OpenLLaMA 3B support (#1588)

This adds support to llama.cpp to load the model.

Currently missing are changes that are required from convert.py to convert the model correctly. It needs some changes to start reading the JSON configuration for HF models instead of deriving the values by guessing.

Co-authored-by: FNsi <redacted>

diff --git a/llama.cpp b/llama.cpp
index 5a19316b391270707a0ab323a3b51b7853c938d1..47b4c8dd7ffb2a7e430b1e8f940aa79f97bc0903 100644 (file)
--- a/llama.cpp
+++ b/llama.cpp
@@ -42,6 +42,7 @@
 // available llama models
 enum e_model {
     MODEL_UNKNOWN,
+    MODEL_3B,
     MODEL_7B,
     MODEL_13B,
     MODEL_30B,
@@ -58,6 +59,7 @@ static const size_t MB = 1024*1024;
 static const std::map<e_model, size_t> & MEM_REQ_SCRATCH0()
 {
     static std::map<e_model, size_t> k_sizes = {
+        { MODEL_3B,    128ull * MB },
         { MODEL_7B,    512ull * MB },
         { MODEL_13B,   512ull * MB },
         { MODEL_30B,   512ull * MB },
@@ -69,6 +71,7 @@ static const std::map<e_model, size_t> & MEM_REQ_SCRATCH0()
 static const std::map<e_model, size_t> & MEM_REQ_SCRATCH1()
 {
     static std::map<e_model, size_t> k_sizes = {
+        { MODEL_3B,    128ull * MB },
         { MODEL_7B,    512ull * MB },
         { MODEL_13B,   512ull * MB },
         { MODEL_30B,   512ull * MB },
@@ -81,6 +84,7 @@ static const std::map<e_model, size_t> & MEM_REQ_SCRATCH1()
 static const std::map<e_model, size_t> & MEM_REQ_KV_SELF()
 {
     static std::map<e_model, size_t> k_sizes = {
+        { MODEL_3B,    682ull * MB },
         { MODEL_7B,   1026ull * MB },
         { MODEL_13B,  1608ull * MB },
         { MODEL_30B,  3124ull * MB },
@@ -94,6 +98,7 @@ static const std::map<e_model, size_t> & MEM_REQ_KV_SELF()
 static const std::map<e_model, size_t> & MEM_REQ_EVAL()
 {
     static std::map<e_model, size_t> k_sizes = {
+        { MODEL_3B,   512ull * MB },
         { MODEL_7B,   768ull * MB },
         { MODEL_13B, 1024ull * MB },
         { MODEL_30B, 1280ull * MB },
@@ -899,6 +904,7 @@ static const char *llama_ftype_name(enum llama_ftype ftype) {
 
 static const char *llama_model_type_name(e_model type) {
     switch (type) {
+        case MODEL_3B: return "3B";
         case MODEL_7B: return "7B";
         case MODEL_13B: return "13B";
         case MODEL_30B: return "30B";
@@ -932,6 +938,7 @@ static void llama_model_load_internal(
 
     {
         switch (hparams.n_layer) {
+            case 26: model.type = e_model::MODEL_3B; break;
             case 32: model.type = e_model::MODEL_7B; break;
             case 40: model.type = e_model::MODEL_13B; break;
             case 60: model.type = e_model::MODEL_30B; break;