Fix transformers rtn layer-wise quant (#2008)

Signed-off-by: Kaihui-intel <kaihui.tang@intel.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: Kaihui-intel

examples/3.x_api/pytorch/nlp/huggingface_models/language-modeling/quantization/transformers/weight_only/text-generation/README.md

@@ -116,13 +116,18 @@ Pytorch and Intel-extension-for-pytorch version for intel GPU > 2.1 are required
 ```bash
 pip install -r requirements_GPU.txt
 pip install transformers==4.38.1 # llama use 4.38.1
-source /opt/intel/oneapi/setvars.sh
 git clone https://github.com/intel/intel-extension-for-pytorch.git ipex-gpu
 cd ipex-gpu
 git submodule update --init --recursive
 export USE_AOT_DEVLIST='pvc,ats-m150'
 export BUILD_WITH_CPU=OFF
 
+export LD_LIBRARY_PATH=${CONDA_PREFIX}/lib/:$LD_LIBRARY_PATH
+export OCL_ICD_VENDORS=/etc/OpenCL/vendors
+export CCL_ROOT=${CONDA_PREFIX}
+source /opt/intel/oneapi/setvars.sh --force
+export LLM_ACC_TEST=1
+
 python setup.py install
 ```
 

examples/3.x_api/pytorch/nlp/huggingface_models/language-modeling/quantization/transformers/weight_only/text-generation/run_generation_gpu_woq.py

@@ -200,7 +200,7 @@
     tokenizer.save_pretrained(args.output_dir)
 
 enable_optimize_transformers = False
-opt_gpu_model_type_list = ["llama", "gptj", "mistral", "qwen"]
+opt_gpu_model_type_list = ["llama", "gptj", "mistral", "qwen", "phi3"]
 
 if config.model_type in opt_gpu_model_type_list:
     enable_optimize_transformers = True

neural_compressor/torch/algorithms/weight_only/rtn.py

@@ -130,17 +130,16 @@ def convert(
 
         if use_layer_wise:
             from neural_compressor.common.utils import DEFAULT_WORKSPACE
-            from neural_compressor.torch.algorithms.layer_wise.utils import get_path, load_module, register_weight_hooks
+            from neural_compressor.torch.algorithms.layer_wise.utils import get_path, load_module
 
             if model_path == "":
                 model_path = model.path
             assert model_path, "model_path should not be None."
             model_path = get_path(model_path)
 
-            register_weight_hooks(model, model_path, device=device, clean_weight=True)
-
         for name, m in model.named_modules():
-
+            if use_layer_wise and len(list(m.named_children())) == 0:
+                load_module(model, name, model_path, device=device)
             if not isinstance(m, supported_layers):
                 continue
             if name in weight_config:  # pragma: no cover
@@ -192,9 +191,6 @@ def convert(
             logger.debug(f"RTN quantized module:{name, m}")
             logger.debug(log_msg)
 
-            if use_layer_wise:
-                load_module(model, name, model_path, device=device)
-
             # for only group_dim is 0 or only `transformers.Conv1D`, we need transpose weight.
             if is_transformers_imported():
                 transpose = (group_dim == 0) ^ (isinstance(m, transformers.Conv1D))

neural_compressor/torch/utils/utility.py

@@ -331,11 +331,11 @@ def load_empty_model(pretrained_model_name_or_path, cls=None, **kwargs):
     if cls.__base__ == _BaseAutoModelClass:
         config = AutoConfig.from_pretrained(path, **kwargs)
         with init_empty_weights():
-            model = cls.from_config(config)
+            model = cls.from_config(config, **kwargs)
     else:  # pragma: no cover
         config = cls.config_class.from_pretrained(path, **kwargs)
         with init_empty_weights():
-            model = cls(config)
+            model = cls(config, **kwargs)
     model.tie_weights()
     model.eval()
     model.path = pretrained_model_name_or_path

