[Bugfix] Fix OpenVINO model runner (#12750)

Author: hmellor

vllm/attention/backends/openvino.py

@@ -140,3 +140,7 @@ class OpenVINOAttentionMetadata:
     # `model_executable`.
     multi_modal_placeholder_index_maps: Optional[Dict[
         str, MultiModalPlaceholderMap.IndexMap]]
+
+    # Enable/disable KV scales calculation. This is so that we can disable the
+    # calculation until after prefill and cuda graph capture.
+    enable_kv_scales_calculation: bool

vllm/model_executor/model_loader/openvino.py

@@ -13,7 +13,7 @@
 
 import vllm.envs as envs
 from vllm.attention.backends.openvino import OpenVINOAttentionMetadata
-from vllm.config import DeviceConfig, ModelConfig
+from vllm.config import ModelConfig, VllmConfig, set_current_vllm_config
 from vllm.logger import init_logger
 from vllm.model_executor.layers.logits_processor import (LogitsProcessor,
                                                          _prune_hidden_states)
@@ -103,7 +103,6 @@ def __init__(
         self,
         ov_core: ov.Core,
         model_config: ModelConfig,
-        device_config: DeviceConfig,
         kv_cache_dtype: ov.Type,
     ) -> None:
         super().__init__()
@@ -187,8 +186,7 @@ def sample(
 
 
 def get_model(
-    model_config: ModelConfig,
-    device_config: DeviceConfig,
+    vllm_config: VllmConfig,
     kv_cache_dtype: ov.Type,
     **kwargs,
 ) -> torch.nn.Module:
@@ -201,5 +199,6 @@ def get_model(
             "be added in the future. If this is important to you, "
             "please open an issue on github.")
 
-    return OpenVINOCausalLM(ov_core, model_config, device_config,
-                            kv_cache_dtype)
+    with set_current_vllm_config(vllm_config):
+        return OpenVINOCausalLM(ov_core, vllm_config.model_config,
+                                kv_cache_dtype)

vllm/worker/openvino_model_runner.py

@@ -54,15 +54,13 @@ def __init__(
     ):
         self.ov_core = ov_core
         ModelRunnerBase.__init__(self, vllm_config=vllm_config)
-        cache_config = self.cache_config
-        model_config = self.model_config
         self.is_driver_worker = is_driver_worker
 
         self.device = self.device_config.device
 
         self.kv_cache_dtype = kv_cache_dtype
-        self.sliding_window = model_config.get_sliding_window()
-        self.block_size = cache_config.block_size
+        self.sliding_window = self.model_config.get_sliding_window()
+        self.block_size = self.cache_config.block_size
 
         self.attn_backend = get_attn_backend(
             self.model_config.get_head_size(),
@@ -81,8 +79,7 @@ def __init__(
         self.model: nn.Module  # Set after init_Model
 
     def load_model(self) -> None:
-        self.model = get_model(model_config=self.model_config,
-                               device_config=self.device_config,
+        self.model = get_model(vllm_config=self.vllm_config,
                                kv_cache_dtype=self.kv_cache_dtype,
                                ov_core=self.ov_core)