLING_TYPE_LAST);
+    }
+
     bool can_batch_with(server_slot & other_slot) const {
         return task_type == other_slot.task_type && are_lora_equal(lora, other_slot.lora);
     }
@@ -1929,14 +1937,6 @@ struct server_context {
         llama_batch_free(batch);
     }
 
-    // if the context does not have a memory module then all embeddings have to be computed within a single ubatch
-    // also we cannot split if the pooling would require any past tokens
-    bool can_split() const {
-        return
-            !llama_get_embeddings(ctx) ||
-            (llama_get_memory(ctx) && llama_pooling_type(ctx) == LLAMA_POOLING_TYPE_LAST);
-    }
-
     bool load_model(const common_params & params) {
         SRV_INF("loading model '%s'\n", params.model.path.c_str());
 
@@ -3130,7 +3130,7 @@ struct server_context {
                             continue;
                         }
 
-                        if (!can_split()) {
+                        if (!slot.can_split()) {
                             if (slot.n_prompt_tokens > n_ubatch) {
                                 slot.release();
                                 send_error(slot, "input is too large to process. increase the physical batch size", ERROR_TYPE_SERVER);
@@ -3273,7 +3273,7 @@ struct server_context {
                         slot.n_prompt_tokens_processed = 0;
                     }
 
-                    if (!can_split()) {
+                    if (!slot.can_split()) {
                         // cannot fit the prompt in the current batch - will try next iter
                         if (batch.n_tokens + slot.n_prompt_tokens > n_batch) {
                             continue;