neural_compressor/transformers/models/modeling_auto.py

@@ -134,7 +134,33 @@ def from_pretrained(cls, pretrained_model_name_or_path, *model_args, **kwargs):
             (RtnConfig, AwqConfig, TeqConfig, GPTQConfig, AutoRoundConfig),
         ):
             logger.info("Applying Weight Only Quantization.")
-            if use_xpu:
+            # set use_layer_wise on client
+            if hasattr(quantization_config, "use_layer_wise"):
+                import neural_compressor.torch.utils as torch_utils
+
+                process_type = torch_utils.get_processor_type_from_user_config()
+                if process_type == torch_utils.ProcessorType.Client:
+                    quantization_config.use_layer_wise = True
+
+            if hasattr(quantization_config, "use_layer_wise") and quantization_config.use_layer_wise:
+                from transformers.dynamic_module_utils import resolve_trust_remote_code
+
+                from neural_compressor.torch import load_empty_model
+
+                trust_remote_code = kwargs.get("trust_remote_code", None)
+                has_remote_code = hasattr(config, "auto_map") and cls.ORIG_MODEL.__name__ in config.auto_map
+                has_local_code = type(config) in cls.ORIG_MODEL._model_mapping.keys()
+                trust_remote_code = resolve_trust_remote_code(
+                    trust_remote_code,
+                    pretrained_model_name_or_path,
+                    has_local_code,
+                    has_remote_code,
+                )
+
+                model = load_empty_model(pretrained_model_name_or_path, trust_remote_code=trust_remote_code)
+                if use_cpu:
+                    quantization_config.post_init_cpu()
+            elif use_xpu:
                 # TODO: if low_cpu_mem_uasge is True, gptj will have accuracy issue on CPU device.
                 kwargs["low_cpu_mem_usage"] = True
                 kwargs["device_map"] = "cpu"

neural_compressor/transformers/quantization/utils.py

@@ -153,7 +153,6 @@ def _replace_linear(
                         "fp16": ipex.quantization.WoqLowpMode.FP16,
                         "int8": ipex.quantization.WoqLowpMode.INT8,
                     }
-
                     ipex_qconfig_mapping = ipex.quantization.get_weight_only_quant_qconfig_mapping(
                         weight_dtype=weight_dtype[quantization_config.bits],
                         lowp_mode=compute_dtype[quantization_config.compute_dtype],
@@ -366,11 +365,6 @@ def convert_to_quantized_model(model, config, device="cpu"):
 
     # mapping to INC config
     dtype = "int4" if config.weight_dtype == "int4_fullrange" else config.weight_dtype
-    import neural_compressor.torch.utils as torch_utils
-
-    process_type = torch_utils.get_processor_type_from_user_config()
-    if process_type == torch_utils.ProcessorType.Client:
-        config.use_layer_wise = True
     if config.quant_method.value == "rtn":
         quant_config = RTNConfig(
             dtype=dtype,
@@ -529,6 +523,12 @@ def convert_to_quantized_model(model, config, device="cpu"):
     if orig_dtype != torch.float32:
         q_model.to(dtype=orig_dtype)
 
+    if config.use_layer_wise and not (q_model.device == device or q_model.device.type == device):
+        logger.warning(
+            "Do not convert device to avoid out of memory. Recommend using saved quantized model to inference."
+        )
+        return q_model
+
     return q_model.to(device)
 
 

test/3x/torch/quantization/weight_only/test_transfomers.py

@@ -115,6 +115,39 @@ def test_save_load(self):
         loaded_output = loaded_model(dummy_input)[0]
         assert torch.equal(woq_output, loaded_output), "loaded output should be same. Please double check."
 
+    def test_use_layer_wise(self):
+        model_name_or_path = self.model_name_or_path
+
+        fp32_model = AutoModelForCausalLM.from_pretrained(model_name_or_path)
+        dummy_input = fp32_model.dummy_inputs["input_ids"]
+
+        # RTN
+        # use_layer_wise=True
+        woq_config = RtnConfig(bits=4, group_size=16, use_layer_wise=True)
+        woq_model = AutoModelForCausalLM.from_pretrained(
+            model_name_or_path,
+            quantization_config=woq_config,
+        )
+        woq_output = woq_model(dummy_input)[0]
+
+        # save
+        output_dir = "./transformers_tmp"
+        woq_model.save_pretrained(output_dir)
+
+        # load
+        loaded_model = AutoModelForCausalLM.from_pretrained(output_dir)
+        loaded_output = loaded_model(dummy_input)[0]
+        assert torch.equal(woq_output, loaded_output), "loaded output should be same. Please double check."
+
+        # use_layer_wise=False
+        woq_config = RtnConfig(bits=4, group_size=16, use_layer_wise=False)
+        woq_model = AutoModelForCausalLM.from_pretrained(
+            model_name_or_path,
+            quantization_config=woq_config,
+        )
+        woq_output2 = woq_model(dummy_input)[0]
+        assert torch.equal(woq_output, woq_output2), "use_layer_wise output should be same. Please double check."
+
     def test_loading_autoawq_model(self):
         user_model = AutoModelForCausalLM.from_pretrained(self.autoawq_model)
         tokenizer = AutoTokenizer.from_pretrained(self.autoawq_model)