LUMI_template

LUMI system researcher meeting

Sigma2 conducted a reseacher meeting about the EuroHPC LUMI system.

  • About

    About LUMI system researcher meeting

    The EuroHPC LUMI system, in which Sigma2 holds a share of the computing capacity, is expected to enter production early 2021. Although this system will contain a large number of CPU nodes, it will be dominated by GPU nodes. For this reason, substantial funding will be available for porting and adapting large highly parallel research applications to the system.

    With 2021 not being far away, we have started preparations and conducted a researcher (user) workshop with computing projects that have potential for using the LUMI system. This workshop was held by invitation, and due to the on-going pandemic, was a two-day virtual event.

    Who were the target groups?

    The meeting aimed to assemble key project managers, software specialists from the projects and from the operations organization, together with invited external experts. Researchers from academia, contract research organizations and industry were assumed to participate. The purpose was to identify possible target applications for LUMI, and to get insight into needed software engineering efforts in preparing the applications.

  • Program
    09:00
    -
    09:15
    Gunnar Bøe, UNINETT Sigma2
    Introduction to the meeting
    09:15
    -
    10:15
    Axel Köhler, NVIDIA GmbH
    Porting scientific applications to GPU
    10:15
    -
    10:30
    Break
    10:30
    -
    11:25
    Jaro Hokkanen, FZ Jülich
    Accelerated hydrologic modelling: ParFlow GPU implementation
    11:25
    -
    11:35
    Break
    11:35
    -
    12:00
    Gunnar Bøe, UNINETT Sigma2
    Information about LUMI
    09:00
    -
    09:15
    Jenny Andrea Amundsen, UNINETT Sigma2
    Summary of day 1
    09:15
    -
    09:50
    Marcin Krotkiewski, University of Oslo
    GHEX: Generic Halo Exchange for Exascale
    09:50
    -
    10:00
    Break
    10:00
    -
    10:20
    Mikolaj Szydlarski, University of Oslo
    Experiences from porting to GPU at the Rosseland group
    10:20
    -
    10:30
    Break
    10:30
    -
    11:50
    Jenny Andrea Amundsen, UNINETT Sigma2
    Breakout room group work
    • 0:10 Introduction
    • 0:30 Group work. Please address the following questions:
      • What do you view as your greatest challenges in order to start using GPUs?
      • How can/or should Sigma2 Metacenter contribute to our best possible use of advanced resources such as the LUMI GPU nodes (software development, optimization/scaling/profiling, arranging workshops, training, specialised user support, …)?
      • One question or challenge for further discussion
    • 0:10 Break
    • 0:30 Joint room presentation [3 mins/group]
      • The most important points from the discussion in each group
      • One question or challenge for further discussion
    11:50
    -
    12:00
    Break
    12:00
    -
    12:10
    Jenny Andrea Amundsen, UNINETT Sigma2
    GPU services in the current Norwegian e-infrastructure
    12:10
    -
    12:30
    Gunnar Bøe, UNINETT Sigma2
    Advanced user Support (AUS) related to GPUs, national EuroHPC Competence Centre
    12:30
    -
    12:45
    Summary and conclusion of the meeting - invite to feedback
    • Brief info about future plans
    • Contact points for follow up

About LUMI system researcher meeting

The EuroHPC LUMI system, in which Sigma2 holds a share of the computing capacity, is expected to enter production early 2021. Although this system will contain a large number of CPU nodes, it will be dominated by GPU nodes. For this reason, substantial funding will be available for porting and adapting large highly parallel research applications to the system.

With 2021 not being far away, we have started preparations and conducted a researcher (user) workshop with computing projects that have potential for using the LUMI system. This workshop was held by invitation, and due to the on-going pandemic, was a two-day virtual event.

Who were the target groups?

The meeting aimed to assemble key project managers, software specialists from the projects and from the operations organization, together with invited external experts. Researchers from academia, contract research organizations and industry were assumed to participate. The purpose was to identify possible target applications for LUMI, and to get insight into needed software engineering efforts in preparing the applications.

09:00
-
09:15
Gunnar Bøe, UNINETT Sigma2
Introduction to the meeting
09:15
-
10:15
Axel Köhler, NVIDIA GmbH
Porting scientific applications to GPU
10:15
-
10:30
Break
10:30
-
11:25
Jaro Hokkanen, FZ Jülich
Accelerated hydrologic modelling: ParFlow GPU implementation
11:25
-
11:35
Break
11:35
-
12:00
Gunnar Bøe, UNINETT Sigma2
Information about LUMI
09:00
-
09:15
Jenny Andrea Amundsen, UNINETT Sigma2
Summary of day 1
09:15
-
09:50
Marcin Krotkiewski, University of Oslo
GHEX: Generic Halo Exchange for Exascale
09:50
-
10:00
Break
10:00
-
10:20
Mikolaj Szydlarski, University of Oslo
Experiences from porting to GPU at the Rosseland group
10:20
-
10:30
Break
10:30
-
11:50
Jenny Andrea Amundsen, UNINETT Sigma2
Breakout room group work
  • 0:10 Introduction
  • 0:30 Group work. Please address the following questions:
    • What do you view as your greatest challenges in order to start using GPUs?
    • How can/or should Sigma2 Metacenter contribute to our best possible use of advanced resources such as the LUMI GPU nodes (software development, optimization/scaling/profiling, arranging workshops, training, specialised user support, …)?
    • One question or challenge for further discussion
  • 0:10 Break
  • 0:30 Joint room presentation [3 mins/group]
    • The most important points from the discussion in each group
    • One question or challenge for further discussion
11:50
-
12:00
Break
12:00
-
12:10
Jenny Andrea Amundsen, UNINETT Sigma2
GPU services in the current Norwegian e-infrastructure
12:10
-
12:30
Gunnar Bøe, UNINETT Sigma2
Advanced user Support (AUS) related to GPUs, national EuroHPC Competence Centre
12:30
-
12:45
Summary and conclusion of the meeting - invite to feedback
  • Brief info about future plans
  • Contact points for follow up