From 300deaa789a0321f32d5e7f04d9860eaa258110e Mon Sep 17 00:00:00 2001
From: Volpeon <git@volpeon.ink>
Date: Tue, 4 Oct 2022 19:22:22 +0200
Subject: Add Textual Inversion with class dataset (a la Dreambooth)

---
 dreambooth.py | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

(limited to 'dreambooth.py')

diff --git a/dreambooth.py b/dreambooth.py
index aedf25c..0c5c42a 100644
--- a/dreambooth.py
+++ b/dreambooth.py
@@ -24,7 +24,6 @@ from pipelines.stable_diffusion.vlpn_stable_diffusion import VlpnStableDiffusion
 import json
 
 from data.dreambooth.csv import CSVDataModule
-from data.dreambooth.prompt import PromptDataset
 
 logger = get_logger(__name__)
 
@@ -122,7 +121,7 @@ def parse_args():
     parser.add_argument(
         "--learning_rate",
         type=float,
-        default=3e-6,
+        default=1e-6,
         help="Initial learning rate (after the potential warmup period) to use.",
     )
     parser.add_argument(
@@ -219,16 +218,9 @@ def parse_args():
     parser.add_argument(
         "--sample_steps",
         type=int,
-        default=40,
+        default=30,
         help="Number of steps for sample generation. Higher values will result in more detailed samples, but longer runtimes.",
     )
-    parser.add_argument(
-        "--class_data_dir",
-        type=str,
-        default=None,
-        required=False,
-        help="A folder containing the training data of class images.",
-    )
     parser.add_argument(
         "--prior_loss_weight",
         type=float,
@@ -311,7 +303,7 @@ class Checkpointer:
         self.output_dir = output_dir
         self.instance_identifier = instance_identifier
         self.sample_image_size = sample_image_size
-        self.seed = seed
+        self.seed = seed or torch.random.seed()
         self.sample_batches = sample_batches
         self.sample_batch_size = sample_batch_size
 
@@ -406,6 +398,8 @@ class Checkpointer:
         del unwrapped
         del scheduler
         del pipeline
+        del generator
+        del stable_latents
 
         if torch.cuda.is_available():
             torch.cuda.empty_cache()
@@ -523,11 +517,13 @@ def main():
         tokenizer=tokenizer,
         instance_identifier=args.instance_identifier,
         class_identifier=args.class_identifier,
+        class_subdir="db_cls",
         size=args.resolution,
         repeats=args.repeats,
         center_crop=args.center_crop,
         valid_set_size=args.sample_batch_size*args.sample_batches,
-        collate_fn=collate_fn)
+        collate_fn=collate_fn
+    )
 
     datamodule.prepare_data()
     datamodule.setup()
@@ -587,7 +583,7 @@ def main():
         sample_image_size=args.sample_image_size,
         sample_batch_size=args.sample_batch_size,
         sample_batches=args.sample_batches,
-        seed=args.seed or torch.random.seed()
+        seed=args.seed
     )
 
     # Scheduler and math around the number of training steps.
@@ -699,8 +695,7 @@ def main():
                         loss = F.mse_loss(noise_pred, noise, reduction="none").mean([1, 2, 3]).mean()
 
                         # Compute prior loss
-                        prior_loss = F.mse_loss(noise_pred_prior, noise_prior,
-                                                reduction="none").mean([1, 2, 3]).mean()
+                        prior_loss = F.mse_loss(noise_pred_prior, noise_prior, reduction="none").mean([1, 2, 3]).mean()
 
                         # Add the prior loss to the instance loss.
                         loss = loss + args.prior_loss_weight * prior_loss
-- 
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