Allow for users to pass in a quantization config (#1269)

SilasMarvin · web-flow · commit 2beb24757dd7 · 2024-01-03T12:36:19.000-08:00
diff --git a/pgml-extension/src/bindings/transformers/transformers.py b/pgml-extension/src/bindings/transformers/transformers.py
@@ -41,6 +41,7 @@
     PegasusTokenizer,
     TrainingArguments,
     Trainer,
+    GPTQConfig
 )
 import threading
 
@@ -279,7 +280,13 @@ def __init__(self, model_name, **kwargs):
             elif self.task == "summarization" or self.task == "translation":
                 self.model = AutoModelForSeq2SeqLM.from_pretrained(model_name, **kwargs)
             elif self.task == "text-generation" or self.task == "conversational":
-                self.model = AutoModelForCausalLM.from_pretrained(model_name, **kwargs)
+                # See: https://huggingface.co/docs/transformers/main/quantization
+                if "quantization_config" in kwargs:
+                    quantization_config = kwargs.pop("quantization_config")
+                    quantization_config = GPTQConfig(**quantization_config)
+                    self.model = AutoModelForCausalLM.from_pretrained(model_name, quantization_config=quantization_config, **kwargs)
+                else:
+                    self.model = AutoModelForCausalLM.from_pretrained(model_name, **kwargs)
             else:
                 raise PgMLException(f"Unhandled task: {self.task}")
 
@@ -409,10 +416,13 @@ def create_pipeline(task):
     else:
         try:
             pipe = StandardPipeline(model_name, **task)
-        except TypeError:
-            # some models fail when given "device" kwargs, remove and try again
-            task.pop("device")
-            pipe = StandardPipeline(model_name, **task)
+        except TypeError as error:
+            if "device" in task:
+                # some models fail when given "device" kwargs, remove and try again
+                task.pop("device")
+                pipe = StandardPipeline(model_name, **task)
+            else:
+                raise error
     return pipe
 
 
