Fix incorrect seed initialization when args.seed is 0 (#10964)

* Fix seed initialization to handle args.seed = 0 correctly

* Apply style fixes

---------
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

examples/advanced_diffusion_training/train_dreambooth_lora_flux_advanced.py

@@ -227,7 +227,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     autocast_ctx = nullcontext()
 
     with autocast_ctx:

examples/advanced_diffusion_training/train_dreambooth_lora_sd15_advanced.py

@@ -1883,7 +1883,11 @@ def main(args):
                 pipeline.set_progress_bar_config(disable=True)
 
                 # run inference
-                generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+                generator = (
+                    torch.Generator(device=accelerator.device).manual_seed(args.seed)
+                    if args.seed is not None
+                    else None
+                )
                 pipeline_args = {"prompt": args.validation_prompt}
 
                 if torch.backends.mps.is_available():
@@ -1987,7 +1991,9 @@ def main(args):
                 )
             # run inference
             pipeline = pipeline.to(accelerator.device)
-            generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+            generator = (
+                torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
+            )
             images = [
                 pipeline(args.validation_prompt, num_inference_steps=25, generator=generator).images[0]
                 for _ in range(args.num_validation_images)

examples/advanced_diffusion_training/train_dreambooth_lora_sdxl_advanced.py

@@ -269,7 +269,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     # Currently the context determination is a bit hand-wavy. We can improve it in the future if there's a better
     # way to condition it. Reference: https://github.com/huggingface/diffusers/pull/7126#issuecomment-1968523051
     if torch.backends.mps.is_available() or "playground" in args.pretrained_model_name_or_path:

examples/cogvideo/train_cogvideox_image_to_video_lora.py

@@ -722,7 +722,7 @@ def log_validation(
     # pipe.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
 
     videos = []
     for _ in range(args.num_validation_videos):

examples/cogvideo/train_cogvideox_lora.py

@@ -739,7 +739,7 @@ def log_validation(
     # pipe.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
 
     videos = []
     for _ in range(args.num_validation_videos):

examples/custom_diffusion/train_custom_diffusion.py

@@ -1334,7 +1334,9 @@ def main(args):
 
         # run inference
         if args.validation_prompt and args.num_validation_images > 0:
-            generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+            generator = (
+                torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
+            )
             images = [
                 pipeline(args.validation_prompt, num_inference_steps=25, generator=generator, eta=1.0).images[0]
                 for _ in range(args.num_validation_images)

examples/dreambooth/train_dreambooth_flux.py

@@ -172,7 +172,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     # autocast_ctx = torch.autocast(accelerator.device.type) if not is_final_validation else nullcontext()
     autocast_ctx = nullcontext()
 

examples/dreambooth/train_dreambooth_lora.py

@@ -150,7 +150,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
 
     if args.validation_images is None:
         images = []

examples/dreambooth/train_dreambooth_lora_flux.py

@@ -181,7 +181,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     # autocast_ctx = torch.autocast(accelerator.device.type) if not is_final_validation else nullcontext()
     autocast_ctx = nullcontext()
 

examples/dreambooth/train_dreambooth_lora_lumina2.py

@@ -167,7 +167,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     autocast_ctx = torch.autocast(accelerator.device.type) if not is_final_validation else nullcontext()
 
     with autocast_ctx:

examples/dreambooth/train_dreambooth_lora_sana.py

@@ -170,7 +170,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
 
     images = [pipeline(**pipeline_args, generator=generator).images[0] for _ in range(args.num_validation_images)]
 

examples/dreambooth/train_dreambooth_lora_sd3.py

@@ -199,7 +199,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     # autocast_ctx = torch.autocast(accelerator.device.type) if not is_final_validation else nullcontext()
     autocast_ctx = nullcontext()
 

examples/dreambooth/train_dreambooth_lora_sdxl.py

@@ -207,7 +207,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     # Currently the context determination is a bit hand-wavy. We can improve it in the future if there's a better
     # way to condition it. Reference: https://github.com/huggingface/diffusers/pull/7126#issuecomment-1968523051
     if torch.backends.mps.is_available() or "playground" in args.pretrained_model_name_or_path:

examples/dreambooth/train_dreambooth_sd3.py

@@ -175,7 +175,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     # autocast_ctx = torch.autocast(accelerator.device.type) if not is_final_validation else nullcontext()
     autocast_ctx = nullcontext()
 

examples/text_to_image/train_text_to_image_lora_sdxl.py

@@ -137,7 +137,7 @@ def log_validation(
     pipeline.set_progress_bar_config(disable=True)
 
     # run inference
-    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+    generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
     pipeline_args = {"prompt": args.validation_prompt}
     if torch.backends.mps.is_available():
         autocast_ctx = nullcontext()

examples/text_to_image/train_text_to_image_sdxl.py

@@ -1241,7 +1241,11 @@ def main(args):
                 pipeline.set_progress_bar_config(disable=True)
 
                 # run inference
-                generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+                generator = (
+                    torch.Generator(device=accelerator.device).manual_seed(args.seed)
+                    if args.seed is not None
+                    else None
+                )
                 pipeline_args = {"prompt": args.validation_prompt}
 
                 with autocast_ctx:
@@ -1305,7 +1309,9 @@ def main(args):
         images = []
         if args.validation_prompt and args.num_validation_images > 0:
             pipeline = pipeline.to(accelerator.device)
-            generator = torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed else None
+            generator = (
+                torch.Generator(device=accelerator.device).manual_seed(args.seed) if args.seed is not None else None
+            )
 
             with autocast_ctx:
                 images = [