Cluster Docs

start

zzzznana (zzzznana@undisclosed.example.com) — 2026-09-15T17:06:16+00:00

LUIS HPC Cluster Documentation ---------- This document is meant to facilitate your work with the cluster system of Leibniz University Hannover. Please take some time to read through this document. If you think you have absolutely no time, read at least

apptainer

zzzznana (zzzznana@undisclosed.example.com) — 2026-09-15T17:03:17+00:00

Using Apptainer on the Cluster (replaces Singularity) ---------- Apptainer will replace Singularity on the the LUH-Clusters. Currently you can use both commands apptainer and singularity because the last one is a symlink to apptainer. This may change in the future.

modules_and_application_software

zzzznana (zzzznana@undisclosed.example.com) — 2026-09-15T16:33:48+00:00

Modules & Application Software ---------- The number of software packages that are installed together with the operating system on cluster nodes is kept light on purpose. Additional packages and applications are provided by a module system, which enables you to easily customise your working environment on the cluster. This module system is called Lmod

cluster_faq

zzzznana (zzzznana@undisclosed.example.com) — 2026-09-15T12:02:43+00:00

FAQ: Frequently asked questions ---------- Formal issues I forgot my password! → Go to your project management (usually that's the people of your own institute) who will help you with that. We can not and will not reset your password, that is entirely the project management's responsibility.

liggghts - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-09-03T08:15:09+00:00

LIGGGHTS LIGGGHTS stands for “LAMMPS Improved for General Granular and Granular Heat Transfer Simulations”. It is an open-source Discrete Element Method (DEM) particle simulation software used for modeling granular material behaviors. The software deployed on this cluster is compiled directly from the official baseline repository hosted at

slurm_usage_guide - [GPU jobs on the cluster]

zzzznana (zzzznana@undisclosed.example.com) — 2026-09-01T07:50:27+00:00

SLURM usage guide ---------- If you are completely new to scientific computing, read this: Please keep in mind that simply throwing a serial program without provisions for parallelization at the cluster will not make it run faster. In fact, it will often run SLOWER, since cpu cores on machines specialized in scientific computing usually run at lower clock frequencies than workstation cpus.

cloud_storage_rclone

zzzzkaps (zzzzkaps@undisclosed.example.com) — 2026-08-31T08:25:27+00:00

Transferring files from/to cloud storage ---------- This document walks through some of the basics of using the command line program Rclone allowing to synchronize files between the cluster (compute and login nodes) and external cloud storage systems. Rclone has a rich set of features and can be used with many different cloud systems including Dropbox, ownCloud, Google Drive, etc. However, here we will consider

luhki-hpc_ood_dark_3.png - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-08-10T14:11:48+00:00

jhub_available_courses.png

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-21T19:30:04+00:00

jhub_available_courses_select_course.png

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-21T19:30:04+00:00

jhub_job_queue.png

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-21T19:30:04+00:00

jhub_home.png

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-21T19:24:29+00:00

luhki-hpc_ood_dark_2.png

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-21T19:21:56+00:00

luhki-hpc_docs_light_2.png

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-21T17:37:25+00:00

luhki-hpc_ood_dark_1.png - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-18T17:18:16+00:00

luhki-hpc_docs_light_1.png - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-18T17:07:21+00:00

luhki-hpc_docs_light.png - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-18T17:03:44+00:00

luhki-hpc_ood_dark.png - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-18T09:04:07+00:00

luhki-hpc_dokuwiki_light.png - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-18T08:59:01+00:00

luhki-hpc_ood_dark.png - created

zzzznana (zzzznana@undisclosed.example.com) — 2026-06-18T08:54:46+00:00