[Misc] Update to comply with the new `compressed-tensors` config (#5350)

Co-authored-by: Michael Goin <michael@neuralmagic.com>

tests/quantization/test_compressed_tensors.py

@@ -5,15 +5,15 @@ Run `pytest tests/quantization/test_compressed_tensors.py`.
 
 import torch
 
+from vllm import SamplingParams
 from vllm.model_executor.layers.quantization.compressed_tensors.compressed_tensors import (  # noqa: E501
     CompressedTensorsLinearMethod, CompressedTensorsW8A8DynamicToken,
     CompressedTensorsW8A8StaticTensor)
 
 
 def test_compressed_tensors_w8a8_static_setup(vllm_runner):
-    model_path = "nm-testing/tinyllama-one-shot-static-quant-test-compressed"
-    with vllm_runner(model_path, quantization="sparseml",
-                     enforce_eager=True) as llm:
+    model_path = "nm-testing/tinyllama-oneshot-w8a8-static-v2"
+    with vllm_runner(model_path, enforce_eager=True) as llm:
         model = llm.model.llm_engine.model_executor.driver_worker.model_runner.model  # noqa: E501
         layer = model.model.layers[0]
 
@@ -40,11 +40,17 @@ def test_compressed_tensors_w8a8_static_setup(vllm_runner):
         assert qkv_proj.input_scale.dtype is torch.float32
 
 
+def test_compressed_tensors_no_enforce_eager(vllm_runner):
+    model_path = "nm-testing/tinyllama-oneshot-w8a8-static-v2"
+    with vllm_runner(model_path) as llm:
+        sampling_params = SamplingParams()
+        output = llm.generate("Hello world!", sampling_params=sampling_params)
+        assert output
+
+
 def test_compressed_tensors_w8a8_dynanmic_per_token(vllm_runner):
-    model_path = "nm-testing/tinyllama-one-shot-dynamic-test"
-    with vllm_runner(model_path,
-                     quantization="sparseml",
-                     enforce_eager=True,
+    model_path = "nm-testing/tinyllama-oneshot-w8a8-dynamic-token-v2"
+    with vllm_runner(model_path, enforce_eager=True,
                      dtype=torch.float16) as llm:
         model = llm.model.llm_engine.model_executor.driver_worker.model_runner.model  # noqa: E501
         layer = model.model.layers[0]

vllm/config.py

@@ -164,12 +164,8 @@ class ModelConfig:
     def _parse_quant_hf_config(self):
         quant_cfg = getattr(self.hf_config, "quantization_config", None)
         if quant_cfg is None:
-            # SparseML uses a "compression_config" with a "quantization_config".
-            compression_cfg = getattr(self.hf_config, "compression_config",
-                                      None)
-            if compression_cfg is not None:
-                quant_cfg = compression_cfg.get("quantization_config", None)
-
+            # compress-tensors uses a "compression_config" key
+            quant_cfg = getattr(self.hf_config, "compression_config", None)
         return quant_cfg
 
     def _verify_quantization(self) -> None:

vllm/model_executor/layers/quantization/__init__.py

@@ -31,7 +31,7 @@ QUANTIZATION_METHODS: Dict[str, Type[QuantizationConfig]] = {
     "gptq_marlin": GPTQMarlinConfig,
     "gptq": GPTQConfig,
     "squeezellm": SqueezeLLMConfig,
-    "sparseml": CompressedTensorsConfig,
+    "compressed-tensors": CompressedTensorsConfig,
     "bitsandbytes": BitsAndBytesConfig,
 }
 

vllm/model_executor/model_loader/weight_utils.py

@@ -122,12 +122,9 @@ def get_quant_config(model_config: ModelConfig,
     hf_quant_config = getattr(model_config.hf_config, "quantization_config",
                               None)
     if hf_quant_config is None:
-        compression_config = getattr(model_config.hf_config,
-                                     "compression_config", None)
-        if compression_config is not None:
-            hf_quant_config = compression_config.get("quantization_config",
-                                                     None)
-
+        # compressed-tensors uses a compressions_config
+        hf_quant_config = getattr(model_config.hf_config, "compression_config",
+                                  None)
     if hf_quant_config is not None:
         return quant_cls.from_config(hf_quant_config)
     # In case of bitsandbytes/QLoRA, get quant config from the adapter model.