sponsored byACMIEEE The International Conference for High Performance 
Computing, Networking, Storage and Analysis
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SCHEDULE: NOV 15-20, 2015

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Advanced MPI Programming

SESSION: Advanced MPI Programming

EVENT TYPE: Tutorials

EVENT TAG(S): Programming Systems

TIME: 8:30AM - 5:00PM

Presenter(s):Pavan Balaji, William Gropp, Torsten Hoefler, Rajeev Thakur

ROOM:18B

ABSTRACT:

The vast majority of production parallel scientific applications today use MPI and run successfully on the largest systems in the world. For example, several MPI applications are running at full scale on the Sequoia system (on ~1.6 million cores) and achieving 12 to 14 petaflops/s of sustained performance (60 to 70% of peak). At the same time, the MPI standard itself is evolving to address the needs and challenges of future extreme-scale platforms as well as applications. This tutorial will cover several advanced features of MPI, including new MPI-3 features, that can help users program modern systems effectively. Using code examples based on scenarios found in real applications, we will cover several topics including efficient ways of doing 2D and 3D stencil computation, derived datatypes, one-sided communication, hybrid (MPI + shared memory) programming, topologies and topology mapping, and neighborhood and nonblocking collectives. Attendees will leave the tutorial with an understanding of how to use these advanced features of MPI and guidelines on how they might perform on different platforms and architectures.

Chair/Presenter Details:

Pavan Balaji - Argonne National Laboratory

William Gropp - University of Illinois at Urbana-Champaign

Torsten Hoefler - ETH Zurich

Rajeev Thakur - Argonne National Laboratory

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