arXiv Machine Learning

Fault-tolerant foundation models

The paper demonstrates that large‑language models can be trained to tolerate unreliable computer hardware, with their error resilience improving as the models grow. Using 40,000 GPU‑hours of training on simulated faulty hardware, the authors derive modified neural scaling laws that show models learn to compute within efficient error‑correcting codes. This suggests that, if formally fault‑tolerant, such models could enable AI inference on low‑energy, faulty hardware, potentially yielding significant energy savings.

arXiv AI
1d ago

Analysis of LLM Vulnerability to GPU Soft Errors: An Instruction-Level Fault Injection Study

The paper presents the first instruction-level fault injection study of large language model (LLM) inference, focusing on how GPU soft errors affect these compute- and memory-intensive models. It examines the impact of model architecture, parameter scale, and task complexity on LLM vulnerability, revealing distinct reliability characteristics compared to earlier neural networks. The study offers new insights that can guide the development of more effective fault tolerance mechanisms for LLMs.

By Duo Chai, Zizhen Liu, Shuhuai Wang, Songwei Pei, Cheng Liu, Huawei Li, Shangguang Wang
arXiv Machine Learning
Oct 5

Exploring the Trade-Off Between Structured Pruning and Fault Tolerance in Deep Neural Networks for Space Applications

The study examines how reducing the width of deep neural networks through structured pruning affects their robustness to Single Event Upsets (SEUs). By iteratively pruning baseline models and conducting fault-injection tests at each stage, the authors find that while pruning increases per-inference sensitivity to bit-flips, the shorter execution time offsets this, lowering the overall SEU probability. Consequently, structured pruning can deliver energy and latency savings without compromising reliability for space-based AI systems.

By Toon Vinck, Na\"in Jonckers, Jaro De Roose, Jeffrey Prinzie, Peter Karsmakers
arXiv AI
Jul 7

From Arithmetic to Logic: The Resilience of Logic and Lookup-Based Neural Networks Under Parameter Bit-Flips

arXiv:2603. 22770v2 Announce Type: replace-cross Abstract: The deployment of deep neural networks (DNNs) in safety-critical edge environments necessitates robustness against hardware-induced bit-flip errors.

By Alan T. L. Bacellar, Sathvik Chemudupati, Shashank Nag, Allison Seigler, Priscila M. V. Lima, Felipe M. G. Fran\c{c}a, Lizy K. John
arXiv AI
Sep 10

Limits of Reliability and Scaling in Language Models

The paper argues that large language models cannot achieve perfect reliability for any task, even with unlimited scale. It establishes that each generative task has an inherent reliability ceiling set by how much output uncertainty can be resolved from observable context, with a resolvable part that can be improved by more context and a subjective part tied to task ambiguity. The authors derive a scaling law showing that performance is limited by the scarcer resource—either training data or model capacity—and explain how this law explains phenomena such as retrieval augmentation and catastrophic forgetting.

By Subhabrata Majumdar
arXiv AI
Oct 26

RobustNCL: Robustifying Neuromorphic Continual Learning under Transient Faults with Lightweight Detect-and-Cure Strategy

RobustNCL is a lightweight framework that enhances the reliability of neuromorphic continual learning (NCL) systems against transient hardware faults. It detects faults during weight access from off‑chip memory and cures affected weights using one of three strategies—zero replacement, min/max value, or most‑probable value—storing curing values in radiation‑hardened memory. Experiments on Split MNIST, Split Fashion‑MNIST, Split CIFAR‑10, and Split CIFAR‑100 show that RobustNCL maintains accuracy within 0.5% of fault‑free models and significantly outperforms baseline NCL methods while adding negligible latency and energy overhead.

By Rachmad Vidya Wicaksana Putra, Shuochen Zhou, Muhammad Shafique
arXiv Machine Learning
Oct 16

Stateful Testing for Deep Learning Compilers

The paper introduces Rondo, a stateful testing framework for deep‑learning compilers that models each test as a model plus an invocation sequence. Rondo mutates sequences using a Markov chain Monte Carlo sampler guided by compilation behavior, and employs a three‑way differential oracle to detect bugs that arise only when compiler state is retained. Evaluated on four major frameworks and 24 model architectures, Rondo uncovered 117 bugs—35 of which were stateful—leading to 39 bug reports, 35 confirmed by developers, and 18 fixes, while achieving high coverage and precision.

By Jiatao Ge, Ruixiang Qian, Yibo Hu, Yanzhou Mu, Yinglong Zou, Jiawei Liu, Zhenyu Chen, Chunrong Fang
arXiv AI
Oct 9

Can Large Language Models Reinvent Foundational Algorithms?

The paper investigates whether large language models (LLMs) can reinvent foundational computer‑science algorithms by suppressing direct recall of target algorithms through unlearning techniques. Experiments show that LLMs fail to recover nearly half of the algorithms, and even without unlearning, recovery rates drop dramatically, indicating an overreliance on memorized knowledge. The study introduces a generative verifier to maintain reasoning strength and concludes that current LLMs have limited capacity for foundational algorithm innovation.

By Jian Zhao, Haoren Luo, Yu Wang, Yuhan Cao, Pingyue Sheng, Tianxing He