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Publications of Torsten Hoefler
Robert Gerstenberger, Maciej Besta, Torsten Hoefler:
| | | Enabling Highly-Scalable Remote Memory Access Programming with MPI-3 One Sided
(In Communications of the ACM, ACM, Oct. 2018)
Research Highlights
Abstract
Modern high-performance networks offer remote direct
memory access (RDMA) that exposes a process' virtual
address space to other processes in the network. The
Message Passing Interface (MPI) specification has recently
been extended with a programming interface called MPI-3
Remote Memory Access (MPI-3 RMA) for efficiently exploiting
state-of-the-art RDMA features. MPI-3 RMA enables a
powerful programming model that alleviates many message
passing downsides. In this work, we design and develop
bufferless protocols that demonstrate how to implement
this interface and support scaling to millions of cores with
negligible memory consumption while providing highest
performance and minimal overheads. To arm programmers,
we provide a spectrum of performance models for
RMA functions that enable rigorous mathematical analysis
of application performance and facilitate the development
of codes that solve given tasks within specified time
and energy budgets. We validate the usability of our library
and models with several application studies with up to half a
million processes. In a wider sense, our work illustrates how
to use RMA principles to accelerate computation- and dataintensive
codes.
Documentsdownload article: 
download slides:
| | | BibTeX | @article{cacm-rh-fompi,
author={Robert Gerstenberger and Maciej Besta and Torsten Hoefler},
title={{Enabling Highly-Scalable Remote Memory Access Programming with MPI-3 One Sided}},
year={2018},
month={Oct.},
booktitle={Communications of the ACM},
publisher={ACM},
source={http://www.unixer.de/~htor/publications/},
} |
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