--- tags: - fp8 - vllm license: apache-2.0 license_link: https://huggingface.co/datasets/choosealicense/licenses/blob/main/markdown/apache-2.0.md language: - en base_model: ibm-granite/granite-3.1-8b-base library_name: transformers --- # granite-3.1-8b-base-FP8-dynamic ## Model Overview - **Model Architecture:** granite-3.1-8b-base - **Input:** Text - **Output:** Text - **Model Optimizations:** - **Weight quantization:** FP8 - **Activation quantization:** FP8 - **Release Date:** 1/8/2025 - **Version:** 1.0 - **Model Developers:** Neural Magic Quantized version of [ibm-granite/granite-3.1-8b-base](https://huggingface.co/ibm-granite/granite-3.1-8b-base). It achieves an average score of 66.94 on the [OpenLLM](https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard) benchmark (version 1), whereas the unquantized model achieves 67.44. ### Model Optimizations This model was obtained by quantizing the weights and activations of [ibm-granite/granite-3.1-8b-base](https://huggingface.co/ibm-granite/granite-3.1-8b-base) to FP8 data type, ready for inference with vLLM >= 0.5.2. This optimization reduces the number of bits per parameter from 16 to 8, reducing the disk size and GPU memory requirements by approximately 50%. Only the weights and activations of the linear operators within transformers blocks are quantized. ## Deployment ### Use with vLLM This model can be deployed efficiently using the [vLLM](https://docs.vllm.ai/en/latest/) backend, as shown in the example below. ```python from transformers import AutoTokenizer from vllm import LLM, SamplingParams max_model_len, tp_size = 4096, 1 model_name = "neuralmagic/granite-3.1-8b-base-FP8-dynamic" tokenizer = AutoTokenizer.from_pretrained(model_name) llm = LLM(model=model_name, tensor_parallel_size=tp_size, max_model_len=max_model_len, trust_remote_code=True) sampling_params = SamplingParams(temperature=0.3, max_tokens=256, stop_token_ids=[tokenizer.eos_token_id]) messages_list = [ [{"role": "user", "content": "Who are you? Please respond in pirate speak!"}], ] prompt_token_ids = [tokenizer.apply_chat_template(messages, add_generation_prompt=True) for messages in messages_list] outputs = llm.generate(prompt_token_ids=prompt_token_ids, sampling_params=sampling_params) generated_text = [output.outputs[0].text for output in outputs] print(generated_text) ``` vLLM also supports OpenAI-compatible serving. See the [documentation](https://docs.vllm.ai/en/latest/) for more details. ## Creation This model was created with [llm-compressor](https://github.com/vllm-project/llm-compressor) by running the code snippet below.

