A Survey of MPI Usage in the U.S. Exascale Computing Project

Technical Report · Fri Jun 01 00:00:00 EDT 2018

DOI:https://doi.org/10.2172/1462877· OSTI ID:1462877

Bernholdt, David E. ^[1]; Boehm, Swen ^[1]; Bosilca, George ^[2]; Gorentla Venkata, Manjunath ^[1]; Grant, Ryan E. ^[3]; Naughton, III, Thomas J. ^[1]; Pritchard, Howard P. ^[4]; Schulz, Martin ^[5]; Vallee, Geoffroy R. ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Univ. of Tennessee, Knoxville, TN (United States)
3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Technical Univ. of Munich (Germany)

The Exascale Computing Project (ECP) is currently the primary effort in the United States focused on developing “exascale” levels of computing capability, including hardware, software and applications. In order to obtain a more thorough understanding of how the software projects under the ECP are using, and planning to use the Message Passing Interface (MPI), and help guide the work of our own project within the ECP, we created a survey. Of the 97 ECP projects active at the time the survey was distributed, we received 77 responses, 56 of which reported that their projects were using MPI. This paper reports the results of that survey for the benefit of the broader community of MPI developers.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1462877
• Report Number(s): ORNL/SPR-2018/790
• Country of Publication: United States
• Language: English