[LLM]Arc starcoder example (#8814)

* arc starcoder example init

* add log

* meet comments

python/llm/example/transformers/transformers_int4/GPU/llama2/README.md

@@ -43,34 +43,32 @@ Arguments info:
 ```log
 Inference time: xxxx s
 -------------------- Prompt --------------------
-### HUMAN:
+<s>[INST] <<SYS>>
-What is AI?
 
-### RESPONSE:
+<</SYS>>
 
+What is AI? [/INST]
 -------------------- Output --------------------
-### HUMAN:
+[INST] <<SYS>>
-What is AI?
 
-### RESPONSE:
+<</SYS>>
 
-AI is a term used to describe the development of computer systems that can perform tasks that typically require human intelligence, such as understanding natural language, recognizing images
+What is AI? [/INST]  Artificial intelligence (AI) is the broader field of research and development aimed at creating machines that can perform tasks that typically require human intelligence,
 ```
 
 #### [meta-llama/Llama-2-13b-chat-hf](https://huggingface.co/meta-llama/Llama-2-13b-chat-hf)
 ```log
 Inference time: xxxx s
 -------------------- Prompt --------------------
-### HUMAN:
+<s>[INST] <<SYS>>
-What is AI?
 
-### RESPONSE:
+<</SYS>>
 
+What is AI? [/INST]
 -------------------- Output --------------------
-### HUMAN:
+[INST] <<SYS>>
-What is AI?
 
-### RESPONSE:
+<</SYS>>
 
-AI, or artificial intelligence, refers to the ability of machines to perform tasks that would typically require human intelligence, such as learning, problem-solving,
+What is AI? [/INST]  AI stands for Artificial Intelligence, which refers to the ability of machines or computers to perform tasks that would typically require human intelligence, such as
 ```

python/llm/example/transformers/transformers_int4/GPU/llama2/generate.py

@@ -24,12 +24,22 @@ from transformers import LlamaTokenizer
 
 # you could tune the prompt based on your own model,
 # here the prompt tuning refers to https://huggingface.co/georgesung/llama2_7b_chat_uncensored#prompt-style
-LLAMA2_PROMPT_FORMAT = """### HUMAN:
+DEFAULT_SYSTEM_PROMPT = """\
-{prompt}
-
-### RESPONSE:
 """
 
+def get_prompt(message: str, chat_history: list[tuple[str, str]],
+               system_prompt: str) -> str:
+    texts = [f'<s>[INST] <<SYS>>\n{system_prompt}\n<</SYS>>\n\n']
+    # The first user input is _not_ stripped
+    do_strip = False
+    for user_input, response in chat_history:
+        user_input = user_input.strip() if do_strip else user_input
+        do_strip = True
+        texts.append(f'{user_input} [/INST] {response.strip()} </s><s>[INST] ')
+    message = message.strip() if do_strip else message
+    texts.append(f'{message} [/INST]')
+    return ''.join(texts)
+
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='Predict Tokens using `generate()` API for Llama2 model')
     parser.add_argument('--repo-id-or-model-path', type=str, default="meta-llama/Llama-2-7b-chat-hf",
@@ -56,7 +66,7 @@ if __name__ == '__main__':
 
     # Generate predicted tokens
     with torch.inference_mode():
-        prompt = LLAMA2_PROMPT_FORMAT.format(prompt=args.prompt)
+        prompt = get_prompt(args.prompt, [], system_prompt=DEFAULT_SYSTEM_PROMPT)
         input_ids = tokenizer.encode(prompt, return_tensors="pt").to('xpu')
         # ipex model needs a warmup, then inference time can be accurate
         output = model.generate(input_ids,

