Software and Hardware Co-optimization for General Large Language Model Inference on CPU


I. Background

Large Language Models (LLMs) have achieved remarkable performance in most natural language processing downstream tasks, such as text understanding, text generation, machine translation, and interactive Q&A. However, the billions or even trillions of model parameters pose significant challenges for efficient deployment of LLMs at the edge. With the growth rate of model parameters far outpacing the improvement in hardware performance, the academic and industrial communities are exploring software and hardware collaborative methods like model compression, dataflow optimization and operator invocation to deploy and run large models under the limited hardware conditions.

Given the rapidly increasing demand for deploying large models at the edge and the generality of computing resources, deploying large models on CPU architecture processors has become one of the important development directions. The industry has recently been releasing large models that can be deployed on edge devices, further promoting this technological trend and attracting more developers from academia and industry. How to systematically optimize large models to cope with insufficient hardware performance has become a key issue for efficient inference of large models at the edge. Due to the fact that most of the edge devices run on Arm-based CPUs, 2024 AICAS conference organizes this grand challenge on software and hardware co-optimization for general LLM Inference on the YiTian 710 CPU of the Arm V9 architecture as the computing power platform, aiming to promote and drive the related technologies.


II. Schedule and General Information

A. Grand Challenge Scheme:

B. Important Dates:

C. Registration for the AICAS Grand Challenge 2024:

D. Awards:

E. Workshop for Finalist Teams:

Participants will work on the Qwen-7B large language model and propose methods from various aspects, such as model compression, parameter sparsity, model quantization and structural pruning. In addition, combining the hardware features of the Arm architecture and the open-source software resources (such as hardware BF16, vector matrix multiplication and Arm Compute Library) to systematically optimize and enhance the model's inference performance on hardware. The participants' optimization methods will be scored based on a testing scheme designated by the competition's organizing committee.

Qwen is a LLM officially released by Alibaba Cloud Computing Co. Ltd., with parameter scales ranging from billions to trillions. The comprehensive performance of this model is well-rounded in mainstream benchmark evaluations. Among them, the 7-billion-parameter general-purpose model Qwen-7B and the dialogue model Qwen-7B-Chat are open-source and free versions. Alibaba Cloud provides multiple global channels for accessing the models. Besides, Alibaba Cloud also provides related procedures for Qwen LLM training, deployment, and inference.

For the preliminary stage of the competition, the organizing committee will not provide any specific datasets. Participant teams are free to choose open-source datasets for training and fine-tuning. Additionally, no particular hardware platform is specified for this stage. Teams have the autonomy to select their hardware platforms for validating their large model optimization methods. They will conduct a comprehensive performance evaluation, comparing the Abilities and Efficiencies of the deployed LMM performance before and after optimization. 32 teams will be shortlisted to the next round based on the preliminary score ranking of the participating teams and the results of code reviews.

During the final stage, the organizing committee will provide a specified dataset, which is yet to be confirmed. The participating teams will carry out software and hardware collaborative optimization for large models based on the unified YiTian 710 CPU provided by the organizing committee. Teams will propose targeted algorithm inference and deployment strategy optimizations, followed by a comprehensive performance evaluation and a before-and-after comparison of the deployment.

Preliminary Round Start

January 4, 2024

Preliminary Round End

February 27, 2024

Competition Workshop

March 2, 2024

Final Round Start

March 3, 2024

Final Round End

April 4, 2024

Results Announcement

April 10, 2024

AICAS Conference & Ceremony

April 22, 2024

Competition Workshop*: After the preliminary round, the organizing committee will hold a competition workshop in China, inviting the finalist teams to participate. The conference will invite experts from the organizers to give a keynote speech and arrange networking activities. The organizing committee will reimburse the travel and accommodation expenses incurred by the participating teams for attending the workshop (subject to meeting the cost standard requirements).

AICAS Conference & Ceremony**: After the semi-final round, the organizing committee will invite the winning teams to the main venue of the 2024 AICAS in the United Arab Emirates for a defense and to participate in conference activities. The organizing committee will reimburse the travel and accommodation expenses incurred by participating teams for attending the symposium (subject to meeting the cost standard requirements).

  • Log in to the Tianchi platform at the provided URL: https://tianchi.aliyun.com/competition/entrance/532170
  • Complete the registration by filling in personal information. Participants and the supervisors are required to provide real-name verification.
  • Each participating team can have up to five contestants and two supervisors, and each contestant can only participate in one team.
  • Team formation changes and other operations must also be completed by February 24th, 2024, 23:59:59.
  • Scan the QR-Code and enter the Q&A group (Optional).
  • We welcome researchers from both academic and non-academic backgrounds, (including industry, government agencies, hospitals, etc.), to participate in this grand challenge.
  • The staffs from T-head, Arm, Arm China and Institute for Intelligent Computing of Alibaba Group are not allowed to participate in the award evaluation.
  • A $15,000 cash prize pool.
  • The top 32 entrants will be invited to attend the China Competition Seminar, and the top 6 entrants will be invited to the AICAS 2024 conference site, with travel expenses covered by the organizing committee. Eligibility will be determined by their final scores, the quality of the technical report submitted, and the quality of the paper.

