Upload src/lora_switching_module.py with huggingface_hub

src/lora_switching_module.py

@@ -0,0 +1,39 @@
+import ipdb
+from peft.tuners.tuners_utils import BaseTunerLayer
+from typing import List, Any, Optional, Type
+def module_active_adapters(module):
+    if hasattr(module, 'active_adapters'):
+        result = [i for i in module.active_adapters if i in module.scaling.keys()]
+    else:
+        result = []
+    return result
+
+class enable_lora:
+    def __init__(self, lora_modules: List[BaseTunerLayer], enable_adapters: List) -> None:
+        self.lora_modules: List[BaseTunerLayer] = [
+            each for each in lora_modules if isinstance(each, BaseTunerLayer)
+        ]
+        self.active_adapter_scales = [
+            {
+                active_adapter: lora_module.scaling[active_adapter]
+                for active_adapter in module_active_adapters(lora_module)
+            }
+            for lora_module in self.lora_modules
+        ]
+        self.enable_adapters = enable_adapters
+
+    def __enter__(self) -> None:
+        for lora_module in self.lora_modules:
+            for active_adapter in module_active_adapters(lora_module):
+                if active_adapter not in self.enable_adapters:
+                    lora_module.set_scale(active_adapter,0)
+
+    def __exit__(
+        self,
+        exc_type: Optional[Type[BaseException]],
+        exc_val: Optional[BaseException],
+        exc_tb: Optional[Any],
+    ) -> None:
+        for i, lora_module in enumerate(self.lora_modules):
+            for active_adapter in module_active_adapters(lora_module):
+                lora_module.set_scale(active_adapter,self.active_adapter_scales[i][active_adapter])