ALICE-SHARK User Meeting 2026
Announcement
We are excited to announce that the ALICE-SHARK User Meeting 2026 will take place on Tuesday, 2 June 2026 from 10:00 - 14:00 in the Agora building room 5A.42.
Program is now available (see Schedule below)
If you are a user of the ALICE HPC cluster at Leiden University or the SHARK HPC cluster at the Leiden University Medical Center (or both), this meeting is for you. Our goal is to bring the user communities of both clusters together to connect with each other and the support teams of both clusters. The meeting is also of interest to users who are not yet actively using one of the two clusters.
The meeting will include an update about both clusters, a selection of talks from users and an interactive Q&A session with the support teams.
Attendance is possible in person and remotely. For in-person attendees, the meeting will be held in the Agora building room 5A.42 and lunch will be provided. For remote attendees, all sessions will be streamed live with the possibility to ask questions remotely (details will follow). However, we recommend the attendance of the meeting in-person because it will be easier to interact and connect with each other.
Registration for the meeting is mandatory. The number of people that can attend in-person is limited by the space of the room and will be filled on a first-come-first-serve basis.
Timeline
Registration open: 20 Mar 2026
Abstract Submission deadline: 4 May 2026 at 23:59 CEST
Deadline for registration: 31 May 2026 at 23:59 CEST.
Meeting: 02 Jun 2026, 10:00-14:00 CEST
Registration
If you want to register for the meeting, please use the following link: Registration Form
Schedule
The following table shows a tentative schedule for the meeting. User talks will be published after the abstract submission deadline has passed and the program has been finalized.
Start Time | End Time | Title | Speaker | Abstract |
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10:00 | 10:15 | Arrival Participants |
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10:15 | 10:20 | Welcome |
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10:20 | 10:40 | Overview/Update SHARK | SHARK Team |
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10:40 | 11:00 | Overview/Update ALICE | ALICE Team |
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11:00 | 11:05 | Handover speaker |
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11:05 | 11:20 | Social and Neurobiological Mechanisms of Risk and Resilience in Young People | E. Buimer (LEI) | Many young people experience adversity while growing up, such as bullying, neglect, or abuse, which increases the risk of mental health problems later in life. Yet, some remain resilient. Resilience refers to the ability to maintain or regain mental health and well-being despite these challenges. In the THRIVE study, we investigate why some individuals are more resilient than others. We follow young adults (18–24 years) over time and combine questionnaires, behavioral tasks, hormonal measures, and brain imaging to understand how social interactions, cognitive processes, and stress responses relate to mental health. For example, we study how individuals process emotions, learn from feedback, and respond to social stress. From a data perspective, this project involves integrating complex, multimodal, and longitudinal datasets. Imaging analyses are performed on the ALICE high-performance computing cluster, while other sensitive data (e.g., behavioral and clinical measures) are stored and processed in separate, secure environments. This setup reflects both computational demands and strict data governance requirements. The project also involves methodological challenges, such as reliably de-identifying anatomical MRI scans to prevent participant recognition while preserving data quality for analysis. By uncovering how social support and cognitive functioning contribute to resilience, the THRIVE study aims to inform interventions that strengthen mental health in young people. |
11:20 | 11:25 | Handover speaker |
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11:25 | 11:40 | Modelling Job Resources for Improved Scheduling | H. Rasche (LUMC) | Scheduling jobs is the core of how we interface with our clusters. But how do we schedule jobs optimally? How do we ensure we're not wasting resources unnecessarily? This talk will look at some prior art for optimising cluster scheduling as well as the author's recent work towards improving job runtime and memory requirement with linear models based on historical job performance data, in the context of WDL pipelines executed within Klinische Genetica. |
11:40 | 11:45 | Handover speaker |
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11:45 | 12:00 | Working with a lot of small images on ALICE: Practical Lessons | A. van de Pol (LEI) | I will describe image pipelines I ran on ALICE for a dissertation on colonial Korean print
The hardest questions were not about input rates but about storage. Do we keep raw image After training, the pipelines run YOLO, fine-tuned DINOv3, and the MIL model over the I will close with a few small best practices I have picked up along the way. |
12:00 | 12:45 | Lunch |
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12:45 | 13:00 | slurm-board: A pre-release tool for monitoring Slurm & configuring Slurm jobs using interactive, real-time resource insights | V. van der Sluis (LUMC) | In this talk, we introduce slurm-board, an interactive dashboard designed to simplify the configuration, monitoring and submitting of Slurm jobs. Users often find it difficult to configure a job due to complex settings and limited knowledge of available resources, resulting in inefficient cluster usage and longer queue times. Slurm-board addresses these issues by providing a user-friendly SBATCH-generator that allows users to easily configure jobs. Combined with real-time resource availability information, it enables users to efficiently configure their jobs |
13:00 | 13:05 | Handover speaker |
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13:05 | 13:50 | Q&A with ALICE - SHARK Team | ALICE & SHARK Teams |
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13:50 | 13:55 | Closing |
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