Improving MPI Error Detection and Repair with Large Language Models and Bug References

• URL: http://arxiv.org/abs/2604.02398v1
• Date: Thu, 02 Apr 2026 14:00:53 GMT
• Title: Improving MPI Error Detection and Repair with Large Language Models and Bug References
• Abstract summary: Message Passing Interface (MPI) is a foundational technology in high-performance computing.<n>In this paper, we design a bug detection and repair technique alongside Few-Thought Learning, Chain-of-Shot reasoning, and Retrieval Augmented Generation.<n>Our experiments demonstrate our bug referencing technique generalizes well to other large language models.
• Score: 8.325950934287699
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Message Passing Interface (MPI) is a foundational technology in high-performance computing (HPC), widely used for large-scale simulations and distributed training (e.g., in machine learning frameworks such as PyTorch and TensorFlow). However, maintaining MPI programs remains challenging due to their complex interplay among processes and the intricacies of message passing and synchronization. With the advancement of large language models like ChatGPT, it is tempting to adopt such technology for automated error detection and repair. Yet, our studies reveal that directly applying large language models (LLMs) yields suboptimal results, largely because these models lack essential knowledge about correct and incorrect usage, particularly the bugs found in MPI programs. In this paper, we design a bug detection and repair technique alongside Few-Shot Learning (FSL), Chain-of-Thought (CoT) reasoning, and Retrieval Augmented Generation (RAG) techniques in LLMs to enhance the large language model's ability to detect and repair errors. Surprisingly, such enhancements lead to a significant improvement, from 44% to 77%, in error detection accuracy compared to baseline methods that use ChatGPT directly. Additionally, our experiments demonstrate our bug referencing technique generalizes well to other large language models.

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