The pre-tax prize distribution for the competition is as follows:

  • First Place: USD 6000 (for 1 team, ranking #1)
  • Second Place: USD 3000 (for 2 teams, ranking #2,3)
  • Third Place: USD 1,000 (for 3 teams, #ranking #4,5,6)

III. Evaluation

Evaluation aspect Contents Evaluation approach
Model Ability
  • Model inference accuracy
Participants are required to run the analysis tool lm-evaluation-harness locally to evaluate their model's performance. This tool will generate a json file containing the performance data, which will be used for further evaluation in the competition
Model Efficiency
  • Parameter Compression Rate
  • Inference Latency Acceleration Rate
  • Throughput Improvement Rate
Participants are required to run the analysis tool optimum-benchmark locally to evaluate their model's performance. This tool will generate a CSV file containing the performance data, which will be used for further evaluation in the competition.

1. Ability Test:

Accuracy: The models' performance will be evaluated using open source testing tool lm-evaluation-harness to run the following test datasets locally: ARC_challenge\HellaSwag\Piqa. For the scoring criteria, the average score of QWEN-72B on chosen test datasets will be used as PMax, and the average score of QWEN-7B-INT4 on the same test datasets will serve as PMin. If a participant's model score is lower than PMin, it will be considered as not scoring in the model accuracy optimization aspect. The specific calculation formula is as follows:

2. Efficiency Test

Model Parameter Compression Rate

This metric is the percentage of the number of parameters before and after model compression. The original size of the QWEN-7B model is taken as Mori, and the size of the optimized QWEN-7B model as Mopt. The highest compression rate, CR, among all competing teams, will be used as the normalization parameter. The specific calculation formula is as follows:

Inference Latency Acceleration Rate

This encourages participants to propose new methods for inference optimization. The organizing committee will compare the improvement ratio of inference time before and after optimization. The initial latency acceleration rate is denoted as Lori, and the post-optimization latency acceleration rate as Lopt. The highest value of latency acceleration rate, CS, among all teams will be used as a normalization parameter. The specific calculation formula is as follows:

Throughput Improvement Rate

The change in the model's throughput before and after optimization is analyzed using the open-source tool Optimum-benchmark. The original throughput of QWEN-7B is represented as Tori, and the throughput after optimization as Topt. The highest throughput value among all teams, denoted as CY, will be used as the normalization parameter. The specific calculation formula is as follows:

The scores in the competition will be weighted summed. The specific formula for this calculation is provided in the document, detailing how different aspects of the participants' model performance will be combined to derive their summed score:

The submission requirements at this stage for the competition include:

  • Test Report: This should present the results of the team's optimized QWEN-7B model, including documentation of the designated third-party testing software results.
  • Technical Documentation: This document should describe the methods the team used to optimize the large model.
  • Source Code: The actual source code used for optimizing the model must be submitted.

In the final stage, teams are required to deploy and optimize the LLMs on the unitive Arm architecture hardware platform. (The specific platform information will be announced by the organizing committee) They must use the dataset provided by the organizing committee to evaluate model inference accuracy, performance, and hardware resource utilization. The hardware resource utilization evaluation involves normalizing the CPU computing resources (core numbers, thread counts, etc.) and storage resources (memory usage, disk space, etc.) occupied by each team's optimized model on the unitive platform. The maximum and minimum resource usages from all submitted final results are denoted as HRMax and HRMin, respectively. The specific calculation formula for this evaluation is as follows:

During the final stage, teams will use the dataset provided by the organizing committee to evaluate their model's inference accuracy, inference performance, and hardware resource utilization. The specific formulas for calculating these metrics are detailed in the document. These formulas will guide the evaluation of each team's optimization efforts in terms of model accuracy, performance efficiency, and the extent of hardware resources used:

The final rankings and prize distribution of the competition will be based on the scores obtained in both the preliminary and final rounds. The final scoring formula, as shown in the document, combines these scores to determine the overall ranking of the teams. This formula encapsulates various factors evaluated during the competition stages:

After the final round of the competition, teams need to submit:

  • Research Paper: This paper should introduce the team's LLM application scenarios, their approach to software and hardware collaborative design, and a comparison of various performance indicators before and after optimization, along with a performance summary.
  • Source Code: The actual source code used for optimizing the model must be submitted. (Sponsors have the right to use GC participant teams' code and development cases in open-source communities (like Github or Huggingface) as promotional materials or inclusion in the sponsors’ relevant product's open-source toolkits.)

Note: The submission limit for the preliminary round and the final round is 5 times per day.


IV. The Grand Challenge Organizing Committee

Li Du

Nanjing University, China

Yuan Du

Nanjing University, China

Wei Mao

Xidian University, China

Bo Li

Xidian University, China

Yongfu Li

Shanghai Jiaotong University, China

Xiaohan Ma

Alibaba Group

Guosheng Yu

Alibaba Group

Evens Pan

Arm China

David Bian

Arm China


For more inquiries

Contact: Dr. Wei Mao, maowei@xidian.edu.cn