Explanipedia

RingX: Scalable Parallel Attention for Long-Context Learning on HPC Open

Junqi Yin, Mallikarjun Shankar, Feiyi Wang · 2025

AI Agents for Enabling Autonomous Experiments at ORNL's HPC and Manufacturing User Facilities Open

Daniel Rosendo, Stephen DeWitt, Renan Souza, Phillipe Austria, Tirthankar Ghosal , et al. · 2025

Secure API-Driven Research Automation to Accelerate Scientific Discovery Open

Tyler J. Skluzacek, Paul Bryant, A. J. Ruckman, Daniel Rosendo, Suzanne Prentice , et al. · 2025

The Secure Scientific Service Mesh (S3M) provides API-driven infrastructure to accelerate scientific discovery through automated research workflows. By integrating near real-time streaming capabilities, intelligent workflow orchestration, …

Enabling Seamless Transitions from Experimental to Production HPC for Interactive Workflows Open

Brian D. Etz, David Rogers, Michael J. Brim, Ketan Maheshwari, Kellen Leland , et al. · 2025

The evolving landscape of scientific computing requires seamless transitions from experimental to production HPC environments for interactive workflows. This paper presents a structured transition pathway developed at OLCF that bridges the…

Synthesis and Assessment of Porcelain Ceramic Slurry with Silica Gel for Prolonged Printability Open

Palivela Bhargav Chandan, B. Anand Kumar, Devara Venkata Krishna, Mallikarjun Shankar · 2025

3D printing of ceramics grabbed its attention recently because of its ease of shaping. The extrusion-based 3D printing technique is widely used for ceramics as it involves paste formulation. However, the slurry is often formulated and mixe…

Mixed-precision numerics in scientific applications: survey and perspectives Open

Aditya Kashi, Hao Lü, Wesley Brewer, David Rogers, Michael J. Matheson , et al. · 2024

The explosive demand for artificial intelligence (AI) workloads has led to a significant increase in silicon area dedicated to lower-precision computations on recent high-performance computing hardware designs. However, mixed-precision cap…

OLCF’s Advanced Computing Ecosystem (ACE): FY24 Efforts for the DOE Integrated Research Infrastructure (IRI) Program Open

Sarp Oral, Rafael Ferreira da Silva, Subil Abraham, Ryan Adamson, Valentine Anantharaj , et al. · 2024

This report highlights significant strides made by Oak Ridge National Laboratory’s Oak Ridge Leadership Computing Facility (OLCF) in advancing computational research and infrastructure. Through the Advanced Computing Ecosystem (ACE) strate…

Low-Overhead Iterative Channel Parameter Estimation for Multi-User OAM Wireless Backhaul Open

Wen-Xuan Long, Nian Li, Yuan Liu, Mallikarjun Shankar, Rui Chen · 2024

This paper considers the issue of acquiring channel state information (CSI) for multi-user orbital angular momentum (MU-OAM) wireless backhaul between the macro base station (MBS) and small base stations (SBSs) within broadcasting networks…

Oak Ridge National Laboratory's Strategic Research and Development Insights for Digital Twins Open

Anees Al‐Najjar, Valentine Anantharaj, D. Asthagiri, Vittorio Badalassi, Prasanna Balaprakash , et al. · 2024

Oak Ridge National Laboratory (ORNL) is pleased to provide our response to the NITRD RFI on Digital Twins Research and Development. Digital twins are virtual representations of physical systems, leveraging real-time data to simulate and pr…

Scalable Artificial Intelligence for Science: Perspectives, Methods and Exemplars Open

Wesley Brewer, Aditya Kashi, Sajal Dash, Aristeidis Tsaris, Junqi Yin , et al. · 2024

In a post-ChatGPT world, this paper explores the potential of leveraging scalable artificial intelligence for scientific discovery. We propose that scaling up artificial intelligence on high-performance computing platforms is essential to …

Dynamic Indoor mmWave MIMO Radar Simulation: An Image Rendering-Based Approach Open

Yuan Liu, Moein Ahmadi, Johann Fuchs, Mohammad Alaee‐Kerahroodi, Mallikarjun Shankar · 2024

US Department of Energy, Office of Science, High-Performance Computing Facility: 2023 Operational Assessment Oak Ridge Leadership Computing Facility Open

Subil Abraham, Paul Abston, Ryan Adamson, Valentine Anantharaj, Ashley Barker , et al. · 2024

The Oak Ridge Leadership Computing Facility (OLCF) was established to accelerate scientific discovery by providing world-leading computational performance and advanced data infrastructure. As a US Department of Energy (DOE) Office of Scien…

Index Open

Kumar Vijay Mishra, Mallikarjun Shankar, Björn Ottersten, A. Lee Swindlehurst · 2024

Epilogue Open

Kumar Vijay Mishra, Mallikarjun Shankar, Björn Ottersten, A. Lee Swindlehurst · 2024

Zero coordinate shift: Whetted automatic differentiation for physics-informed operator learning Open

Kuangdai Leng, Mallikarjun Shankar, Jeyan Thiyagalingam · 2024

Automatic differentiation (AD) is a critical step in physics-informed machine learning, required for computing the high-order derivatives of network output w.r.t. coordinates of collocation points. In this paper, we present a novel and lig…

Federated IRI Science Testbed (FIRST): A Concept Note Open

Inder Monga, Chin Guok, Mallikarjun Shankar · 2023

The Department of Energy’s (DOE’s) vision for an Integrated Research Infrastructure (IRI) is to empower researchers to smoothly and securely meld the DOE’s world-class user facilities and research infrastructure in novel ways in order to r…

