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Hybrid parallelism underpins large-scale LLM training across tens of thousands of GPUs. At such scale, hardware failures on individual devices lead to performance skew across devices, diminishing overall training efficiency. Existing…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-12 Tenghui Ma , Jihu Guo , Wei Gao , Sitian Lu , Zhisheng Ye , Hanjing Wang , Dahua Lin

Power efficiency has recently become a major concern in the high-performance computing domain. HPC centers are provisioned by a power bound which impacts execution time. Naturally, a tradeoff arises between power efficiency and…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-10-28 Ramy Medhat , Borzoo Bonakdarpour , Sebastian Fischmeister

Emerging deep learning workloads urgently need fast general matrix multiplication (GEMM). To meet such demand, one of the critical features of machine-learning-specific accelerators such as NVIDIA Tensor Cores, AMD Matrix Cores, and Google…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-11-13 Bo Fang , Xinyi Li , Harvey Dam , Cheng Tan , Siva Kumar Sastry Hari , Timothy Tsai , Ignacio Laguna , Dingwen Tao , Ganesh Gopalakrishnan , Prashant Nair , Kevin Barker , Ang Li

Comprehending the performance bottlenecks at the core of the intricate hardware-software interactions exhibited by highly parallel programs on HPC clusters is crucial. This paper sheds light on the issue of automatically asynchronous MPI…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-09-06 Ayesha Afzal , Georg Hager , Stefano Markidis , Gerhard Wellein

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).…

Software Engineering · Computer Science 2026-04-06 Scott Piersall , Yang Gao , Shenyang Liu , Liqiang Wang

Software vulnerabilities continue to be ubiquitous, even in the era of AI-powered code assistants, advanced static analysis tools, and the adoption of extensive testing frameworks. It has become apparent that we must not simply prevent…

Use of standards-based workflows is still somewhat unusual by high-performance computing users. In this paper we describe the experience of using the Common Workflow Language (CWL) standards to describe the execution, in parallel, of…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-11-25 Rupert W. Nash , Nick Brown , Michael R. Crusoe , Max Kontak

To ensure resilient neural network processing on even unreliable hardware, comprehensive reliability analysis against various hardware faults is generally required before the deep neural network models are deployed, and efficient error…

Machine Learning · Computer Science 2023-12-25 Haitong Huang , Cheng Liu , Bo Liu , Xinghua Xue , Huawei Li , Xiaowei Li

Presolving has become an essential component of modern MIP solvers both in terms of computational performance and numerical robustness. In this paper, we present PaPILO, a new C++ header-only library that provides a large set of presolving…

Optimization and Control · Mathematics 2024-03-21 Ambros Gleixner , Leona Gottwald , Alexander Hoen

Future exascale high-performance computing (HPC) systems will be constructed from VLSI devices that will be less reliable than those used today, and faults will become the norm, not the exception. This will pose significant problems for…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-05-24 Saurabh Hukerikar , Robert F. Lucas

Large Language Models (LLMs) have emerged as promising tools for malware detection by analyzing code semantics, identifying vulnerabilities, and adapting to evolving threats. However, their reliability under adversarial compiler-level…

Cryptography and Security · Computer Science 2025-09-23 Ekin Böke , Simon Torka

Many inference services based on large language models (LLMs) pose a privacy concern, either revealing user prompts to the service or the proprietary weights to the user. Secure inference offers a solution to this problem through secure…

Cryptography and Security · Computer Science 2024-08-08 Deevashwer Rathee , Dacheng Li , Ion Stoica , Hao Zhang , Raluca Popa

Composability is one of seven reasons for the long-standing and continuing success of MPI. Extending MPI by composing its operations with user-level operations provides useful integration with the progress engine and completion notification…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-09-27 Derek Schafer , Sheikh Ghafoor , Daniel Holmes , Martin Ruefenacht , Anthony Skjellum

Recent breakthroughs in ML have produced new classes of models that allow ML inference to run directly on milliwatt-powered IoT devices. On one hand, existing ML-to-FPGA compilers are designed for deep neural-networks on large FPGAs. On the…

Hardware Architecture · Computer Science 2021-07-09 Nikhil Pratap Ghanathe , Vivek Seshadri , Rahul Sharma , Steve Wilton , Aayan Kumar

The Message Passing Interface (MPI) is widely used in parallel, high-performance programming, yet writing bug-free software that uses MPI remains difficult. We introduce DafnyMPI, a novel, scalable approach to formally verifying MPI…

Programming Languages · Computer Science 2025-12-23 Aleksandr Fedchin , Antero Mejr , Hari Sundar , Jeffrey S. Foster

Large language models (LLMs) inference is both expensive and slow. Local caching of responses offers a practical solution to reduce the cost and latency of LLM queries. In research contexts, caching also enhances reproducibility and…

Software Engineering · Computer Science 2025-12-01 Yihan Dai , Dimitrios Stamatios Bouras , Haoxiang Jia , Sergey Mechtaev

Error-bounded lossy compression is becoming more and more important to today's extreme-scale HPC applications because of the ever-increasing volume of data generated because it has been widely used in in-situ visualization, data stream…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-11-24 Baodi Shan , Aabid Shamji , Jiannan Tian , Guanpeng Li , Dingwen Tao

Fault injection is a key technique for assessing software reliability, enabling proactive detection of system defects before they manifest in production. However, the increasing complexity of microservice architectures leads to exponential…

Software Engineering · Computer Science 2026-01-22 Yuzhen Tan , Jian Wang , Shuaiyu Xie , Bing Li , Yunqing Yong , Neng Zhang , Shaolin Tan

We introduce Lemon, an MPI parallel I/O library that is intended to allow for efficient parallel I/O of both binary and metadata on massively parallel architectures. Motivated by the demands of the Lattice Quantum Chromodynamics community,…

High Energy Physics - Lattice · Physics 2019-08-13 Albert Deuzeman , Siebren Reker , Carsten Urbach

HPC systems keep growing in size to meet the ever-increasing demand for performance and computational resources. Apart from increased performance, large scale systems face two challenges that hinder further growth: energy efficiency and…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-01-06 Ioannis Vardas , Manolis Ploumidis , Manolis Marazakis