resolve conflict - first revert

Author: aria1th

modules/hypernetworks/hypernetwork.py

@@ -21,7 +21,6 @@
 from collections import defaultdict, deque
 from statistics import stdev, mean
 
-optimizer_dict = {optim_name : cls_obj for optim_name, cls_obj in inspect.getmembers(torch.optim, inspect.isclass) if optim_name != "Optimizer"}
 
 class HypernetworkModule(torch.nn.Module):
     multiplier = 1.0
@@ -34,9 +33,12 @@ class HypernetworkModule(torch.nn.Module):
         "tanh": torch.nn.Tanh,
         "sigmoid": torch.nn.Sigmoid,
     }
-    activation_dict.update({cls_name.lower(): cls_obj for cls_name, cls_obj in inspect.getmembers(torch.nn.modules.activation) if inspect.isclass(cls_obj) and cls_obj.__module__ == 'torch.nn.modules.activation'})
+    activation_dict.update(
+        {cls_name.lower(): cls_obj for cls_name, cls_obj in inspect.getmembers(torch.nn.modules.activation) if
+         inspect.isclass(cls_obj) and cls_obj.__module__ == 'torch.nn.modules.activation'})
 
-    def __init__(self, dim, state_dict=None, layer_structure=None, activation_func=None, weight_init='Normal', add_layer_norm=False, use_dropout=False):
+    def __init__(self, dim, state_dict=None, layer_structure=None, activation_func=None, weight_init='Normal',
+                 add_layer_norm=False, use_dropout=False):
         super().__init__()
 
         assert layer_structure is not None, "layer_structure must not be None"
@@ -47,7 +49,7 @@ def __init__(self, dim, state_dict=None, layer_structure=None, activation_func=N
         for i in range(len(layer_structure) - 1):
 
             # Add a fully-connected layer
-            linears.append(torch.nn.Linear(int(dim * layer_structure[i]), int(dim * layer_structure[i+1])))
+            linears.append(torch.nn.Linear(int(dim * layer_structure[i]), int(dim * layer_structure[i + 1])))
 
             # Add an activation func
             if activation_func == "linear" or activation_func is None:
@@ -59,7 +61,7 @@ def __init__(self, dim, state_dict=None, layer_structure=None, activation_func=N
 
             # Add layer normalization
             if add_layer_norm:
-                linears.append(torch.nn.LayerNorm(int(dim * layer_structure[i+1])))
+                linears.append(torch.nn.LayerNorm(int(dim * layer_structure[i + 1])))
 
             # Add dropout expect last layer
             if use_dropout and i < len(layer_structure) - 3:
@@ -128,7 +130,8 @@ class Hypernetwork:
     filename = None
     name = None
 
-    def __init__(self, name=None, enable_sizes=None, layer_structure=None, activation_func=None, weight_init=None, add_layer_norm=False, use_dropout=False):
+    def __init__(self, name=None, enable_sizes=None, layer_structure=None, activation_func=None, weight_init=None,
+                 add_layer_norm=False, use_dropout=False):
         self.filename = None
         self.name = name
         self.layers = {}
@@ -140,13 +143,13 @@ def __init__(self, name=None, enable_sizes=None, layer_structure=None, activatio
         self.weight_init = weight_init
         self.add_layer_norm = add_layer_norm
         self.use_dropout = use_dropout
-        self.optimizer_name = None
-        self.optimizer_state_dict = None
 
         for size in enable_sizes or []:
             self.layers[size] = (
-                HypernetworkModule(size, None, self.layer_structure, self.activation_func, self.weight_init, self.add_layer_norm, self.use_dropout),
-                HypernetworkModule(size, None, self.layer_structure, self.activation_func, self.weight_init, self.add_layer_norm, self.use_dropout),
+                HypernetworkModule(size, None, self.layer_structure, self.activation_func, self.weight_init,
+                                   self.add_layer_norm, self.use_dropout),
+                HypernetworkModule(size, None, self.layer_structure, self.activation_func, self.weight_init,
+                                   self.add_layer_norm, self.use_dropout),
             )
 
     def weights(self):
@@ -161,7 +164,6 @@ def weights(self):
 
     def save(self, filename):
         state_dict = {}
-        optimizer_saved_dict = {}
 
         for k, v in self.layers.items():
             state_dict[k] = (v[0].state_dict(), v[1].state_dict())
@@ -175,14 +177,8 @@ def save(self, filename):
         state_dict['use_dropout'] = self.use_dropout
         state_dict['sd_checkpoint'] = self.sd_checkpoint
         state_dict['sd_checkpoint_name'] = self.sd_checkpoint_name
-        if self.optimizer_name is not None:
-            optimizer_saved_dict['optimizer_name'] = self.optimizer_name
 
         torch.save(state_dict, filename)
-        if self.optimizer_state_dict:
-            optimizer_saved_dict['hash'] = sd_models.model_hash(filename)
-            optimizer_saved_dict['optimizer_state_dict'] = self.optimizer_state_dict
-            torch.save(optimizer_saved_dict, filename + '.optim')
 
     def load(self, filename):
         self.filename = filename
@@ -202,23 +198,13 @@ def load(self, filename):
         self.use_dropout = state_dict.get('use_dropout', False)
         print(f"Dropout usage is set to {self.use_dropout}")
 
-        optimizer_saved_dict = torch.load(self.filename + '.optim', map_location = 'cpu') if os.path.exists(self.filename + '.optim') else {}
-        self.optimizer_name = optimizer_saved_dict.get('optimizer_name', 'AdamW')
-        print(f"Optimizer name is {self.optimizer_name}")
-        if sd_models.model_hash(filename) == optimizer_saved_dict.get('hash', None):
-            self.optimizer_state_dict = optimizer_saved_dict.get('optimizer_state_dict', None)
-        else:
-            self.optimizer_state_dict = None
-        if self.optimizer_state_dict:
-            print("Loaded existing optimizer from checkpoint")
-        else:
-            print("No saved optimizer exists in checkpoint")
-
         for size, sd in state_dict.items():
             if type(size) == int:
                 self.layers[size] = (
-                    HypernetworkModule(size, sd[0], self.layer_structure, self.activation_func, self.weight_init, self.add_layer_norm, self.use_dropout),
-                    HypernetworkModule(size, sd[1], self.layer_structure, self.activation_func, self.weight_init, self.add_layer_norm, self.use_dropout),
+                    HypernetworkModule(size, sd[0], self.layer_structure, self.activation_func, self.weight_init,
+                                       self.add_layer_norm, self.use_dropout),
+                    HypernetworkModule(size, sd[1], self.layer_structure, self.activation_func, self.weight_init,
+                                       self.add_layer_norm, self.use_dropout),
                 )
 
         self.name = state_dict.get('name', self.name)
@@ -233,7 +219,7 @@ def list_hypernetworks(path):
         name = os.path.splitext(os.path.basename(filename))[0]
         # Prevent a hypothetical "None.pt" from being listed.
         if name != "None":
-            res[name + f"({sd_models.model_hash(filename)})"] = filename
+            res[name] = filename
     return res
 
 
@@ -330,7 +316,7 @@ def statistics(data):
         std = 0
     else:
         std = stdev(data)
-    total_information = f"loss:{mean(data):.3f}" + u"\u00B1" + f"({std/ (len(data) ** 0.5):.3f})"
+    total_information = f"loss:{mean(data):.3f}" + u"\u00B1" + f"({std / (len(data) ** 0.5):.3f})"
     recent_data = data[-32:]
     if len(recent_data) < 2:
         std = 0
@@ -340,7 +326,7 @@ def statistics(data):
     return total_information, recent_information
 
 
-def report_statistics(loss_info:dict):
+def report_statistics(loss_info: dict):
     keys = sorted(loss_info.keys(), key=lambda x: sum(loss_info[x]) / len(loss_info[x]))
     for key in keys:
         try:
@@ -352,14 +338,18 @@ def report_statistics(loss_info:dict):
             print(e)
 
 
-
-def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log_directory, training_width, training_height, steps, create_image_every, save_hypernetwork_every, template_file, preview_from_txt2img, preview_prompt, preview_negative_prompt, preview_steps, preview_sampler_index, preview_cfg_scale, preview_seed, preview_width, preview_height):
+def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log_directory, training_width,
+                       training_height, steps, create_image_every, save_hypernetwork_every, template_file,
+                       preview_from_txt2img, preview_prompt, preview_negative_prompt, preview_steps,
+                       preview_sampler_index, preview_cfg_scale, preview_seed, preview_width, preview_height):
     # images allows training previews to have infotext. Importing it at the top causes a circular import problem.
     from modules import images
 
     save_hypernetwork_every = save_hypernetwork_every or 0
     create_image_every = create_image_every or 0
-    textual_inversion.validate_train_inputs(hypernetwork_name, learn_rate, batch_size, data_root, template_file, steps, save_hypernetwork_every, create_image_every, log_directory, name="hypernetwork")
+    textual_inversion.validate_train_inputs(hypernetwork_name, learn_rate, batch_size, data_root, template_file, steps,
+                                            save_hypernetwork_every, create_image_every, log_directory,
+                                            name="hypernetwork")
 
     path = shared.hypernetworks.get(hypernetwork_name, None)
     shared.loaded_hypernetwork = Hypernetwork()
@@ -379,7 +369,6 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
     else:
         hypernetwork_dir = None
 
-    hypernetwork_name = hypernetwork_name.rsplit('(', 1)[0]
     if create_image_every > 0:
         images_dir = os.path.join(log_directory, "images")
         os.makedirs(images_dir, exist_ok=True)
@@ -395,39 +384,34 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
         return hypernetwork, filename
 
     scheduler = LearnRateScheduler(learn_rate, steps, ititial_step)
-    
+
     # dataset loading may take a while, so input validations and early returns should be done before this
     shared.state.textinfo = f"Preparing dataset from {html.escape(data_root)}..."
     with torch.autocast("cuda"):
-        ds = modules.textual_inversion.dataset.PersonalizedBase(data_root=data_root, width=training_width, height=training_height, repeats=shared.opts.training_image_repeats_per_epoch, placeholder_token=hypernetwork_name, model=shared.sd_model, device=devices.device, template_file=template_file, include_cond=True, batch_size=batch_size)
+        ds = modules.textual_inversion.dataset.PersonalizedBase(data_root=data_root, width=training_width,
+                                                                height=training_height,
+                                                                repeats=shared.opts.training_image_repeats_per_epoch,
+                                                                placeholder_token=hypernetwork_name,
+                                                                model=shared.sd_model, device=devices.device,
+                                                                template_file=template_file, include_cond=True,
+                                                                batch_size=batch_size)
 
     if unload:
         shared.sd_model.cond_stage_model.to(devices.cpu)
         shared.sd_model.first_stage_model.to(devices.cpu)
 
     size = len(ds.indexes)
-    loss_dict = defaultdict(lambda : deque(maxlen = 1024))
+    loss_dict = defaultdict(lambda: deque(maxlen=1024))
     losses = torch.zeros((size,))
     previous_mean_losses = [0]
     previous_mean_loss = 0
     print("Mean loss of {} elements".format(size))
-    
+
     weights = hypernetwork.weights()
     for weight in weights:
         weight.requires_grad = True
-    # Here we use optimizer from saved HN, or we can specify as UI option.
-    if (optimizer_name := hypernetwork.optimizer_name) in optimizer_dict:
-        optimizer = optimizer_dict[hypernetwork.optimizer_name](params=weights, lr=scheduler.learn_rate)
-    else:
-        print(f"Optimizer type {optimizer_name} is not defined!")
-        optimizer = torch.optim.AdamW(params=weights, lr=scheduler.learn_rate)
-        optimizer_name = 'AdamW'
-    if hypernetwork.optimizer_state_dict:  # This line must be changed if Optimizer type can be different from saved optimizer.
-        try:
-            optimizer.load_state_dict(hypernetwork.optimizer_state_dict)
-        except RuntimeError as e:
-            print("Cannot resume from saved optimizer!")
-            print(e)
+    # if optimizer == "AdamW": or else Adam / AdamW / SGD, etc...
+    optimizer = torch.optim.AdamW(weights, lr=scheduler.learn_rate)
 