FORGE: Pre-Training Open Foundation Models for Science Open

Junqi Yin, Sajal Dash, Feiyi Wang, Mallikarjun Shankar · 2023

Large language models (LLMs) are poised to revolutionize the way we conduct scientific research. However, both model complexity and pre-training cost are impeding effective adoption for the wider science community. Identifying suitable sci…

Zero Coordinate Shift: Whetted Automatic Differentiation for Physics-informed Operator Learning Open

Kuangdai Leng, Mallikarjun Shankar, Jeyan Thiyagalingam · 2023

Automatic differentiation (AD) is a critical step in physics-informed machine learning, required for computing the high-order derivatives of network output w.r.t. coordinates of collocation points. In this paper, we present a novel and lig…

DeepSpeed4Science Initiative: Enabling Large-Scale Scientific Discovery through Sophisticated AI System Technologies Open

Shuaiwen Leon Song, Bonnie Kruft, Minjia Zhang, Conglong Li, Shiyang Chen , et al. · 2023

In the upcoming decade, deep learning may revolutionize the natural sciences, enhancing our capacity to model and predict natural occurrences. This could herald a new era of scientific exploration, bringing significant advancements across …

Vortex Wavefront FMCW ISAC Model: A Blender-Based Evaluation Open

Yuan Liu, Wen-Xuan Long, Rui Chen, Linlong Wu, Mallikarjun Shankar · 2023

Integrated sensing and Communication (ISAC) systems are key enablers for 6G networks, offering promising applications in indoor scenarios, such as high-accuracy localization, tracking, imaging, augmented senses, and gesture recognition. In…

Multi-IRS-Aided Doppler-Tolerant Wideband DFRC System Open

Tong Wei, Linlong Wu, Kumar Vijay Mishra, Mallikarjun Shankar · 2023

Intelligent reflecting surface (IRS) is recognized as an enabler of future dual-function radar-communications (DFRC) by improving spectral efficiency, coverage, parameter estimation, and interference suppression. Prior studies on IRS-aided…

A Blender-based channel simulator for FMCW Radar Open

Yuan Liu, Moein Ahmadi, Johann Fuchs, Mohammad Alaee‐Kerahroodi, Mallikarjun Shankar · 2023

Radar simulation is a promising way to provide data-cube with effectiveness and accuracy for AI-based approaches to radar applications. This paper develops a channel simulator to generate frequency-modulated continuous-wave (FMCW) waveform…

Integrated Research Infrastructure Architecture Blueprint Activity (Final Report 2023) Open

William Miller, Deborah Bard, A. Boehnlein, Kjiersten Fagnan, Chin Guok , et al. · 2023

The complexity of scientific pursuits is increasing rapidly with aspects that require dynamic integration of experiment, observation, theory, modeling, simulation, visualization, machine learning (ML), artificial intelligence (AI), and ana…

Next-Generation IoT Networks: Integrated Sensing Communication and Computation Open

Kunwar Pritiraj Rajput, Linlong Wu, Mallikarjun Shankar · 2023

To enable the exponential expansion of Internet of Things (IoT) applications, IoT devices must gather and transmit massive amounts of data to the server for further processing. By employing the same signals for both radar sensing and data …

RIS-Aided Wideband Holographic DFRC Open

Tong Wei, Linlong Wu, Kumar Vijay Mishra, Mallikarjun Shankar · 2023

To enable non-line-of-sight (NLoS) sensing and communications, dual-function radar-communications (DFRC) systems have recently proposed employing reconfigurable intelligent surface (RIS) as a reflector in wireless media. However, in the de…

Energy-Efficient Service-Aware Multi-Connectivity Scheduler for Uplink Multi-Layer Non-Terrestrial Networks Open

Michael N. Dazhi, Hayder Al-Hraishawi, Mallikarjun Shankar, Symeon Chatzinotas, Björn Ottersten · 2023

This paper introduces the concept of energy efficiency (EE) in the uplink with the capability of multi-connectivity (MC) in a multi-orbit non-terrestrial network (NTN), where user terminals (UTs) can be simultaneously served by more than o…

Aero structural and Electromagnetic Design Optimisation of Maritime Patrol Aircraft Radome Using Direct Search Algorithms Open

Mallikarjun Shankar, A.C. Niranjanappa, B. Dattaguru · 2023

Airborne surveillance systems such as Maritime Patrol Aircraft are deployed by armed forces to collect surveillance information on airborne and sea surface enemy targets. Airborne Electronically Scanned Array Radar is an electromagnetic se…

High Performance Computing Facility Operational Assessment 2022: Oak Ridge Leadership Computing Facility Open

Subil Abraham, J. Abston, Ryan Adamson, Scott Atchley, Aaron Barlow , et al. · 2023

The Oak Ridge Leadership Computing Facility (OLCF) was established to accelerate scientific discovery by providing world-leading computational performance and advanced data infrastructure. As a US Department of Energy (DOE) Office of Scien…

Tokenized Data for FORGE Foundation Models Open

Junqi Yin, Sajal Dash, Feiyi Wang, Mallikarjun Shankar · 2023

This dataset comprises a vast corpus of 257 billion tokens, accompanied by the corresponding vocabulary file employed in the pre-training of FORGE foundation models. The primary data source for this corpus is scientific documents derived f…

Joint Waveform and Receive Filter Design for Pulse Compression in Weather Radar Systems Open

Mohammad Alaee‐Kerahroodi, Linlong Wu, Ehsan Raei, Mallikarjun Shankar · 2023

The meteorological industry is currently exploring Solid State Weather Radar (SSWR) systems, a new technology that emits minimal transmission power, to minimize harm to the environment and reduce system cost. However, accurately estimating…

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