python/llm/example/transformers/transformers_int4/GPU/starcoder/generate.py

@@ -0,0 +1,77 @@
+#
+# Copyright 2016 The BigDL Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import torch
+import intel_extension_for_pytorch as ipex
+import time
+import argparse
+
+from bigdl.llm.transformers import AutoModelForCausalLM
+from transformers import AutoTokenizer
+
+# you could tune the prompt based on your own model,
+StarCoder_PROMPT_FORMAT = "{prompt}"
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Predict Tokens using `generate()` API for StarCoder model')
+    parser.add_argument('--repo-id-or-model-path', type=str, default="bigcode/starcoder",
+                        help='The huggingface repo id for the StarCoder to be downloaded'
+                             ', or the path to the huggingface checkpoint folder')
+    parser.add_argument('--prompt', type=str, default="def print_hello_world():",
+                        help='Prompt to infer')
+    parser.add_argument('--n-predict', type=int, default=32,
+                        help='Max tokens to predict')
+
+    args = parser.parse_args()
+    model_path = args.repo_id_or_model_path
+
+    # Load model in 4 bit,
+    # which convert the relevant layers in the model into INT4 format
+    model = AutoModelForCausalLM.from_pretrained(model_path,
+                                                 load_in_4bit=True,
+                                                 optimize_model=False,
+                                                 trust_remote_code=True)
+    model = model.to('xpu')
+
+    # Load tokenizer
+    tokenizer = AutoTokenizer.from_pretrained(model_path,
+                                              trust_remote_code=True)
+    
+    # Generate predicted tokens
+    with torch.inference_mode():
+        prompt = StarCoder_PROMPT_FORMAT.format(prompt=args.prompt)
+        input_ids = tokenizer.encode(prompt, return_tensors="pt").to('xpu')
+
+        # ipex model needs a warmup, then inference time can be accurate
+        output = model.generate(input_ids,
+                                max_new_tokens=args.n_predict)
+
+        # start inference
+        st = time.time()
+        # if your selected model is capable of utilizing previous key/value attentions
+        # to enhance decoding speed, but has `"use_cache": false` in its model config,
+        # it is important to set `use_cache=True` explicitly in the `generate` function
+        # to obtain optimal performance with BigDL-LLM INT4 optimizations
+        output = model.generate(input_ids,
+                                max_new_tokens=args.n_predict)
+        torch.xpu.synchronize()
+        end = time.time()
+        output_str = tokenizer.decode(output[0], skip_special_tokens=True)
+        print(f'Inference time: {end-st} s')
+        print('-'*20, 'Prompt', '-'*20)
+        print(prompt)
+        print('-'*20, 'Output', '-'*20)
+        print(output_str)

python/llm/example/transformers/transformers_int4/GPU/starcoder/readme.md

@@ -0,0 +1,63 @@
+# StarCoder
+In this directory, you will find examples on how you could apply BigDL-LLM INT4 optimizations on StarCoder models on any Intel® Arc™ A-Series Graphics. For illustration purposes, we utilize the [bigcode/starcoder](https://huggingface.co/bigcode/starcoder) as a reference StarCoder model.
+
+## 0. Requirements
+To run these examples with BigDL-LLM on Intel® Arc™ A-Series Graphics, we have some recommended requirements for your machine, please refer to [here](../README.md#recommended-requirements) for more information.
+
+## Example: Predict Tokens using `generate()` API
+In the example [generate.py](./generate.py), we show a basic use case for an StarCoder model to predict the next N tokens using `generate()` API, with BigDL-LLM INT4 optimizations on Intel® Arc™ A-Series Graphics.
+### 1. Install
+We suggest using conda to manage environment:
+```bash
+conda create -n llm python=3.9
+conda activate llm
+# below command will install intel_extension_for_pytorch==2.0.110+xpu as default
+# you can install specific ipex/torch version for your need
+pip install --pre --upgrade bigdl-llm[xpu] -f https://developer.intel.com/ipex-whl-stable-xpu
+```
+
+### 2. Configures OneAPI environment variables
+```bash
+source /opt/intel/oneapi/setvars.sh
+```
+
+### 3. Run
+
+For optimal performance on Arc, it is recommended to set several environment variables.
+
+```bash
+export USE_XETLA=OFF
+export SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=1
+```
+
+```
+python ./generate.py --repo-id-or-model-path REPO_ID_OR_MODEL_PATH --prompt PROMPT --n-predict N_PREDICT
+```
+
+Arguments info:
+- `--repo-id-or-model-path REPO_ID_OR_MODEL_PATH`: argument defining the huggingface repo id for the StarCoder model to be downloaded, or the path to the huggingface checkpoint folder. It is default to be `'bigcode/starcoder'`.
+- `--prompt PROMPT`: argument defining the prompt to be infered (with integrated prompt format for chat). It is default to be `'def print_hello_world():'`.
+- `--n-predict N_PREDICT`: argument defining the max number of tokens to predict. It is default to be `32`.
+
+#### Sample Output
+#### [bigcode/starcoder](https://huggingface.co/bigcode/starcoder)
+```log
+Loading checkpoint shards: 100%|█████████████████████████████████████████████████████████████████████████████████████████████████| 7/7 [02:07<00:00, 18.23s/it]
+The attention mask and the pad token id were not set. As a consequence, you may observe unexpected behavior. Please pass your input's `attention_mask` to obtain reliable results.
+Setting `pad_token_id` to `eos_token_id`:0 for open-end generation.
+The attention mask and the pad token id were not set. As a consequence, you may observe unexpected behavior. Please pass your input's `attention_mask` to obtain reliable results.
+Setting `pad_token_id` to `eos_token_id`:0 for open-end generation.
+Inference time: xxxx s
+-------------------- Prompt --------------------
+def print_hello_world():
+-------------------- Output --------------------
+def print_hello_world():
+    print("Hello World!")
+
+
+def print_hello_name(name):
+    print(f"Hello {name}!")
+
+
+def print_
+```