About this website

This website has several purposes:

• For news updates about the cluster and the other systems
• As a source of information for new users of OMNI, who want to know how to obtain access to the cluster and how to get started once they have access.
• As a source of information for advanced users of OMNI, when they need information about the installed application software and the installed programming languages, libraries and development tools or system information about the cluster.
• As a source of information for users who would like to try out the other systems or would like to know more about them.
• As a collection of documentation and best practices.

Systems

OMNI Cluster

The OMNI cluster is the central computing resource and the largest of our systems by far. The cluster is used for example for computations in the fields of computational fluid dynamics, finite-element methods and chemical simulations. However, it is also designed with applications from many other fields (e.g. Big Data applications like Tensorflow and Pytorch) in mind. The OMNI cluster consists of 439 regular compute nodes with 64 cores and 256 GB RAM each, as well as a multitude of other nodes for special purposes, including GPU nodes. Around 500 TB of total disk storage is available and the peak performance is roughly 1044 TFlops. The installed operating system is Rocky Linux. You can find more detailed system information here.

Other systems

ZIMT currently makes available the following other systems:

• NEC SX Aurora Tsubasa (Vector system)

These systems are particularly suited for testing the corresponding processor architectures. If you want to know whether your software might profit from running on one of these systems, please contact us.

Contact

The cluster is operated by the HPC support team of ZIMT. If you have questions, problems or would like software to be installed on the cluster, you can reach us at: hpc-support@uni-siegen.de or visit us in our weekly consultation hour. All cluster users are also added to a mailing-list automatically which is used for news updates.