diff options
| -rw-r--r-- | modules/textual_inversion/textual_inversion.py | 51 | ||||
| -rw-r--r-- | modules/ui.py | 2 |
2 files changed, 48 insertions, 5 deletions
diff --git a/modules/textual_inversion/textual_inversion.py b/modules/textual_inversion/textual_inversion.py index 5965c5a0..c64a4598 100644 --- a/modules/textual_inversion/textual_inversion.py +++ b/modules/textual_inversion/textual_inversion.py @@ -189,8 +189,6 @@ def train_embedding(embedding_name, learn_rate, data_root, log_directory, traini embedding = hijack.embedding_db.word_embeddings[embedding_name]
embedding.vec.requires_grad = True
- optimizer = torch.optim.AdamW([embedding.vec], lr=learn_rate)
-
losses = torch.zeros((32,))
last_saved_file = "<none>"
@@ -203,12 +201,24 @@ def train_embedding(embedding_name, learn_rate, data_root, log_directory, traini tr_img_len = len([os.path.join(data_root, file_path) for file_path in os.listdir(data_root)])
epoch_len = (tr_img_len * num_repeats) + tr_img_len
+ scheduleIter = iter(LearnSchedule(learn_rate, steps, ititial_step))
+ (learn_rate, end_step) = next(scheduleIter)
+ print(f'Training at rate of {learn_rate} until step {end_step}')
+
+ optimizer = torch.optim.AdamW([embedding.vec], lr=learn_rate)
+
pbar = tqdm.tqdm(enumerate(ds), total=steps-ititial_step)
for i, (x, text) in pbar:
embedding.step = i + ititial_step
- if embedding.step > steps:
- break
+ if embedding.step > end_step:
+ try:
+ (learn_rate, end_step) = next(scheduleIter)
+ except:
+ break
+ tqdm.tqdm.write(f'Training at rate of {learn_rate} until step {end_step}')
+ for pg in optimizer.param_groups:
+ pg['lr'] = learn_rate
if shared.state.interrupted:
break
@@ -277,3 +287,36 @@ Last saved image: {html.escape(last_saved_image)}<br/> return embedding, filename
+class LearnSchedule:
+ def __init__(self, learn_rate, max_steps, cur_step=0):
+ pairs = learn_rate.split(',')
+ self.rates = []
+ self.it = 0
+ self.maxit = 0
+ for i, pair in enumerate(pairs):
+ tmp = pair.split(':')
+ if len(tmp) == 2:
+ step = int(tmp[1])
+ if step > cur_step:
+ self.rates.append((float(tmp[0]), min(step, max_steps)))
+ self.maxit += 1
+ if step > max_steps:
+ return
+ elif step == -1:
+ self.rates.append((float(tmp[0]), max_steps))
+ self.maxit += 1
+ return
+ else:
+ self.rates.append((float(tmp[0]), max_steps))
+ self.maxit += 1
+ return
+
+ def __iter__(self):
+ return self
+
+ def __next__(self):
+ if self.it < self.maxit:
+ self.it += 1
+ return self.rates[self.it - 1]
+ else:
+ raise StopIteration
diff --git a/modules/ui.py b/modules/ui.py index 8c06ad7c..c9e8355b 100644 --- a/modules/ui.py +++ b/modules/ui.py @@ -1047,7 +1047,7 @@ def create_ui(wrap_gradio_gpu_call): with gr.Group():
gr.HTML(value="<p style='margin-bottom: 0.7em'>Train an embedding; must specify a directory with a set of 1:1 ratio images</p>")
train_embedding_name = gr.Dropdown(label='Embedding', choices=sorted(sd_hijack.model_hijack.embedding_db.word_embeddings.keys()))
- learn_rate = gr.Number(label='Learning rate', value=5.0e-03)
+ learn_rate = gr.Textbox(label='Learning rate', placeholder="Learning rate", value = "5.0e-03")
dataset_directory = gr.Textbox(label='Dataset directory', placeholder="Path to directory with input images")
log_directory = gr.Textbox(label='Log directory', placeholder="Path to directory where to write outputs", value="textual_inversion")
template_file = gr.Textbox(label='Prompt template file', value=os.path.join(script_path, "textual_inversion_templates", "style_filewords.txt"))
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