BoF: Analyzing Parallel I/O
Abstract
Parallel I/O performance can be a critical bottleneck for applications, yet users are often ill-equipped for identifying and diagnosing I/O performance issues. Increasingly complex hierarchies of storage hardware and software deployed on many systems only compound this problem. Tools that can effectively capture, analyze, and tune I/O behavior for these systems empower users to realize performance gains for many applications.
In this BoF, we form a community around best practices in analyzing parallel I/O and cover recent advances to help address the problem presented above, drawing on the expertise of users, I/O researchers, and administrators in attendance.
The primary objectives of this BoF are to: 1) highlight recent advances in tools and techniques for monitoring I/O activity in data centers, 2) to discuss experiences and limitations of current approaches, 3) to discuss and derive a roadmap for future I/O tools with the goal to capture, assess, predict and optimize I/O.
The BoF is held in conjunction with the Supercomputing conference. The official announcement is listed here.
| Date | Tuesday, 16 November 2021 | ||
| Time | 5:15pm-6:45pm CST | ||
| Venue | Online, see the SC schedule for details |
The BoF is powered by the Virtual Institute for I/O and ESiWACE 1).
Organization
The BoF is organized by
- Shane Snyder (ANL, USA), ssnyder@mcs.anl.gov
- Julian Kunkel (Georg-August-Universität Göttingen/GWDG), julian.kunkel@gwdg.de
Agenda
We have a series of (8 minute) talks followed by a longer discussion:
- Welcome – Julian Kunkel, Shane Snyder
- Introduction – Shane Snyder
Slides - Darshan tracing visualizing – Jean Luca Bez
Slides - Experience with the NERSC all-flash system – Glenn Lockwood, Alberto Chiusole
Slides - Exploring more ways to use IO500 benchmark and IO500 list – Radita Liem
Slides - Determining I/O-Weather – Julian Kunkel
Slides - I/O Monitoring with PIKA – Sebastian Oeste
Slides - Panel and discussion – (moderated by Julian Kunkel)