An evaluation of MPI message rate on hybrid-core processors

Journal Article · Sat Nov 01 00:00:00 EDT 2014 · International Journal of High Performance Computing Applications

DOI:https://doi.org/10.1177/1094342014552085· OSTI ID:1185011

Barrett, Brian W. ^[1]; Brightwell, Ron ^[1]; Grant, Ryan ^[1]; Hammond, Simon D. ^[2]; Hemmert, K. Scott ^[2]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Scalable System Software
2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Scalable Computer Architecture

Power and energy concerns are motivating chip manufacturers to consider future hybrid-core processor designs that may combine a small number of traditional cores optimized for single-thread performance with a large number of simpler cores optimized for throughput performance. This trend is likely to impact the way in which compute resources for network protocol processing functions are allocated and managed. In particular, the performance of MPI match processing is critical to achieving high message throughput. In this paper, we analyze the ability of simple and more complex cores to perform MPI matching operations for various scenarios in order to gain insight into how MPI implementations for future hybrid-core processors should be designed.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: AC04-94AL85000
• OSTI ID: 1185011
• Report Number(s): SAND-2014-20472J; 547795
• Journal Information: International Journal of High Performance Computing Applications, Vol. 28, Issue 4; ISSN 1094-3420
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING