Confidant: Customizing Transformer-based LLMs via Collaborative Edge Training

• URL: http://arxiv.org/abs/2311.13381v1
• Date: Wed, 22 Nov 2023 13:20:59 GMT
• Title: Confidant: Customizing Transformer-based LLMs via Collaborative Edge Training
• Authors: Yuhao Chen, Yuxuan Yan, Qianqian Yang, Yuanchao Shu, Shibo He, Jiming Chen
• Abstract summary: Transformer-based large language models (LLMs) have demonstrated impressive capabilities in a variety of natural language processing (NLP) tasks. It is challenging to deploy and fine-tune LLMs on mobile edge devices with limited computing, memory, and energy budgets. We propose Confidant, a multi-backend collaborative training framework for customizing state-of-the-art LLMs on commodity mobile devices.
• Score: 18.526329975259483
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Transformer-based large language models (LLMs) have demonstrated impressive capabilities in a variety of natural language processing (NLP) tasks. Nonetheless, it is challenging to deploy and fine-tune LLMs on mobile edge devices with limited computing, memory, and energy budgets. In this paper, we propose Confidant, a multi-backend collaborative training framework for customizing state-of-the-art LLMs on commodity mobile devices like smartphones. Confidant partitions an LLM into several sub-models so that each fits into a mobile device's memory. A pipeline parallel training mechanism is further developed to ensure fast and efficient distributed training. In addition, we propose a novel backend scheduler to allocate different attention heads to heterogeneous compute hardware, including mobile CPU and GPUs, to maximize the compute resource utilization on each edge device. Our preliminary experimental results show that Confidant achieves at most 45.3% memory reduction and 8.03x inference speedup in practical settings.

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