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Ubiquity of AI makes optimizing GPU power a priority as large GPU-based clusters are often employed to train and serve AI models. An important first step in optimizing GPU power consumption is high-fidelity and fine-grain power measurement…

Hardware Architecture · Computer Science 2025-04-01 Varsha Singhania , Shaizeen Aga , Mohamed Assem Ibrahim

GPUs are known to be power-hungry, and due to the boom in artificial intelligence, they are currently the major contributors to the high power demands of upcoming datacenters. Most GPU usage in these popular workloads consist of large…

Artificial Intelligence · Computer Science 2024-09-30 Theo Gregersen , Pratyush Patel , Esha Choukse

Energy modelling can enable energy-aware software development and assist the developer in meeting an application's energy budget. Although many energy models for embedded processors exist, most do not account for processor-specific…

Software Engineering · Computer Science 2023-01-31 Kris Nikov , Kyriakos Georgiou , Zbigniew Chamski , Kerstin Eder , Jose Nunez-Yanez

Energy efficiency is a growing concern for modern computing, especially for HPC due to operational costs and the environmental impact. We propose a methodology to find energy-optimal frequency and number of active cores to run single-node…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-05-04 Vitor R. G. Silva , Alex Furtunato , Kyriakos Georgiou , Kerstin Eder , Samuel Xavier-de-Souza

Graphics Processing Units (GPUs) are now powerful and flexible systems adapted and used for other purposes than graphics calculations (General Purpose computation on GPU -- GPGPU). We present here a prototype to be integrated into…

Distributed, Parallel, and Cluster Computing · Computer Science 2007-06-13 Sylvain Collange , Marc Daumas , David Defour

As supercomputers grow in size and complexity, power efficiency has become a critical challenge, particularly in understanding GPU power consumption within modern HPC workloads. This work addresses this challenge by presenting a data…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-22 Melanie Cornelius , Greg Cross , Shilpika Shilpika , Matthew T. Dearing , Zhiling Lan

Workload characterization is an integral part of performance analysis of high performance computing (HPC) systems. An understanding of workload properties sheds light on resource utilization and can be used to inform performance…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-01-16 Nikolay A. Simakov , Joseph P. White , Robert L. DeLeon , Steven M. Gallo , Matthew D. Jones , Jeffrey T. Palmer , Benjamin Plessinger , Thomas R. Furlani

Artificial Intelligence (AI) applications, such as Large Language Models, are primarily driven and executed by Graphics Processing Units (GPUs). These GPU programs (kernels) consume substantial amounts of energy, yet software developers…

Software Engineering · Computer Science 2026-01-21 Saurabhsingh Rajput , Alexander Brandt , Vadim Elisseev , Tushar Sharma

Current climate change has posed a grand challenge in the field of numerical modeling due to its complex, multiscale dynamics. In hydrological modeling, the increasing demand for high-resolution, real-time simulations has led to the…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-04 Johansell Villalobos , Daniel Caviedes-Voullième , Silvio Rizzi , Esteban Meneses

Many modern parallel computing systems are heterogeneous at their node level. Such nodes may comprise general purpose CPUs and accelerators (such as, GPU, or Intel Xeon Phi) that provide high performance with suitable energy-consumption…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-04-19 Suejb Memeti , Lu Li , Sabri Pllana , Joanna Kolodziej , Christoph Kessler

As research and deployment of AI grows, the computational burden to support and sustain its progress inevitably does too. To train or fine-tune state-of-the-art models in NLP, computer vision, etc., some form of AI hardware acceleration is…

Hardware Architecture · Computer Science 2024-03-01 Dan Zhao , Siddharth Samsi , Joseph McDonald , Baolin Li , David Bestor , Michael Jones , Devesh Tiwari , Vijay Gadepally

With the rise of AI in recent years and the increase in complexity of the models, the growing demand in computational resources is starting to pose a significant challenge. The need for higher compute power is being met with increasingly…

Power consumption costs takes upto half of operational expenses of datacenters making power management a critical concern. Advances in processor technology provide fine-grained control over operating frequency and voltage of processors and…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-11-13 Swetha P. T. Srinivasan , Umesh Bellur

The hardware diversity in leadership-class computing facilities, alongside the immense performance boosts from today's GPUs when computing in lower precision, incentivizes scientific HPC workflows to adopt mixed-precision algorithms and…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-10-06 Sreeram Venkat , Kasia Swirydowicz , Noah Wolfe , Omar Ghattas

The high-performance computing (HPC) community has recently seen a substantial diversification of hardware platforms and their associated programming models. From traditional multicore processors to highly specialized accelerators, vendors…

Plasma Physics · Physics 2024-11-11 Josef Ruzicka , Christian Asch , Esteban Meneses , Markus Rampp , Erwin Laure

The surge for computing resource demand is increasing global electricity consumption in data centers which is expected to exceed 1000 TWh by 2026, mainly attributable to adoption of new AI technologies. Carbon-aware computing strategies can…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-14 Marvin Steinke

OpenMC is an open source Monte Carlo neutral particle transport application that has recently been ported to GPU using the OpenMP target offloading model. We examine the performance of OpenMC at scale on the Frontier, Polaris, and Aurora…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-03-20 John Tramm , Paul Romano , Patrick Shriwise , Amanda Lund , Johannes Doerfert , Patrick Steinbrecher , Andrew Siegel , Gavin Ridley

Main memory's rising energy consumption has emerged as a critical challenge in modern computing architectures, particularly in large-scale systems, driven by frequent access patterns, growing data volumes, and insufficient power management…

BATSRUS, our state-of-the-art extended magnetohydrodynamic code, is the most used and one of the most resource-consuming models in the Space Weather Modeling Framework. It has always been our objective to improve its efficiency and speed…

Instrumentation and Methods for Astrophysics · Physics 2025-01-14 Yifu An , Yuxi Chen , Hongyang Zhou , Alexander Gaenko , Gábor Tóth

As GPU-accelerated mathematical programming techniques mature, there is growing interest in utilizing them to address the computational challenges of power system optimization. This paper introduces ExaModelsPower.jl, an open-source…

Systems and Control · Electrical Eng. & Systems 2026-03-16 Sanjay Johnson , Dirk Lauinger , Sungho Shin , François Pacaud