fix: fix problems with y architecture and checkpoint

examples/y_architecture_example.py

@@ -13,8 +13,8 @@ from torch.utils.data import DataLoader
 
 # ##############################################################################
 
-if __name__ == "__main__":
 
+def main():
     # ------------------------------------------------------------
     # DATA
     # ------------------------------------------------------------
@@ -51,7 +51,7 @@ if __name__ == "__main__":
     # Create Model
     model = GMLVQ(hyperparameters)
 
-    print(model)
+    print(model.hparams)
 
     # ------------------------------------------------------------
     # TRAINING
@@ -74,15 +74,27 @@ if __name__ == "__main__":
     vis = VisGMLVQ2D(data=train_ds)
 
     # Define trainer
-    trainer = pl.Trainer(
-        callbacks=[
-            vis,
-            stopping_criterion,
-            es,
-            PlotLambdaMatrixToTensorboard(),
-        ],
-        max_epochs=1000,
-    )
+    trainer = pl.Trainer(callbacks=[
+        vis,
+        stopping_criterion,
+        es,
+        PlotLambdaMatrixToTensorboard(),
+    ], )
 
     # Train
     trainer.fit(model, train_loader)
+
+    # Manual save
+    trainer.save_checkpoint("./y_arch.ckpt")
+
+    # Load saved model
+    new_model = GMLVQ.load_from_checkpoint(
+        checkpoint_path="./y_arch.ckpt",
+        strict=True,
+    )
+
+    print(new_model.hparams)
+
+
+if __name__ == "__main__":
+    main()

prototorch/y/architectures/base.py

@@ -3,8 +3,11 @@ Proto Y Architecture
 
 Network architecture for Component based Learning.
 """
+from __future__ import annotations
+
 from dataclasses import dataclass
 from typing import (
+    Any,
     Callable,
     Dict,
     Set,
@@ -23,15 +26,20 @@ class BaseYArchitecture(pl.LightningModule):
         ...
 
     # Fields
-    registered_metrics: Dict[Type[Metric], Metric] = {}
-    registered_metric_callbacks: Dict[Type[Metric], Set[Callable]] = {}
+    registered_metrics: dict[type[Metric], Metric] = {}
+    registered_metric_callbacks: dict[type[Metric], set[Callable]] = {}
 
     # Type Hints for Necessary Fields
     components_layer: torch.nn.Module
 
     def __init__(self, hparams) -> None:
+        if type(hparams) is dict:
+            hparams = self.HyperParameters(**hparams)
+
         super().__init__()
 
+        self.save_hyperparameters(hparams.__dict__)
+
         # Common Steps
         self.init_components(hparams)
         self.init_latent(hparams)
@@ -165,7 +173,7 @@ class BaseYArchitecture(pl.LightningModule):
     def register_torchmetric(
         self,
         name: Callable,
-        metric: Type[Metric],
+        metric: type[Metric],
         **metric_kwargs,
     ):
         if metric not in self.registered_metrics:
@@ -210,3 +218,9 @@ class BaseYArchitecture(pl.LightningModule):
     # Other Hooks
     def training_epoch_end(self, outs) -> None:
         self.update_metrics_epoch()
+
+    def on_save_checkpoint(self, checkpoint: dict[str, Any]) -> None:
+        checkpoint["hyper_parameters"] = {
+            'hparams': checkpoint["hyper_parameters"]
+        }
+        return super().on_save_checkpoint(checkpoint)

prototorch/y/architectures/optimization.py

@@ -24,17 +24,11 @@ class SingleLearningRateMixin(BaseYArchitecture):
         lr: float = 0.1
         optimizer: Type[torch.optim.Optimizer] = torch.optim.Adam
 
-    # Steps
-    # ----------------------------------------------------------------------------------------------------
-    def __init__(self, hparams: HyperParameters) -> None:
-        super().__init__(hparams)
-        self.lr = hparams.lr
-        self.optimizer = hparams.optimizer
-
     # Hooks
     # ----------------------------------------------------------------------------------------------------
     def configure_optimizers(self):
-        return self.optimizer(self.parameters(), lr=self.lr)  # type: ignore
+        return self.hparams.optimizer(self.parameters(),
+                                      lr=self.hparams.lr)  # type: ignore
 
 
 class MultipleLearningRateMixin(BaseYArchitecture):
@@ -55,31 +49,24 @@ class MultipleLearningRateMixin(BaseYArchitecture):
         lr: dict = field(default_factory=lambda: dict())
         optimizer: Type[torch.optim.Optimizer] = torch.optim.Adam
 
-    # Steps
-    # ----------------------------------------------------------------------------------------------------
-    def __init__(self, hparams: HyperParameters) -> None:
-        super().__init__(hparams)
-        self.lr = hparams.lr
-        self.optimizer = hparams.optimizer
-
     # Hooks
     # ----------------------------------------------------------------------------------------------------
     def configure_optimizers(self):
         optimizers = []
-        for name, lr in self.lr.items():
+        for name, lr in self.hparams.lr.items():
             if not hasattr(self, name):
                 raise ValueError(f"{name} is not a parameter of {self}")
             else:
                 model_part = getattr(self, name)
                 if isinstance(model_part, Parameter):
                     optimizers.append(
-                        self.optimizer(
+                        self.hparams.optimizer(
                             [model_part],
                             lr=lr,  # type: ignore
                         ))
                 elif hasattr(model_part, "parameters"):
                     optimizers.append(
-                        self.optimizer(
+                        self.hparams.optimizer(
                             model_part.parameters(),
                             lr=lr,  # type: ignore
                         ))

prototorch/y/library/__init__.py

@@ -1,5 +1,7 @@
 from .glvq import GLVQ
+from .gmlvq import GMLVQ
 
 __all__ = [
     "GLVQ",
+    "GMLVQ",
 ]