Model Creation Code

```bash python quantize.py --model_id ibm-granite/granite-3.1-8b-base --save_path "output_dir/" ``` ```python import argparse from transformers import AutoModelForCausalLM, AutoTokenizer from llmcompressor.modifiers.quantization import QuantizationModifier from llmcompressor.transformers import oneshot import os def main(): parser = argparse.ArgumentParser(description='Quantize a transformer model to FP8') parser.add_argument('--model_id', type=str, required=True, help='The model ID from HuggingFace (e.g., "meta-llama/Meta-Llama-3-8B-base")') parser.add_argument('--save_path', type=str, default='.', help='Custom path to save the quantized model. If not provided, will use model_name-FP8-dynamic') args = parser.parse_args() # Load model model = AutoModelForCausalLM.from_pretrained( args.model_id, device_map="auto", torch_dtype="auto", trust_remote_code=True, ) tokenizer = AutoTokenizer.from_pretrained(args.model_id) # Configure the quantization algorithm and scheme recipe = QuantizationModifier( targets="Linear", scheme="FP8_DYNAMIC", ignore=["lm_head"] ) # Apply quantization oneshot(model=model, recipe=recipe) save_path = os.path.join(args.save_path, args.model_id.split("/")[1] + "-FP8-dynamic") os.makedirs(save_path, exist_ok=True) # Save to disk in compressed-tensors format model.save_pretrained(save_path) tokenizer.save_pretrained(save_path) print(f"Model and tokenizer saved to: {save_path}") if __name__ == "__main__": main() ```

## Evaluation The model was evaluated on OpenLLM Leaderboard [V1](https://huggingface.co/spaces/open-llm-leaderboard-old/open_llm_leaderboard), OpenLLM Leaderboard [V2](https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard#/) and on [HumanEval](https://github.com/neuralmagic/evalplus), using the following commands:

Evaluation Commands

OpenLLM Leaderboard V1: ``` lm_eval \ --model vllm \ --model_args pretrained="neuralmagic/granite-3.1-8b-base-FP8-dynamic",dtype=auto,add_bos_token=True,max_model_len=4096,tensor_parallel_size=1,gpu_memory_utilization=0.8,enable_chunked_prefill=True,trust_remote_code=True \ --tasks openllm \ --write_out \ --batch_size auto \ --output_path output_dir \ --show_config ``` #### HumanEval ##### Generation ``` python3 codegen/generate.py \ --model neuralmagic/granite-3.1-8b-base-FP8-dynamic \ --bs 16 \ --temperature 0.2 \ --n_samples 50 \ --root "." \ --dataset humaneval ``` ##### Sanitization ``` python3 evalplus/sanitize.py \ humaneval/neuralmagic--granite-3.1-8b-base-FP8-dynamic_vllm_temp_0.2 ``` ##### Evaluation ``` evalplus.evaluate \ --dataset humaneval \ --samples humaneval/neuralmagic--granite-3.1-8b-base-FP8-dynamic_vllm_temp_0.2-sanitized ```

### Accuracy

Category	Metric	ibm-granite/granite-3.1-8b-base	neuralmagic/granite-3.1-8b-base-FP8-dynamic	Recovery (%)
OpenLLM V1	ARC-Challenge (Acc-Norm, 25-shot)	64.68	64.16	99.20
	GSM8K (Strict-Match, 5-shot)	60.88	58.45	95.99
	HellaSwag (Acc-Norm, 10-shot)	83.52	83.46	99.93
	MMLU (Acc, 5-shot)	63.33	63.35	100.03
	TruthfulQA (MC2, 0-shot)	51.33	51.56	100.45
	Winogrande (Acc, 5-shot)	80.90	80.66	99.70
	Average Score	67.44	66.94	99.26
Coding	HumanEval Pass@1	44.10	44.80	101.59

## Inference Performance This model achieves up to 1.5x speedup in single-stream deployment and up to 1.1x speedup in multi-stream asynchronous deployment on L40 GPUs. The following performance benchmarks were conducted with [vLLM](https://docs.vllm.ai/en/latest/) version 0.6.6.post1, and [GuideLLM](https://github.com/neuralmagic/guidellm).

Benchmarking Command

``` guidellm --model neuralmagic/granite-3.1-8b-base-FP8-dynamic --target "http://localhost:8000/v1" --data-type emulated --data "prompt_tokens=,generated_tokens=" --max seconds 360 --backend aiohttp_server ```

### Single-stream performance (measured with vLLM version 0.6.6.post1)

GPU class	Model	Speedup	Code Completion prefill: 256 tokens decode: 1024 tokens	Docstring Generation prefill: 768 tokens decode: 128 tokens	Code Fixing prefill: 1024 tokens decode: 1024 tokens	RAG prefill: 1024 tokens decode: 128 tokens	Instruction Following prefill: 256 tokens decode: 128 tokens	Multi-turn Chat prefill: 512 tokens decode: 256 tokens	Large Summarization prefill: 4096 tokens decode: 512 tokens
			Latency (s)
L40	granite-3.1-8b-base		25.1	3.2	25.3	3.2	3.2	6.3	13.4
	granite-3.1-8b-base-FP8-dynamic (this model)	1.47	16.8	2.2	17.1	2.2	2.1	4.2	9.3
	granite-3.1-8b-base-quantized.w4a16	2.72	8.9	1.2	9.2	1.2	1.1	2.3	5.3

### Multi-stream asynchronous performance (measured with vLLM version 0.6.6.post1)

GPU class	Model	Speedup	Code Completion prefill: 256 tokens decode: 1024 tokens	Docstring Generation prefill: 768 tokens decode: 128 tokens	Code Fixing prefill: 1024 tokens decode: 1024 tokens	RAG prefill: 1024 tokens decode: 128 tokens	Instruction Following prefill: 256 tokens decode: 128 tokens	Multi-turn Chat prefill: 512 tokens decode: 256 tokens	Large Summarization prefill: 4096 tokens decode: 512 tokens
			Maximum Throughput (Queries per Second)
L40	granite-3.1-8b-base		1.4	7.8	1.1	6.2	15.5	6.0	0.7
	granite-3.1-8b-base-FP8-dynamic (this model)	1.12	2.1	7.4	1.3	5.9	15.3	6.9	0.8
	granite-3.1-2b-base-quantized.w4a16	1.29	2.4	8.9	1.4	7.1	17.8	7.8	1.0