SCHEDULE: NOV 16-21, 2014

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Scaling I/O Beyond 100,000 Cores Using ADIOS

SESSION: Scaling I/O Beyond 100,000 Cores Using ADIOS

EVENT TYPE: Tutorials

TIME: 1:30PM - 5:00PM

ROOM:392

ABSTRACT:

As concurrency and complexities continue to increase on high-end machines, in terms of both the number of cores and the level of storage hierarchy, managing I/O efficiently becomes more and more challenging. As we are moving forward, one of the major roadblocks to exascale is how to manipulate, write, read big datasets quickly and efficiently on high-end machines. In this tutorial we will demonstrate I/O practices and techniques that are crucial to achieve high performance on 100,000+ cores. Part I of this tutorial will introduce parallel I/O and the ADIOS framework to the audience. Specifically we will discus the concept of ADIOS I/O abstraction, the binary-packed file format, and I/O methods along with the benefits to applications. Since 1.4.1, ADIOS can operate on both files and data streams. Part II will include a session on how to write/read data, and how to use different I/O componentizations inside of ADIOS. Part III will show users how to take advantage of the ADIOS framework to do topology-aware data movement, compression and data staging/streaming using DIMES/FLEXPATH.

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