[Bugfix] Fix hybrid model tests (vllm-project#17182)

Signed-off-by: DarkLight1337 <[email protected]>
Signed-off-by: Mu Huai <[email protected]>

Author: DarkLight1337

tests/conftest.py

@@ -531,7 +531,10 @@ def _hidden_states_to_seq_logprobs(
         for _, hidden_state in enumerate(hidden_states):
             last_hidden_states = hidden_state[-1][0]
             logits = torch.matmul(
-                last_hidden_states.to(output_embeddings.weight.device),
+                last_hidden_states.to(
+                    device=output_embeddings.weight.device,
+                    dtype=output_embeddings.weight.dtype,
+                ),
                 output_embeddings.weight.t(),
             )
             if getattr(output_embeddings, "bias", None) is not None: