release initial code

Co-authored-by: Ying Sheng <sqy1415@gmail.com>
Co-authored-by: Liangsheng Yin <hnyls2002@gmail.com>
Co-authored-by: Zhiqiang Xie <xiezhq@stanford.edu>
Co-authored-by: parasol-aser <3848358+parasol-aser@users.noreply.github.com>
Co-authored-by: LiviaSun <33578456+ChuyueSun@users.noreply.github.com>
Co-authored-by: Cody Yu <hao.yu.cody@gmail.com>

benchmark/multi_document_qa/README.md

@@ -0,0 +1,47 @@
+## Run benchmark
+
+### Benchmark sglang
+```
+python3 -m sglang.launch_server --model-path codellama/CodeLlama-7b-instruct-hf --port 30000
+```
+
+```
+python3 bench_sglang.py --num-questions 10 --parallel 1
+```
+
+
+### Benchmark vllm
+```
+python3 -m vllm.entrypoints.api_server --tokenizer-mode auto --model codellama/CodeLlama-7b-instruct-hf  --disable-log-requests --port 21000 --gpu 0.97
+```
+
+```
+python3 bench_other.py --backend vllm --num-questions 64
+```
+
+
+### Benchmark guidance
+```
+python3 bench_other.py --backend guidance --num-questions 32 --parallel 1
+```
+
+
+
+### Build dataset
+
+```
+pip install PyPDF2
+python3 build_dataset.py
+```
+
+```python
+import PyPDF2
+
+with open('llama2.pdf', 'rb') as file:
+    reader = PyPDF2.PdfReader(file)
+    text = ''
+    for page_num in range(len(reader.pages)):
+        text += reader.pages[page_num].extract_text()
+    with open('output.txt', 'w') as text_file:
+        text_file.write(text)
+```