Different workloads on HPC

The training focuses on different ways to allocate resources on supercomputers and parallelisation schemes used to speed up calculations.

Modern supercomputers are massive parallel machines with up to hundreds of cores on a single node and even thousands of nodes connected via fast network interface. To utilise those machines fully, one needs to know about parallelisation techniques and queuing system options of resource allocation. This training will show different ways that Slurm allocates resources and how to apply them to different computations and workloads.

Level

Target audience

Training is intended for users who have started running their own calculations and need to learn about different methods of allocating resources at ACC Cyfronet AGH. 

Agenda

1. Introduction: serial vs parallel,
2. Embarrassingly parallel (so parallel it's embarrassing!),
3. Intranode standards and you:
   • MPI,
   • OpenMP,
   • hybrid (MPI+OpenMP),
   • srun;
4. Going multinode,
5. Accelerating with a GPU card,
6. Even more different workloads:
   1. When HPC goes HTC (array jobs),
   2. Chaining calculations with job dependencies.

Requirements

We recommend doing this training after familiarizing with the contents of Running Calculations the HPC way training provided at ACC Cyfronet AGH. 

Technical prerequisites:

• PLGrid account at https://portal.plgrid.pl/;
• an active affiliation at https://portal.plgrid.pl/users/affiliations;
• access to Ares supercomputer,
  • if a participant has the access, no further action,
  • if not, one need to apply at https://portal.plgrid.pl/services/103 and the access will be granted when joining the team (see below),
  • participants are not required to have their own grant allocations;
• access to JupyterHubHPC, apply at https://portal.plgrid.pl/services/110;
• membership in the plggtraining team - the activation link will be sent after registration.

The above prerequisites are required to actively participate in the hands-on exercises.
In case of no active affiliation or PLGrid account, please contact the organisers at training@cyfronet.pl. 

Participants' computers should be equipped with software that allows SSH connections. On Windows, it is recommended to use Windows Terminal after checking if OpenSSH is installed. We advise against using Putty.

At 10:30 am on 23rd February 2026, a Dry-run will be held. Participants are invited to come to learn how to log in to Ares supercomputer before the training and resolve any problems with the Training Team.

Venue

The workshop will be conducted online on the Zoom platform. The meeting link will be sent to registered participants.

Language

English

Duration

3 hours

Registration

The Registration and the Waiting list close automatically after 17th February 2026. The Registration may close prematurely if the limit number of participants is hit beforehand, but the Waiting List will be available until the deadline above.