Fix issue with device placement on te

toolkit/models/wan21/wan21.py

@@ -83,6 +83,27 @@ scheduler_config = {
 
 
 class AggressiveWanUnloadPipeline(WanPipeline):
+    def __init__(
+        self,
+        tokenizer: AutoTokenizer,
+        text_encoder: UMT5EncoderModel,
+        transformer: WanTransformer3DModel,
+        vae: AutoencoderKLWan,
+        scheduler: FlowMatchEulerDiscreteScheduler,
+        device: torch.device = torch.device("cuda"),
+    ):
+        super().__init__(
+            tokenizer=tokenizer,
+            text_encoder=text_encoder,
+            transformer=transformer,
+            vae=vae,
+            scheduler=scheduler,
+        )
+        self._exec_device = device
+    @property
+    def _execution_device(self):
+        return self._exec_device
+    
     def __call__(
         self: WanPipeline,
         prompt: Union[str, List[str]] = None,
@@ -459,6 +480,7 @@ class Wan21(BaseModel):
                 text_encoder=self.text_encoder,
                 tokenizer=self.tokenizer,
                 scheduler=scheduler,
+                device=self.device_torch
             )
         else:
             pipeline = WanPipeline(
@@ -540,6 +562,8 @@ class Wan21(BaseModel):
         return noise_pred
 
     def get_prompt_embeds(self, prompt: str) -> PromptEmbeds:
+        if self.pipeline.text_encoder.device != self.device_torch:
+            self.pipeline.text_encoder.to(self.device_torch)
         prompt_embeds, _ = self.pipeline.encode_prompt(
             prompt,
             do_classifier_free_guidance=False,