Update GGUF readme (#9611)

python/llm/example/CPU/HF-Transformers-AutoModels/Advanced-Quantizations/GGUF/README.md

@@ -3,7 +3,7 @@ In this directory, you will find examples on how to load GGUF model into `bigdl-
 >Note: Only LLaMA2 family models are currently supported
 
 ## Requirements
-To run these examples with BigDL-LLM, we have some recommended requirements for your machine, please refer to [here](../README.md#recommended-requirements) for more information.
+To run these examples with BigDL-LLM, we have some recommended requirements for your machine, please refer to [here](../../../README.md#system-support) for more information.
 
 **Important: Please make sure you have installed `transformers==4.33.0` to run the example.**
 

python/llm/example/CPU/HF-Transformers-AutoModels/Model/README.md

@@ -4,7 +4,7 @@ You can use BigDL-LLM to run any Huggingface Transformer models with INT4 optimi
 ## Recommended Requirements
 To run the examples, we recommend using Intel® Xeon® processors (server), or >= 12th Gen Intel® Core™ processor (client).
 
-For OS, BigDL-LLM supports Ubuntu 20.04 or later, CentOS 7 or later, and Windows 10/11.
+For OS, BigDL-LLM supports Ubuntu 20.04 or later (glibc>=2.17), CentOS 7 or later (glibc>=2.17), and Windows 10/11.
 
 ## Best Known Configuration on Linux
 For better performance, it is recommended to set environment variables on Linux with the help of BigDL-LLM:

python/llm/example/CPU/README.md

@@ -18,6 +18,13 @@ This folder contains examples of running BigDL-LLM on Intel CPU:
 - Intel® Xeon® processors
 
 **Operating System**:
-- Ubuntu 20.04 or later
+- Ubuntu 20.04 or later (glibc>=2.17)
-- CentOS 7 or later
+- CentOS 7 or later (glibc>=2.17)
 - Windows 10/11, with or without WSL
+
+## Best Known Configuration on Linux
+For better performance, it is recommended to set environment variables on Linux with the help of BigDL-LLM:
+```bash
+pip install bigdl-llm
+source bigdl-llm-init
+```

python/llm/example/GPU/HF-Transformers-AutoModels/Advanced-Quantizations/GGUF/README.md

@@ -3,7 +3,7 @@ In this directory, you will find examples on how to load GGUF model into `bigdl-
 >Note: Only LLaMA2 family models are currently supported
 
 ## Requirements
-To run these examples with BigDL-LLM, we have some recommended requirements for your machine, please refer to [here](../README.md#recommended-requirements) for more information.
+To run these examples with BigDL-LLM, we have some recommended requirements for your machine, please refer to [here](../../../README.md#system-support) for more information.
 
 **Important: Please make sure you have installed `transformers==4.33.0` to run the example.**
 

python/llm/example/GPU/README.md

@@ -26,3 +26,10 @@ Step 1, please refer to our [driver installation](https://dgpu-docs.intel.com/dr
 
 Step 2, you also need to download and install [Intel® oneAPI Base Toolkit](https://www.intel.com/content/www/us/en/developer/tools/oneapi/base-toolkit-download.html). OneMKL and DPC++ compiler are needed, others are optional.
 > **Note**: IPEX 2.0.110+xpu requires Intel® oneAPI Base Toolkit's version >= 2023.2.0.
+
+## Best Known Configuration on Linux
+For better performance, it is recommended to set environment variables on Linux:
+```bash
+export USE_XETLA=OFF
+export SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=1
+```