Exploiting Thread Parallelism for Ocean Modeling on Cray XC Supercomputers

Conference · Sun May 01 00:00:00 EDT 2016

OSTI ID:1398401

Sarje, Abhinav ^[1]; Jacobsen, Douglas W. ^[2]; Williams, Samuel W. ^[1]; Ringler, Todd ^[2]; Oliker, Leonid ^[1]

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1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The incorporation of increasing core counts in modern processors used to build state-of-the-art supercomputers is driving application development towards exploitation of thread parallelism, in addition to distributed memory parallelism, with the goal of delivering efficient high-performance codes. In this work we describe the exploitation of threading and our experiences with it with respect to a real-world ocean modeling application code, MPAS-Ocean. We present detailed performance analysis and comparisons of various approaches and configurations for threading on the Cray XC series supercomputers.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1398401
• Resource Relation: Conference: Cray User Group Meeting 2016, London (United Kingdom), 8-12 May 2016
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING