Update app.py

app.py

@@ -3,8 +3,10 @@ from diffusers import StableDiffusionXLPipeline, UNet2DConditionModel, EulerDisc
 import torch
 from huggingface_hub import hf_hub_download
 from safetensors.torch import load_file
+import gc
 import spaces
 
+
 vae = AutoencoderKL.from_pretrained("madebyollin/sdxl-vae-fp16-fix", torch_dtype=torch.float16)
 
 ### SDXL Turbo #### 
@@ -33,6 +35,7 @@ pipe_lightning = StableDiffusionXLPipeline.from_pretrained(base,
                                                            variant="fp16"
                                                           )#.to("cuda")
 del unet
+gc.collect()
 pipe_lightning.scheduler = EulerDiscreteScheduler.from_config(pipe_lightning.scheduler.config, timestep_spacing="trailing", prediction_type="sample")
 #pipe_lightning.to("cuda")
 
@@ -55,6 +58,7 @@ pipe_hyper = StableDiffusionXLPipeline.from_pretrained(base,
 pipe_hyper.scheduler = LCMScheduler.from_config(pipe_hyper.scheduler.config)
 #pipe_hyper.to("cuda")
 del unet
+gc.collect()
 
 @spaces.GPU
 def run_comparison(prompt):