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GPU-accelerated ice sheet flow modeling
University of North Dakota

Sea levels are rising (3.7 mm/year and increasing!)! The primary contributor to rising sea levels is enhanced polar ice discharge due to climate change. However, their dynamic response to climate change remains a fundamental uncertainty in future projections. Computational cost limits the simulation time on which models can run to narrow the uncertainty in future sea level rise predictions. The project's overarching goal is to leverage GPU hardware capabilities to significantly alleviate the computational cost and narrow the uncertainty in future sea level rise predictions. Solving time-independent stress balance equations to predict ice velocity or flow is the most computationally expensive part of ice-sheet simulations in terms of computer memory and execution time. The PI developed a preliminary ice-sheet flow GPU implementation for real-world glaciers. This project aims to investigate the GPU implementation further, identify bottlenecks and implement changes to justify it in the price to performance metrics to a "standard" CPU implementation. In addition, develop a performance portable hardware (or architecture) agnostic implementation.

Status: In Progress

People with Expertise

Patrick Clemins

Vermont EPSCoR, University of Vermont

Programs

Northeast

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Expertise

Daniel Howard

University Corporation for Atmospheric Research

Programs

RMACC, Campus Champions, ACCESS CSSN

Roles

research computing facilitator, research software engineer

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Expertise

Katia Bulekova

Boston University

Programs

ACCESS CSSN, Campus Champions, CAREERS, Northeast

Roles

mentor, research computing facilitator

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Expertise

People with Interest

Dung Vu

California State University-San Bernardino

Programs

ACCESS CSSN

Roles

research computing facilitator, CIP

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Interests

Iman Rahbari

University of Southern California

Programs

Campus Champions, ACCESS CSSN

Roles

mentor, researcher/educator, research computing facilitator, research software engineer, cssn

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Interests

Robert Kudyba

Columbia University in the City of New York

Programs

Campus Champions

Roles

research computing facilitator

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Interests