llm: update all ARC int4 examples (#8809)

* update GPU examples

* update other examples

* fix

* update based on comment

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

@@ -15,12 +15,12 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 
 from bigdl.llm.transformers import AutoModelForCausalLM
 from transformers import AutoTokenizer
-import intel_extension_for_pytorch as ipex
 
 # you could tune the prompt based on your own model,
 BAICHUAN_PROMPT_FORMAT = "<human>{prompt} <bot>"
@@ -44,7 +44,7 @@ if __name__ == '__main__':
                                                  load_in_4bit=True,
                                                  optimize_model=False,
                                                  trust_remote_code=True)
-    model = model.half().to('xpu')
+    model = model.to('xpu')
 
     # Load tokenizer
     tokenizer = AutoTokenizer.from_pretrained(model_path,
@@ -54,16 +54,17 @@ if __name__ == '__main__':
     with torch.inference_mode():
         prompt = BAICHUAN_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
-        # if your selected model has `"do_sample": true` in its generation config,
-        # it is important to set `do_sample=False` explicitly in the `generate` function
-        # to obtain optimal performance with BigDL-LLM INT4 optimizations
         output = model.generate(input_ids,
-                                do_sample=False,
                                 max_new_tokens=args.n_predict)
         torch.xpu.synchronize()
         end = time.time()

python/llm/example/transformers/transformers_int4/GPU/chatglm2/README.md

@@ -65,3 +65,44 @@ Inference time: xxxx s
 
 答： Artificial Intelligence (AI) refers to the ability of a computer or machine to perform tasks that typically require human-like intelligence, such as understanding language, recognizing patterns
 ```
+
+## Example 2: Stream Chat using `stream_chat()` API
+In the example [streamchat.py](./streamchat.py), we show a basic use case for a ChatGLM2 model to stream chat, with BigDL-LLM INT4 optimizations.
+### 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
+```
+
+**Stream Chat using `stream_chat()` API**:
+```
+python ./streamchat.py --repo-id-or-model-path REPO_ID_OR_MODEL_PATH --question QUESTION
+```
+
+**Chat using `chat()` API**:
+```
+python ./streamchat.py --repo-id-or-model-path REPO_ID_OR_MODEL_PATH --question QUESTION --disable-stream
+```
+
+Arguments info:
+- `--repo-id-or-model-path REPO_ID_OR_MODEL_PATH`: argument defining the huggingface repo id for the ChatGLM2 model to be downloaded, or the path to the huggingface checkpoint folder. It is default to be `'THUDM/chatglm2-6b'`.
+- `--question QUESTION`: argument defining the question to ask. It is default to be `"晚上睡不着应该怎么办"`.
+- `--disable-stream`: argument defining whether to stream chat. If include `--disable-stream` when running the script, the stream chat is disabled and `chat()` API is used.

python/llm/example/transformers/transformers_int4/GPU/chatglm2/generate.py

@@ -15,13 +15,13 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 import numpy as np
 
 from bigdl.llm.transformers import AutoModel
 from transformers import AutoTokenizer
-import intel_extension_for_pytorch as ipex
 
 # you could tune the prompt based on your own model,
 # here the prompt tuning refers to https://huggingface.co/THUDM/chatglm2-6b/blob/main/modeling_chatglm.py#L1007
@@ -56,6 +56,11 @@ if __name__ == '__main__':
     with torch.inference_mode():
         prompt = CHATGLM_V2_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,

python/llm/example/transformers/transformers_int4/GPU/chatglm2/streamchat.py

@@ -0,0 +1,72 @@
+#
+# 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
+import numpy as np
+
+from bigdl.llm.transformers import AutoModel
+from transformers import AutoTokenizer
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Stream Chat for ChatGLM2 model')
+    parser.add_argument('--repo-id-or-model-path', type=str, default="/mnt/disk1/models/chatglm2-6b",
+                        help='The huggingface repo id for the ChatGLM2 model to be downloaded'
+                             ', or the path to the huggingface checkpoint folder')
+    parser.add_argument('--question', type=str, default="晚上睡不着应该怎么办",
+                        help='Qustion you want to ask')
+    parser.add_argument('--disable-stream', action="store_true",
+                        help='Disable stream chat')
+
+    args = parser.parse_args()
+    model_path = args.repo_id_or_model_path
+    disable_stream = args.disable_stream
+
+    # Load model in 4 bit,
+    # which convert the relevant layers in the model into INT4 format
+    model = AutoModel.from_pretrained(model_path,
+                                      load_in_4bit=True,
+                                      trust_remote_code=True,
+                                      optimize_model=False)
+    model.to('xpu')
+
+    # Load tokenizer
+    tokenizer = AutoTokenizer.from_pretrained(model_path,
+                                              trust_remote_code=True)
+
+    with torch.inference_mode():
+        prompt = args.question
+        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=32)
+
+        # start inference
+        if disable_stream:
+            # Chat
+            response, history = model.chat(tokenizer, args.question, history=[])
+            print('-'*20, 'Chat Output', '-'*20)
+            print(response)
+        else:
+            # Stream chat
+            response_ = ""
+            print('-'*20, 'Stream Chat Output', '-'*20)
+            for response, history in model.stream_chat(tokenizer, args.question, history=[]):
+                print(response.replace(response_, ""), end="")
+                response_ = response

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

@@ -15,12 +15,12 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 
 from bigdl.llm.transformers import AutoModelForCausalLM
 from transformers import AutoTokenizer
-import intel_extension_for_pytorch as ipex
 
 # you could tune the prompt based on your own model,
 FALCON_PROMPT_FORMAT = "<human> {prompt} <bot>"
@@ -46,7 +46,7 @@ if __name__ == '__main__':
                                                  load_in_4bit=True,
                                                  optimize_model=False,
                                                  trust_remote_code=True)
-    model = model.half().to('xpu')
+    model = model.to('xpu')
 
     # Load tokenizer
     tokenizer = AutoTokenizer.from_pretrained(model_path,
@@ -56,6 +56,12 @@ if __name__ == '__main__':
     with torch.inference_mode():
         prompt = FALCON_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,

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

@@ -15,12 +15,12 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 
 from bigdl.llm.transformers import AutoModelForCausalLM
 from transformers import AutoTokenizer
-import intel_extension_for_pytorch as ipex
 
 # you could tune the prompt based on your own model,
 # here the prompt tuning refers to https://huggingface.co/internlm/internlm-chat-7b-8k/blob/main/modeling_internlm.py#L768
@@ -45,7 +45,7 @@ if __name__ == '__main__':
                                                  load_in_4bit=True,
                                                  optimize_model=False,
                                                  trust_remote_code=True)
-    model = model.half().to('xpu')
+    model = model.to('xpu')
 
     # Load tokenizer
     tokenizer = AutoTokenizer.from_pretrained(model_path,
@@ -55,6 +55,11 @@ if __name__ == '__main__':
     with torch.inference_mode():
         prompt = INTERNLM_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,

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

@@ -15,12 +15,12 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 
 from bigdl.llm.transformers import AutoModelForCausalLM
 from transformers import LlamaTokenizer
-import intel_extension_for_pytorch as ipex
 
 # 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
@@ -58,6 +58,11 @@ if __name__ == '__main__':
     with torch.inference_mode():
         prompt = LLAMA2_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,

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

@@ -15,12 +15,12 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 
 from bigdl.llm.transformers import AutoModelForCausalLM
 from transformers import AutoTokenizer, GenerationConfig
-import intel_extension_for_pytorch as ipex
 
 # you could tune the prompt based on your own model,
 # here the prompt tuning refers to https://huggingface.co/spaces/mosaicml/mpt-30b-chat/blob/main/app.py
@@ -46,7 +46,7 @@ if __name__ == '__main__':
                                                  load_in_4bit=True,
                                                  optimize_model=False,
                                                  trust_remote_code=True)
-    model = model.half().to('xpu')
+    model = model.to('xpu')
 
     # Load tokenizer
     tokenizer = AutoTokenizer.from_pretrained(model_path,
@@ -56,6 +56,11 @@ if __name__ == '__main__':
     with torch.inference_mode():
         prompt = MPT_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
         # enabling `use_cache=True` allows the model to utilize the previous
         # key/values attentions to speed up decoding;
         # to obtain optimal performance with BigDL-LLM INT4 optimizations,

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

@@ -15,12 +15,12 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 
 from bigdl.llm.transformers import AutoModelForCausalLM
 from transformers import AutoTokenizer
-import intel_extension_for_pytorch as ipex
 
 # you could tune the prompt based on your own model
 QWEN_PROMPT_FORMAT = "<human>{prompt} <bot>"
@@ -44,7 +44,7 @@ if __name__ == '__main__':
                                                  load_in_4bit=True,
                                                  optimize_model=False,
                                                  trust_remote_code=True)
-    model = model.half().to('xpu')
+    model = model.to('xpu')
 
     # Load tokenizer
     tokenizer = AutoTokenizer.from_pretrained(model_path,
@@ -54,16 +54,17 @@ if __name__ == '__main__':
     with torch.inference_mode():
         prompt = QWEN_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
-        # if your selected model has `"do_sample": true` in its generation config,
-        # it is important to set `do_sample=False` explicitly in the `generate` function
-        # to obtain optimal performance with BigDL-LLM INT4 optimizations
         output = model.generate(input_ids,
-                                do_sample=False,
                                 max_new_tokens=args.n_predict)
         torch.xpu.synchronize()
         end = time.time()

python/llm/example/transformers/transformers_int4/GPU/whisper/recognize.py

@@ -15,13 +15,14 @@
 #
 
 import torch
+import intel_extension_for_pytorch as ipex
 import time
 import argparse
 
 from bigdl.llm.transformers import AutoModelForSpeechSeq2Seq
 from transformers import WhisperProcessor
 from datasets import load_dataset
-import intel_extension_for_pytorch as ipex
+
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='Recognize Tokens using `generate()` API for Whisper model')
@@ -45,7 +46,7 @@ if __name__ == '__main__':
     model = AutoModelForSpeechSeq2Seq.from_pretrained(model_path,
                                                       load_in_4bit=True,
                                                       optimize_model=False)
-    model.half().to('xpu')
+    model.to('xpu')
     model.config.forced_decoder_ids = None
 
     # Load processor
@@ -61,7 +62,7 @@ if __name__ == '__main__':
 
         input_features = processor(sample["array"],
                                    sampling_rate=sample["sampling_rate"],
-                                   return_tensors="pt").input_features.half().to('xpu')
+                                   return_tensors="pt").input_features.to('xpu')
         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,