MPI-interoperable generalized active messages

Xin Zhao, Pavan Balaji, William D Gropp, Rajeev Thakur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Data-intensive applications have become increasingly important in recent years, yet traditional data movement approaches for scientific computation are not well suited for such applications. The Active Message (AM) model is an alternative communication paradigm that is better suited for such applications by allowing computation to be dynamically moved closer to data. Given the wide usage of MPI in scientific computing, enabling an MPI-interoperable AM paradigm would allow traditional applications to incrementally start utilizing AMs in portions of their applications, thus eliminating the programming effort of rewriting entire applications. In our previous work, we extended the MPI ACCUMULATE and MPI GET ACCUMULATE operations in the MPI standard to support AMs. However, the semantics of accumulate-style AMs are fundamentally restricted by the semantics of MPI ACCUMULATE and MPI GET ACCUMULATE, which were not designed to support the AM model. In this paper, we present a new generalized framework for MPI-interoperable AMs that can alleviate those restrictions, thus providing a richer semantics to accommodate a wide variety of application computational patterns. Together with a new API, we present a detailed description of the correctness semantics of this functionality and a reference implementation that demonstrates how various API choices affect the flexibility provided to the MPI implementation and consequently its performance.

Original languageEnglish (US)
Title of host publicationProceedings - 2013 19th IEEE International Conference on Parallel and Distributed Systems, ICPADS 2013
PublisherIEEE Computer Society
Pages200-207
Number of pages8
ISBN (Print)9781479920815
DOIs
StatePublished - Jan 1 2013
Event2013 19th IEEE International Conference on Parallel and Distributed Systems, ICPADS 2013 - Seoul, Korea, Republic of
Duration: Dec 15 2013Dec 18 2013

Publication series

NameProceedings of the International Conference on Parallel and Distributed Systems - ICPADS
ISSN (Print)1521-9097

Other

Other2013 19th IEEE International Conference on Parallel and Distributed Systems, ICPADS 2013
CountryKorea, Republic of
CitySeoul
Period12/15/1312/18/13

ASJC Scopus subject areas

  • Hardware and Architecture

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