[Bugfix][Model]fix ernie45 moe gate&bias dtype to float32 (vllm-project#25936)

Signed-off-by: wangyafeng <wangyafeng@baidu.com>
Signed-off-by: xuebwang-amd <xuebwang@amd.com>

Author: CSWYF3634076

vllm/model_executor/models/ernie45_moe.py

@@ -120,11 +120,12 @@ def __init__(
         self.gate = ReplicatedLinear(config.hidden_size,
                                      config.moe_num_experts,
                                      bias=False,
+                                     params_dtype=torch.float32,
                                      quant_config=None,
                                      prefix=f"{prefix}.gate")
 
         self.gate.e_score_correction_bias = nn.Parameter(
-            torch.empty(config.moe_num_experts))
+            torch.empty(config.moe_num_experts, dtype=torch.float32))
 
         self.experts = FusedMoE(
             num_experts=config.moe_num_experts,
@@ -157,7 +158,7 @@ def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
         if self.has_shared_experts:
             shared_output = self.shared_experts(hidden_states)
 
-        router_logits, _ = self.gate(hidden_states)
+        router_logits, _ = self.gate(hidden_states.to(dtype=torch.float32))
 
         final_hidden_states = self.experts(hidden_states=hidden_states,
                                            router_logits=router_logits)

vllm/model_executor/models/ernie45_vl_moe.py

@@ -199,7 +199,7 @@ def __init__(
 
         assert config.moe_num_experts[0] == config.moe_num_experts[1]
         self.e_score_correction_bias = nn.Parameter(
-            torch.empty(2, config.moe_num_experts[0]))
+            torch.empty(2, config.moe_num_experts[0], dtype=torch.float32))
 
         assert text_moe_layer_start_index <= text_moe_layer_end_index
 
@@ -209,6 +209,7 @@ def __init__(
                 config.hidden_size,
                 config.moe_num_experts[0],
                 bias=False,
+                params_dtype=torch.float32,
                 quant_config=quant_config,
                 prefix=f"{prefix}.text_experts_gate")
 
@@ -238,6 +239,7 @@ def __init__(
                 config.hidden_size,
                 config.moe_num_experts[1],
                 bias=False,
+                params_dtype=torch.float32,
                 quant_config=quant_config,
                 prefix=f"{prefix}.vision_experts_gate")
 
@@ -288,7 +290,8 @@ def forward(
 
         if visual_token_mask is not None and visual_token_mask.all():
             # only vision modal input
-            router_logits, _ = self.vision_experts_gate(hidden_states)
+            router_logits, _ = self.vision_experts_gate(
+                hidden_states.to(dtype=torch.float32))
             final_hidden_states = self.vision_experts(
                 hidden_states=hidden_states, router_logits=router_logits)
         elif visual_token_mask is not None and visual_token_mask.any():
@@ -303,19 +306,21 @@ def forward(
             vision_hidden_states = hidden_states[visual_token_mask].reshape(
                 -1, self.hidden_size)
 
-            text_router_logits, _ = self.text_experts_gate(text_hidden_states)
+            text_router_logits, _ = self.text_experts_gate(
+                text_hidden_states.to(dtype=torch.float32))
             final_hidden_states[text_token_mask] = self.text_experts(
                 hidden_states=text_hidden_states,
                 router_logits=text_router_logits).flatten()
 
             vision_router_logits, _ = self.vision_experts_gate(
-                vision_hidden_states)
+                vision_hidden_states.to(dtype=torch.float32))
             final_hidden_states[visual_token_mask] = self.vision_experts(
                 hidden_states=vision_hidden_states,
                 router_logits=vision_router_logits).flatten()
         else:
             # only text modal input
-            text_router_logits, _ = self.text_experts_gate(hidden_states)
+            text_router_logits, _ = self.text_experts_gate(
+                hidden_states.to(dtype=torch.float32))
 
             final_hidden_states = self.text_experts(
                 hidden_states=hidden_states, router_logits=text_router_logits)