     steps_without_grad = 0
 
@@ -441,7 +425,7 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
         if len(loss_dict) > 0:
             previous_mean_losses = [i[-1] for i in loss_dict.values()]
             previous_mean_loss = mean(previous_mean_losses)
-            
+
         scheduler.apply(optimizer, hypernetwork.step)
         if scheduler.finished:
             break
@@ -460,7 +444,7 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
             losses[hypernetwork.step % losses.shape[0]] = loss.item()
             for entry in entries:
                 loss_dict[entry.filename].append(loss.item())
-                
+
             optimizer.zero_grad()
             weights[0].grad = None
             loss.backward()
@@ -475,9 +459,9 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
 
         steps_done = hypernetwork.step + 1
 
-        if torch.isnan(losses[hypernetwork.step % losses.shape[0]]): 
+        if torch.isnan(losses[hypernetwork.step % losses.shape[0]]):
             raise RuntimeError("Loss diverged.")
-        
+
         if len(previous_mean_losses) > 1:
             std = stdev(previous_mean_losses)
         else:
@@ -489,11 +473,8 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
             # Before saving, change name to match current checkpoint.
             hypernetwork_name_every = f'{hypernetwork_name}-{steps_done}'
             last_saved_file = os.path.join(hypernetwork_dir, f'{hypernetwork_name_every}.pt')
-            hypernetwork.optimizer_name = optimizer_name
-            if shared.opts.save_optimizer_state:
-                hypernetwork.optimizer_state_dict = optimizer.state_dict()
             save_hypernetwork(hypernetwork, checkpoint, hypernetwork_name, last_saved_file)
-            hypernetwork.optimizer_state_dict = None  # dereference it after saving, to save memory.
+
         textual_inversion.write_loss(log_directory, "hypernetwork_loss.csv", hypernetwork.step, len(ds), {
             "loss": f"{previous_mean_loss:.7f}",
             "learn_rate": scheduler.learn_rate
@@ -529,15 +510,18 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
             preview_text = p.prompt
 
             processed = processing.process_images(p)
-            image = processed.images[0] if len(processed.images)>0 else None
+            image = processed.images[0] if len(processed.images) > 0 else None
 
             if unload:
                 shared.sd_model.cond_stage_model.to(devices.cpu)
                 shared.sd_model.first_stage_model.to(devices.cpu)
 
             if image is not None:
                 shared.state.current_image = image
-                last_saved_image, last_text_info = images.save_image(image, images_dir, "", p.seed, p.prompt, shared.opts.samples_format, processed.infotexts[0], p=p, forced_filename=forced_filename, save_to_dirs=False)
+                last_saved_image, last_text_info = images.save_image(image, images_dir, "", p.seed, p.prompt,
+                                                                     shared.opts.samples_format, processed.infotexts[0],
+                                                                     p=p, forced_filename=forced_filename,
+                                                                     save_to_dirs=False)
                 last_saved_image += f", prompt: {preview_text}"
 
         shared.state.job_no = hypernetwork.step
@@ -551,15 +535,12 @@ def train_hypernetwork(hypernetwork_name, learn_rate, batch_size, data_root, log
 Last saved image: {html.escape(last_saved_image)}<br/>
 </p>
 """
+
     report_statistics(loss_dict)
 
     filename = os.path.join(shared.cmd_opts.hypernetwork_dir, f'{hypernetwork_name}.pt')
-    hypernetwork.optimizer_name = optimizer_name
-    if shared.opts.save_optimizer_state:
-        hypernetwork.optimizer_state_dict = optimizer.state_dict()
     save_hypernetwork(hypernetwork, checkpoint, hypernetwork_name, filename)
-    del optimizer
-    hypernetwork.optimizer_state_dict = None  # dereference it after saving, to save memory.
+
     return hypernetwork, filename
 
 
@@ -576,4 +557,4 @@ def save_hypernetwork(hypernetwork, checkpoint, hypernetwork_name, filename):
         hypernetwork.sd_checkpoint = old_sd_checkpoint
         hypernetwork.sd_checkpoint_name = old_sd_checkpoint_name
         hypernetwork.name = old_hypernetwork_name
-        raise
+        raise