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+ ---
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+ language:
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+ - en
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+ pipeline_tag: text-generation
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+ ---
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+
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+ # Meta-Llama-3-8B-Instruct-quantized.w4a16
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+
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+ ## Model Overview
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+ - **Model Architecture:** Meta-Llama-3
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+ - **Input:** Text
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+ - **Output:** Text
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+ - **Model Optimizations:**
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+ - **Weight quantization:** INT4
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+ - **Intended Use Cases:** Intended for commercial and research use in English. Similarly to [Meta-Llama-3-8B-Instruct](https://huggingface.co/meta-llama/Meta-Llama-3-8B-Instruct), this models is intended for assistant-like chat.
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+ - **Out-of-scope:** Use in any manner that violates applicable laws or regulations (including trade compliance laws). Use in languages other than English.
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+ - **Release Date:** 7/11/2024
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+ - **Version:** 1.0
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+ - **Model Developers:** Neural Magic
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+
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+ Quantized version of [Meta-Llama-3-8B-Instruct](https://huggingface.co/meta-llama/Meta-Llama-3-8B-Instruct).
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+ It achieves an average score of 67.23 on the [OpenLLM](https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard) benchmark (version 1), whereas the unquantized model achieves 67.53.
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+
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+ ### Model Optimizations
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+
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+ This model was obtained by quantizing the weights of [Meta-Llama-3-8B-Instruct](https://huggingface.co/meta-llama/Meta-Llama-3-8B-Instruct) to INT4 data type.
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+ This optimization reduces the number of bits per parameter from 16 to 4, reducing the disk size and GPU memory requirements by approximately 25%.
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+
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+ Only the weights of the linear operators within transformers blocks are quantized. Symmetric group-wise quantization is applied, in which a linear scaling per group maps the INT4 and floating point representations of the quantized weights.
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+ [AutoGPTQ](https://github.com/AutoGPTQ/AutoGPTQ) is used for quantization with 1% damping factor, group-size as 128 and 512 sequences sampled from [Open-Platypus](https://huggingface.co/datasets/garage-bAInd/Open-Platypus).
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+
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+
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+ ## Deployment
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+
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+ ### Use with vLLM
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+
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+ This model can be deployed efficiently using the [vLLM](https://docs.vllm.ai/en/latest/) backend, as shown in the example below.
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+
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+ ```python
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+ from vllm import LLM, SamplingParams
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+ from transformers import AutoTokenizer
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+
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+ model_id = "neuralmagic/Meta-Llama-3-8B-Instruct-quantized.w4a16"
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+
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+ sampling_params = SamplingParams(temperature=0.6, top_p=0.9, max_tokens=256)
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+
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+ tokenizer = AutoTokenizer.from_pretrained(model_id)
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+
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+ messages = [
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+ {"role": "system", "content": "You are a pirate chatbot who always responds in pirate speak!"},
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+ {"role": "user", "content": "Who are you?"},
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+ ]
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+
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+ prompts = tokenizer.apply_chat_template(messages, tokenize=False)
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+
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+ llm = LLM(model=model_id)
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+
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+ outputs = llm.generate(prompts, sampling_params)
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+
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+ generated_text = outputs[0].outputs[0].text
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+ print(generated_text)
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+ ```
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+
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+ vLLM aslo supports OpenAI-compatible serving. See the [documentation](https://docs.vllm.ai/en/latest/) for more details.
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+
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+ ### Use with transformers
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+
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+ This model is supported by Transformers leveraging the integration with the [AutoGPTQ](https://github.com/AutoGPTQ/AutoGPTQ) data format.
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+ The following example contemplates how the model can be used using the `generate()` function.
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+
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+ ```python
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+ from transformers import AutoTokenizer, AutoModelForCausalLM
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+
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+ model_id = "neuralmagic/Meta-Llama-3-8B-Instruct-quantized.w4a16"
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+
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+ tokenizer = AutoTokenizer.from_pretrained(model_id)
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+ model = AutoModelForCausalLM.from_pretrained(
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+ model_id,
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+ torch_dtype="auto",
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+ device_map="auto",
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+ )
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+
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+ messages = [
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+ {"role": "system", "content": "You are a pirate chatbot who always responds in pirate speak!"},
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+ {"role": "user", "content": "Who are you?"},
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+ ]
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+
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+ input_ids = tokenizer.apply_chat_template(
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+ messages,
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+ add_generation_prompt=True,
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+ return_tensors="pt"
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+ ).to(model.device)
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+
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+ terminators = [
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+ tokenizer.eos_token_id,
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+ tokenizer.convert_tokens_to_ids("<|eot_id|>")
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+ ]
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+
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+ outputs = model.generate(
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+ input_ids,
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+ max_new_tokens=256,
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+ eos_token_id=terminators,
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+ do_sample=True,
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+ temperature=0.6,
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+ top_p=0.9,
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+ )
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+ response = outputs[0][input_ids.shape[-1]:]
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+ print(tokenizer.decode(response, skip_special_tokens=True))
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+ ```
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+
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+ ## Creation
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+
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+ This model was created by applying the [AutoGPTQ](https://github.com/AutoGPTQ/AutoGPTQ) library as presented in the code snipet below.
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+ Although AutoGPTQ was used for this particular model, Neural Magic is transitioning to using [llm-compressor](https://github.com/vllm-project/llm-compressor) which supports several quantization schemes and models not supported by AutoGPTQ.
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+
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+ ```python
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+ from transformers import AutoTokenizer
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+ from auto_gptq import AutoGPTQForCausalLM, BaseQuantizeConfig
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+ import random
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+
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+ model_id = "meta-llama/Meta-Llama-3-8B-Instruct"
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+
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+ num_samples = 512
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+
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+ tokenizer = AutoTokenizer.from_pretrained(model_id)
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+
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+ preprocess_fn = lambda example: {"text": "Below is an instruction that describes a task. Write a response that appropriately completes the request.\n\n### Instruction:\n{instruction}\n\n### Response:\n{output}".format_map(example)
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+
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+ dataset_name = "garage-bAInd/Open-Platypus"
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+ dataset = load_dataset(dataset_name, split="train")
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+ ds = dataset.shuffle().select(range(num_samples))
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+ ds = ds.map(preprocess_fn)
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+
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+ return [
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+ tokenizer(
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+ example["text"], padding=False, max_length=max_seq_len, truncation=True,
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+ ) for example in ds
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+ ]
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+
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+ quantize_config = BaseQuantizeConfig(
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+ bits=4,
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+ group_size=128,
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+ desc_act=True,
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+ model_file_base_name="model",
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+ damp_percent=0.1,
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+ )
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+
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+ model = AutoGPTQForCausalLM.from_pretrained(
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+ model_id,
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+ quantize_config,
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+ device_map="auto",
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+ )
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+
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+ model.quantize(examples)
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+ model.save_pretrained("Meta-Llama-3-8B-Instruct-quantized.w4a16")
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+ ```
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+
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+
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+
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+ ## Evaluation
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+
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+ The model was evaluated on the [OpenLLM](https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard) leaderboard tasks (version 1) with the [lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness/tree/383bbd54bc621086e05aa1b030d8d4d5635b25e6) (commit 383bbd54bc621086e05aa1b030d8d4d5635b25e6) and the [vLLM](https://docs.vllm.ai/en/stable/) engine, using the following command:
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+ ```
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+ lm_eval \
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+ --model vllm \
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+ --model_args pretrained="neuralmagic/Meta-Llama-3-8B-Instruct-quantized.w4a16",dtype=auto,tensor_parallel_size=2,gpu_memory_utilization=0.4,add_bos_token=True,max_model_len=4096 \
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+ --tasks openllm \
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+ --batch_size auto
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+ ```
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+
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+ ### Accuracy
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+
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+ #### Open LLM Leaderboard evaluation scores
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+ <table>
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+ <tr>
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+ <td><strong>Benchmark</strong>
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+ </td>
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+ <td><strong>Meta-Llama-3-8B-Instruct </strong>
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+ </td>
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+ <td><strong>Meta-Llama-3-8B-Instruct-quantized.w4a16(this model)</strong>
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+ </td>
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+ <td><strong>Recovery</strong>
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+ </td>
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+ </tr>
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+ <tr>
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+ <td>MMLU (5-shot)
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+ </td>
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+ <td>66.53
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+ </td>
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+ <td>65.44
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+ </td>
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+ <td>98.36%
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+ </td>
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+ </tr>
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+ <tr>
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+ <td>ARC Challenge (25-shot)
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+ </td>
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+ <td>62.62
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+ </td>
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+ <td>60.66
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+ </td>
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+ <td>96.87%
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+ </td>
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+ </tr>
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+ <tr>
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+ <td>GSM-8K (5-shot, strict-match)
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+ </td>
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+ <td>75.21
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+ </td>
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+ <td>72.25
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+ </td>
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+ <td>96.07%
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+ </td>
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+ </tr>
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+ <tr>
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+ <td>Hellaswag (10-shot)
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+ </td>
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+ <td>78.81
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+ </td>
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+ <td>77.7
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+ </td>
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+ <td>98.60%
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+ </td>
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+ </tr>
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+ <tr>
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+ <td>Winogrande (5-shot)
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+ </td>
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+ <td>76.47
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+ </td>
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+ <td>75.53
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+ </td>
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+ <td>98.77%
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+ </td>
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+ </tr>
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+ <tr>
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+ <td>TruthfulQA (0-shot)
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+ </td>
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+ <td>45.58
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+ </td>
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+ <td>51.84
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+ </td>
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+ <td>113.73%
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+ </td>
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+ </tr>
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+ <tr>
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+ <td><strong>Average</strong>
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+ </td>
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+ <td><strong>67.53</strong>
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+ </td>
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+ <td><strong>67.23</strong>
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+ </td>
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+ <td><strong>99.56%</strong>
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+ </td>
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+ </tr>
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+ </table>