[Fix] unwantted bias in InternLM Model (#740)

vllm/model_executor/models/internlm.py

@@ -7,15 +7,15 @@ from transformers import LlamaConfig
 
 from vllm.model_executor.input_metadata import InputMetadata
 from vllm.model_executor.layers.activation import SiluAndMul
-from vllm.model_executor.layers.layernorm import RMSNorm
 from vllm.model_executor.layers.attention import PagedAttentionWithRoPE
+from vllm.model_executor.layers.layernorm import RMSNorm
 from vllm.model_executor.layers.sampler import Sampler
-from vllm.model_executor.weight_utils import (hf_model_weights_iterator,
-                                              load_tensor_parallel_weights)
 from vllm.model_executor.parallel_utils.parallel_state import (
     get_tensor_model_parallel_rank, get_tensor_model_parallel_world_size)
 from vllm.model_executor.parallel_utils.tensor_parallel import (
-    VocabParallelEmbedding, ColumnParallelLinear, RowParallelLinear)
+    ColumnParallelLinear, RowParallelLinear, VocabParallelEmbedding)
+from vllm.model_executor.weight_utils import (hf_model_weights_iterator,
+                                              load_tensor_parallel_weights)
 from vllm.sequence import SequenceOutputs
 
 KVCache = Tuple[torch.Tensor, torch.Tensor]
@@ -32,12 +32,12 @@ class InternLMMLP(nn.Module):
         super().__init__()
         self.gate_up_proj = ColumnParallelLinear(hidden_size,
                                                  2 * intermediate_size,
-                                                 bias=True,
+                                                 bias=False,
                                                  gather_output=False,
                                                  perform_initialization=False)
         self.down_proj = RowParallelLinear(intermediate_size,
                                            hidden_size,
-                                           bias=True,
+                                           bias=False,
                                            input_is_parallel=True,
                                            perform_initialization=False)
         if hidden_act != "silu":