Going Parallel (part II: OpenMP, Advanced Slurm)

Thursday 27 Nov 2025, 09:30 → 15:30 Europe/Brussels

CYCL09B (Louvain-La-Neuve)

Going parallel is crucial to speed up your gain and to use the full power of HPC center. In this session, we will finish the MPI presentation and continue by presenting the share memory model (OpenMP).
Contents: Parallel programming with OpenMP Advanced SLURM submission	Prerequisite: Being able to use SSH with private keys  Being familiar with a text editor  Mastering the Linux command line and the GNU utilities (mkdir, cp, scp, etc.) Passive knowledge of C
	Type: Hands-on Target audience: Rookie programmer Must: This session is a must-have for anyone that want to develop and run large computation on HPC cluster.

1 Parallel programming with OpenMP

OpenMP is an easy alternative to pthreads for multithread computing. OpenMP extensions now exist in most C and Fortran compilers and allow flagging loops and other construct for efficient multithreading with little supplementary programming effort.
Contents: Parallel programming paradigms OpenMP Execution model Compiling an OpenMP program Data races Parallel loops Barriers and synchronisation	Prerequisite: Being able to use SSH with private keys  Being familiar with a text editor  Mastering the Linux command line and the GNU utilities (mkdir, cp, scp, etc.) Passive knowledge of C or Fortran
Type: Hands-on Target audience: Rookie programmer Must: This session is a must-have for anyone writing programs in C/C++ or Fortran

Speaker: Orian Louant (Université de Liège)

CECI-OpenMP-2024.pdf

2 Advanced SLURM job submission

This session follows the first Slurm session and teaches participants how to enhance submission scripts using concepts learned in the Workflows, Parallel computing, Bash scripting, and MPI sessions.

 

Contents: Scripting submissions  Arrays and Job packing  Heterogeneous jobs  Process placement	Prerequisite: Being able to use SSH with private keys  Being familiar with a text editor  Mastering the Linux command line and Bash scripting Working knowledge of Slurm
Type: Hands-on Target audience: Everyone Must: This session is useful.

Speaker: Damien François (UCLouvain/CISM)

slurm2024-2.pdf

slurm2024-3.pdf