Fix default dtype of classifier head

modeling_chatglm.py

@@ -1131,7 +1131,7 @@ class ChatGLMForSequenceClassification(ChatGLMPreTrainedModel):
         self.num_labels = config.num_labels
         self.transformer = ChatGLMModel(config, empty_init=empty_init, device=device)
 
-        self.classifier_head = nn.Linear(config.hidden_size, config.num_labels, bias=True, dtype=torch.half)
+        self.classifier_head = nn.Linear(config.hidden_size, config.num_labels, bias=True, dtype=config.torch_dtype)
         if config.classifier_dropout is not None:
             self.dropout = nn.Dropout(config.classifier_dropout)
         else: