Virtual Institute — High Productivity Supercomputing

36th VI-HPS Tuning Workshop (CINECA, Italy)


Wednesday 30th September - Friday 2nd October 2020


This workshop will be held online, using the Microsoft Teams platform.

Organising Institution



This workshop organised by VI-HPS and CINECA 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

Programme Overview

Presentations and hands-on sessions are planned on the following topics:

  • Setting up, welcome and introduction
  • TAU performance system
  • Score-P instrumentation and measurement
  • Scalasca automated trace analysis
  • Vampir interactive trace analysis
  • Likwid performance tool suite
  • ... 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.


The recordings of the sessions are available on the CINECA website (login as Guest).

Programme in Detail (provisional)- all times given as CEST (UTC+2)

Day 1: Wednesday 30 September
09:00 Welcome [Cédric Valensi, UVSQ]
MARCONI100 computer system and software environment [Fabio Affinito, CINECA]
Introduction to VI-HPS & overview of tools [Cédric Valensi, UVSQ]
  • Introduction to parallel performance engineering
  • Building and running TeaLeaf_CUDA on MARCONI100 [Brian Wylie, JSC]
    Building and running NPB/BT-MZ on MARCONI100 [Christian Feld, JSC]
    10:30 (break)
    11:00 Likwid performance tool suite [Thomas Gruber, FAU]
  • Likwid hands-on exercises
  • 12:30 (lunch)
    14:00 Hands-on coaching to apply Likwid to analyze codes.
    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 2: Thursday 01 October
    09:00 Score-P instrumentation & measurement toolset [Christian Feld, JSC]
  • Score-P hands-on exercises
  • CUBE profile explorer hands-on exercises [Brian Wylie, JSC]
  • 10:30 (break)
    11:00 Score-P measurement extension, scoring & filtering  [Christian Feld, JSC]
  • Score-P specialized instrumentation and measurement
  • 12:30 (lunch)
    14:00 Hands-on coaching to apply Score-P/CUBE to analyze codes.
    15:30 (break)
    16:00 Hands-on coaching to apply TAU to analyze codes.
    17:30 Review of day and schedule for remainder of workshop
    18:00 (adjourn)

    Day 3: Friday 02 October
    09:00 Scalasca automated trace analysis [Markus Geimer, JSC]
  • Scalasca hands-on exercises
  • Vampir interactive trace analysis [Holger Brunst, TUDresden]
  • Vampir hands-on exercises
  • 10:30 (break
    11:00 Hands-on coaching to apply Scalasca/Vampir to analyze codes.
    Review of the workshop
    12:30 (lunch)
    14:00 Hands-on coaching to apply tools to analyze participants' own code(s).
    16:00 (adjourn)

    Hardware and Software Platforms

    MARCONI100: IBM Power9 Linux modular cluster system:

    • 2x16 cores IBM POWER9 AC922 at 3.1 GHz with 256 GB/node of RAM memory
    • 4 x NVIDIA Volta V100 GPUs per node, Nvlink 2.0, 16GB

    The local HPC system MARCONI100 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).


    Register via the CINECA website.


    Tuning Workshop Series

    Cédric Valensi
    Université de Versailles Saint-Quentin-en-Yvelines
    Phone: +33 1 77 57 59 36
    Email: cedric.valensi[at]

    Local Arrangements

    Email: corsi.hpc[at]