Fixing import exl2 (#2399)

server/text_generation_server/layers/gptq/__init__.py

@@ -8,34 +8,6 @@ from text_generation_server.utils.import_utils import SYSTEM
 from text_generation_server.utils.log import log_once
 from text_generation_server.utils.weights import Weight, Weights, WeightsLoader
 
-try:
-    major, _minor = torch.cuda.get_device_capability()
-except Exception:
-    major = 1
-
-HAS_EXLLAMA = False
-CAN_EXLLAMA = major >= 8 or SYSTEM == "rocm"
-V2 = os.getenv("EXLLAMA_VERSION", "2") == "2"
-if os.getenv("DISABLE_EXLLAMA") == "True":
-    HAS_EXLLAMA = False
-elif CAN_EXLLAMA:
-    try:
-        if V2:
-            from text_generation_server.layers.gptq.exllamav2 import (
-                QuantLinear as ExllamaQuantLinear,  # noqa: F401
-            )
-
-            HAS_EXLLAMA = "2"
-        else:
-            from text_generation_server.layers.gptq.exllama import (
-                Ex4bitLinear as ExllamaQuantLinear,  # noqa: F401
-            )
-
-            HAS_EXLLAMA = "1"
-
-    except ImportError:
-        pass
-
 
 @dataclass
 class GPTQWeight(Weight):
@@ -432,3 +404,33 @@ class GPTQWeightsLoader(WeightsLoader):
                 else False
             )
             self.quant_method = "gptq"
+
+
+# Needs to be at the end because circular import.
+try:
+    major, _minor = torch.cuda.get_device_capability()
+except Exception:
+    major = 1
+
+HAS_EXLLAMA = False
+CAN_EXLLAMA = major >= 8 or SYSTEM == "rocm"
+V2 = os.getenv("EXLLAMA_VERSION", "2") == "2"
+if os.getenv("DISABLE_EXLLAMA") == "True":
+    HAS_EXLLAMA = False
+elif CAN_EXLLAMA:
+    try:
+        if V2:
+            from text_generation_server.layers.gptq.exllamav2 import (
+                QuantLinear as ExllamaQuantLinear,  # noqa: F401
+            )
+
+            HAS_EXLLAMA = "2"
+        else:
+            from text_generation_server.layers.gptq.exllama import (
+                Ex4bitLinear as ExllamaQuantLinear,  # noqa: F401
+            )
+
+            HAS_EXLLAMA = "1"
+
+    except ImportError:
+        pass