SC'13 tutorial: Hands-on Practical Hybrid Parallel Application Performance Engineering (Denver, CO, USA)

Date

Sunday 17th November 2013

Presenters

Markus Geimer, Jülich Supercomputing Centre
Sameer Shende, University of Oregon
Bert Wesarg, Technische Universität Dresden
Brian Wylie, Jülich Supercomputing Centre

Location

The tutorial takes place as part of the SC'13 conference in room 301 of the Colorado Convention Center, Denver, CO, USA. In preparation for the hands-on exercises, participants are encouraged to download the latest VI-HPS Linux ISO for execution within VirtualBox on their notebook computer.

Abtract

This tutorial presents state-of-the-art performance tools for leading-edge HPC systems founded on the Score-P community instrumentation and measurement infrastructure, demonstrating how they can be used for performance engineering of effective scientific applications based on standard MPI, OpenMP, hybrid MPI+OpenMP, and increasingly common usage of accelerators. Parallel performance evaluation tools from the VI-HPS (Virtual Institute High Productivity Supercomputing) are introduced and featured in hands-on exercises with Scalasca, Vampir and TAU. We present the complete workflow of performance engineering, including instrumentation, measurement (profiling and tracing, timing and PAPI hardware counters), data storage, analysis, and visualization. Emphasis is placed on how tools are used in combination for identifying performance problems and investigating optimization alternatives. Using their own notebook computers with a provided Linux Live-ISO image containing the tools (booted from DVD/USB or within a virtual machine) will help to prepare participants to locate and diagnose performance bottlenecks in their own parallel programs.

Programme

08:30	Introduction Introduction to VI-HPS & parallel application engineering VI-HPS Linux Live-ISO and MPI+OpenMP example Instrumentation & measurement of applications with Score-P
10:00	(break)
10:30	Profiling Profile examination with CUBE Configuration & customization of Score-P measurements Specialized Score-P measurements & analyses
12:00	(lunch)
13:30	Tracing Automated trace analysis with Scalasca Interactive trace analysis with Vampir
15:00	(break)
15:30	Further steps Profile examination with TAU ParaProf Performance data management & mining with TAU PerfExplorer Finding typical parallel performance bottlenecks Review & conclusion
17:00	(adjourn)

Registration

Registration via the SC'13 conference website (or on-site) is possible with or without including the conference technical program, exhibition and workshops.

Contact

Brian Wylie
Jülich Supercomputing Centre
Phone: +49 2461 61-6589
Email: b.wylie@fz-juelich.de