Add low_vram parameter

Author: abetlen

llama_cpp/llama.py

@@ -219,6 +219,7 @@ def __init__(
         last_n_tokens_size: int = 64,
         lora_base: Optional[str] = None,
         lora_path: Optional[str] = None,
+        low_vram: bool = False,
         verbose: bool = True,
     ):
         """Load a llama.cpp model from `model_path`.
@@ -260,6 +261,7 @@ def __init__(
         self.params.use_mmap = use_mmap if lora_path is None else False
         self.params.use_mlock = use_mlock
         self.params.embedding = embedding
+        self.params.low_vram = low_vram
 
         self.last_n_tokens_size = last_n_tokens_size
         self.n_batch = min(n_ctx, n_batch)
@@ -1447,6 +1449,7 @@ def __getstate__(self):
             use_mmap=self.params.use_mmap,
             use_mlock=self.params.use_mlock,
             embedding=self.params.embedding,
+            low_vram=self.params.low_vram,
             last_n_tokens_size=self.last_n_tokens_size,
             n_batch=self.n_batch,
             n_threads=self.n_threads,
@@ -1470,6 +1473,7 @@ def __setstate__(self, state):
             use_mmap=state["use_mmap"],
             use_mlock=state["use_mlock"],
             embedding=state["embedding"],
+            low_vram=state["low_vram"],
             n_threads=state["n_threads"],
             n_batch=state["n_batch"],
             last_n_tokens_size=state["last_n_tokens_size"],