NDLI: MPI-Interoperable Generalized Active Messages

Content Provider	IEEE Xplore Digital Library
Author	Xin Zhao Balaji, P. Gropp, W. Thakur, R.
Copyright Year	2013
Description	Author affiliation: Argonne Nat. Lab., Argonne, IL, USA (Balaji, P.; Thakur, R.) \|\| Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA (Xin Zhao; Gropp, W.)
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.
Sponsorship	IEEE Tech. Comm. Distrib. Process.
Starting Page	200
Ending Page	207
File Size	1540053
Page Count	8
File Format	PDF
ISBN	9781479920815
ISSN	15219097
DOI	10.1109/ICPADS.2013.38
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-15
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Semantics Concurrent computing Layout Message systems Computational modeling Data models Libraries
Content Type	Text
Resource Type	Article
Subject	Hardware and Architecture

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