Make cast_to a nop if weight is already good.

6 months ago · 538cb068bc
parent 1b3eee672c
commit 538cb068bc
1 changed files with 2 additions and 0 deletions
--- a/comfy/ops.py
+++ b/comfy/ops.py
@ -21,6 +21,8 @@ import comfy.model_management


 def cast_to(weight, dtype=None, device=None, non_blocking=False):
+    if (dtype is None or weight.dtype == dtype) and (device is None or weight.device == device):
+        return weight
    r = torch.empty_like(weight, dtype=dtype, device=device)
    r.copy_(weight, non_blocking=non_blocking)
    return r