40th VI-HPS Tuning Workshop (LRZ, Garching, Germany) - Online
Date
Monday 14th - Friday 18th June 2021
Location
The workshop will be held online, using the Zoom videoconference platform.
Organising Institutions
Goals
This workshop organised by VI-HPS and LRZ as a PRACE training event will:
- give an overview of the VI-HPS programming tools suite
- explain the functionality of individual tools, and how to use them effectively
- offer hands-on experience and expert assistance using the tools
On completion participants should be familiar with common performance analysis and diagnosis techniques and how they can be employed in practice (on a range of HPC systems). Those who prepared their own application test cases will have been coached in the tuning of their measurement and analysis, and provided optimization suggestions.
Programme Overview
Presentations and hands-on sessions are planned on the following topics:
- Setting up, welcome and introduction
- Callgrind cache utilisation analysis
- mpiP lightweight MPI profiling
- TAU performance system
- MAQAO performance analysis & optimisation
- Score-P instrumentation and measurement
- Scalasca automated trace analysis
- Paraver/Extrae/Dimemas trace analysis and performance prediction
- Extra-P automated performance modeling
- ... and potentially others to be added
A brief overview of the capabilities of these and associated tools is provided in the VI-HPS Tools Guide.
The workshop will be held in English and run from 09:00 to not later than 18:00 each day, with breaks.
Participants are encouraged to prepare their own MPI, OpenMP and hybrid MPI+OpenMP parallel application codes for analysis.
Programme in Detail (provisional) - all times given as CEST (UTC+2)
| Day 1: | Monday 14 June | |
| 09:00 | Welcome [Volker Weinberg, LRZ]
|
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| 10:30 | (break) | |
| 11:00 | Preparation of participants' own codes on IvyMUC. | |
| 12:30 | (lunch) | |
| 14:00 | Callgrind/kCachegrind cache utilisation analysis [Josef Weidendorfer, LRZ]
|
|
| 15:30 | (break) | |
| 16:00 | Hands-on coaching to apply Callgrind/kCachegrind to analyze participants' own code(s). | |
| 17:30 | Schedule for remainder of workshop | |
| 18:00 | (adjourn) | |
| Day 2: | Tuesday 15 June | |
| 09:00 | MAQAO performance analysis framework [Jäsper Ibnamar & Emmanuel Oseret, UVSQ] | |
| 10:30 | (break) | |
| 11:00 | BSC performance tools [Judit Giménez & Lau Mercadal, BSC] | |
| 12:30 | (lunch) | |
| 14:00 | Hands-on coaching to apply MAQAO to analyze participants' own code(s). | |
| 15:30 | (break) | |
| 16:00 | Hands-on coaching to apply Paraver to analyze participants' own code(s). | |
| 17:30 | Schedule for remainder of workshop | |
| 18:00 | (adjourn) | |
| Day 3: | Wednesday 16 June | |
| 09:00 | Score-P instrumentation & measurement toolset [Michael Knobloch , JSC & Radita Liem, RWTH]
|
|
| 10:30 | (break) | |
| 11:00 | Score-P specialized instrumentation and measurement [Michael Knobloch, JSC]
|
|
| 12:30 | (lunch) | |
| 14:00 | Hands-on coaching to apply Score-P/CUBE to analyze participants' own code(s). | |
| 15:30 | (break) | |
| 16:00 | TAU performance system [Sameer Shende, UOregon] | |
| 17:30 | Review of day and schedule for remainder of workshop | |
| 18:00 | (adjourn) | |
| Day 4: | Thursday 17 June | |
| 09:00 | Scalasca automated trace analysis [Michael Knobloch, JSC]
|
|
| 10:30 | (break) | |
| 11:00 | Extra-P automated performance modeling [Marcus Ritter, TUDarmstadt]
|
|
| 12:30 | (lunch) | |
| 14:00 | Hands-on coaching to apply Scalasca to analyze participants' own code(s). | |
| 15:30 | (break) | |
| 16:00 | Hands-on coaching to apply TAU to analyze participants' own code(s). | |
| 17:30 | Review of day and schedule for remainder of workshop | |
| 18:00 | (adjourn) | |
| Day 5: | Friday 18 June | |
| 09:00 | mpiP lightweight MPI profiling [Martin Schulz, LRZ]
|
|
| 10:30 | Review [Cédric Valensi, UVSQ] Wrapup [Volker Weinberg, LRZ] |
|
| 10:45 | (break) | |
| 11:00 | Hands-on coaching to apply tools to analyze participants' own code(s). | |
| 12:30 | (lunch) | |
| 14:00 | Hands-on coaching to apply tools to analyze participants' own code(s). | |
| 16:00 | (adjourn) |
Hardware and Software Platforms
IvyMUC
- 8-way Ivy Bridge-based Linux Cluster
- FDR14 Infiniband interconnect
- 31 nodes, 16 cores per node
- 64 GB DDR Memory per node
- Operating System: SUSE Linux Enterprise Server (SLES) 12 SP5
- Compilers: Intel icc, icpc, ifort 19.0
- Intel MPI
The local HPC system IvyMUC is the primary platform for the workshop and will be used for the hands-on exercises. Course accounts will be provided during the workshop to participants without existing accounts. Other systems where up-to-date versions of the tools are installed can also be used when preferred, though support may be limited and participants are expected to already possess user accounts on non-local systems. Regardless of whichever external systems they intend to use, participants should be familiar with the relevant procedures for compiling and running their parallel applications (via batch queues where appropriate).
Registration
Register via the course website.
Contact
Tuning Workshop SeriesUniversité de Versailles Saint-Quentin-en-Yvelines Email: cedric.valensi[at]uvsq.fr |
Local ArrangementsLeibniz Supercomputing Centre Email: educatio[at]lrz.de |
Sponsors
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This workshop is a PRACE training centre (PTC) event, organised by VI-HPS & LRZ for the Gauss Centre for Supercomputing. |
