14-18 June 2021
ONLINE
Europe/Berlin timezone

LRZ  PRACE  VI-HPS-new-small

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
  • 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
  • [k]cachegrind cache utilisation analysis
  • ... 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]
  • Introduction to Zoom
  • The IvyMUC system
  • Introduction to VI-HPS & overview of tools [Valensi]
  • Introduction to parallel performance engineering
  • Building and running NPB/BT-MZ on IvyMUC [Knobloch]
10:30 (break)
11:00

Preparation of participants' own codes on IvyMUC

12:30 (lunch)

14:00

kCachegrind cache utilisation analysis [Josef Weidendorfer, LRZ]

15:30 (break)
16:00 Hands-on coaching to apply kCachegrind to analyze participants' own code(s).
17:30 Review of day and schedule for remainder of workshop
18:00 (adjourn)
 
Day 2: Tuesday 15 June
09:00 MAQAO performance analysis tools [Jäsper Ibnamar & Emmanuel Oseret, UVSQ]
  • MAQAO hands-on exercises (MAQAO quick reference)
10:30 (break)
11:00 BSC performance tools [Judit Giménez & Lau Mercadal, BSC]
  • Tools installation
  • BSC tools hands-on exercises
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 [Brian Wylie, Michael Knobloch & Radita Liem, JSC]
  • Score-P analysis scoring & measurement filtering
  • Score-P hands-on exercises
  • CUBE profile explorer hands-on exercises
10:30 (break)
11:00 Score-P specialized instrumentation and measurement [Brian Wylie, Michael Knobloch & Radita Liem, JSC]
  • Score-P hands-on exercises
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]
  • TAU hands-on exercises
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 [Brian Wylie, JSC]
  • Scalasca hands-on exercises
10:30 (break)  
11:00 Extra-P automated performance modeling [Marcus Ritter, TUDarmstadt]
  • Extra-P hands-on exercises
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, TUM/LRZ]
  • mpiP hands-on exercises
10:30 Review of the workshop [Cédric Valensi, UVSQ]
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).

Contact

Tuning Workshop Series

Cédric Valensi
Université de Versailles Saint-Quentin-en-Yvelines
Email: cedric.valensi[at]uvsq.fr
   

Local Arrangements

Volker Weinberg
Leibniz Supercomputing Centre
Email: educatio[at]lrz.de

Sponsors

PRACE This workshop is a PRACE training event, organised by LRZ and VI-HPS for the Gauss Centre for Supercomputing.
Starts
Ends
Europe/Berlin
ONLINE
LRZ

Prerequisites:

Basic MPI and OpenMP knowledge as presented in the LRZ course "Parallel programming of High Performance Systems".
Language: English
Location: The course will be offered online via ZOOM.
Registration: https://events.prace-ri.eu/event/1207/registrations/880/
VI-HPS Page: https://www.vi-hps.org/training/tws/tw40.html

Prices and Eligibility:

 

The course is open and free of charge for people from academia and industry.

 

Surveys
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