FY20 ASC IC L2 Milestone 7180: Performance Portability of SIERRA Mechanics Applications to ATS-1 and ATS-2. Executive Summary

Technical Report · Tue Sep 01 00:00:00 EDT 2020

DOI:https://doi.org/10.2172/1660789· OSTI ID:1660789

Mosby, Matthew David ^[1]; Clausen, Jonathan ^[1]; Crane, Nathan K ^[1]; Drake, Richard R. ^[1]; Thomas, Jesse David ^[1]; Williams, Alan B. ^[1]; Pierson, Kendall H. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

The overall goal of this work was to accelerate simulations supporting the nuclear deterrence (ND) mission through improved performance of key algorithms in the ASC IC Sierra multi-physics application suite. This work focused on porting and optimizing algorithms for the graphics processing units (GPU) on the second ASC advanced technology system (ATS-2), while maintaining or improving performance on commodity technology systems (CTS) and ATS-1. Furthermore, these algorithmic developments used the ASC developed Kokkos performance portability abstraction library to maintain high performance across platforms using identical code, and enable sustainable reduced-cost migration and performance optimization to emerging hardware.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000; NA0003525
• OSTI ID: 1660789
• Report Number(s): SAND--2020-9297R; 690382
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION