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DTSTART;TZID=America/Chicago:20181111T083000
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UID:submissions.supercomputing.org_SC18_sess238_tut121@linklings.com
SUMMARY:Parallel-IO in Practice
DESCRIPTION:Robert Latham and Robert Ross (Argonne National Laboratory), B
 rent Welch (Google LLC), and Glenn Lockwood (Lawrence Berkeley National La
 boratory)\n\nI/O on HPC systems is a black art. This tutorial sheds light 
 on the state-of-the-art in parallel I/O and provides the knowledge necessa
 ry for attendees to best leverage I/O resources available to them. We cove
 r the entire I/O software stack including storage and parallel file system
 s at the lowest layer, the role of burst buffers (NVRAM), intermediate lay
 ers (such as MPI-IO), and high-level I/O libraries (such as HDF-5). We emp
 hasize ways to use these interfaces that result in high performance and to
 ols for generating insight into these stacks. Benchmarks on real systems a
 re used throughout to show real-world results.\n\nIn the first third of th
 e tutorial we cover the fundamentals of parallel I/O.  We discuss storage 
 technologies, both present and near-future.   Our parallel file systems ma
 terial covers general concepts and gives examples from Lustre, GPFS, PanFS
 , HDFS, Ceph, and Cloud Storage.\n\nOur second third takes a more applicat
 ion-oriented focus. We examine the upper library layers of the I/O stack, 
 covering MPI-IO, Parallel netCDF, and HDF5. We discuss interface features,
  show code examples, and describe how application calls translate into PFS
  operations.  \n\nFinally, we discuss tools for capturing and understandin
 g I/O behavior.\n\nTag: I/O, Tools\n\nRegistration Category: Tutorial Reg 
 Pass\n\n
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