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titleSoftware & Applications

The Maxwell-Cluster is a

resources

resource dedicated to parallel and multi-threaded application, which can use at least some of the specific characteristics. In addition to serving as a medium scale High-Performance-Cluster, Maxwell incorporates resources for Photon Science data analysis, resources of CFEL, CSSB, Petra4

and

, the European XFEL.

If you find the resource useful for your work, we would greatly appreciate to learn about publications, which have been substantially benefiting from the Maxwell-Cluster

.

Drop us a mail at maxwell

.

service@desy.de - or if you'd like a larger audience, feel free to send it to maxwell-user@desy.de. Acknowledgement of the maxwell-resource would also be greatly appreciated. It'll help to foster the cluster.

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The Maxwell-Cluster is composed of a core partition (maxwell) , partitions with specific capabilities like GPUs, and groups and group specific partitions. The core partition is continuously growing and with currently 55 nodes, 2792 cores and 14TB of memory the largest resources. Like the IT-HPC cluster, Maxwell is All compute nodes are however available for everyone entitled to use the Maxwell cluster!

The Maxwell-Cluster is primarily intended for parallel computation making best use of the multi-core architectures, the infiniband low-latency network, fast storage and available memory. The cluster is hence not suited for single-core computations or embarrassingly parallel jobs like Monte-Carlo productions. Use BIRD, Grid or your groups workgroup server (WGS) for this kind of tasks.  

The entire cluster will be managed with SLURMis managed by SLURM scheduler (with some notable exceptions). The SLURM scheduler on the core partition will essentially work works on a "who comes first" basis, but using a "back-fill algorithm" (smaller jobs filling the gaps without delaying other jobs will be executed prior to scheduled big jobs). The group specific partitions however have slightly different rules: though everyone can run jobs on group specific nodes, members of the group will have a higher priority and will compete non-group jobs off the partition. See Groups and Partitions on Maxwell for details.

  • The Maxwell-Cluster is in many respects different from other resources. Please consult with the Using Maxwell page(s) for details. 
  • If you are familiar with the batch farm BIRD you might find the SLURM Rosetta table translating between different batch systems helpful. 
  • To get started, please have a look at the Getting Started page!
  • The Maxwell Hardware page provides a list of currently available nodes & configurations. 

 

 

Gliffy Diagram
  • The Maxwell Partitions page provides a quick overview of the nodes, capacities, features and limits of the individual partitions.

  • Read the documentation! It should cover at least the essentials. If you come across incorrect or outdated information: please let us know!


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titleAcknowledgments and References

If you find the resource useful for your work, we would greatly appreciate to learn about publications, which have been substantially benefiting from the Maxwell-Cluster. Drop us a mail at maxwell.service@desy.de. Acknowledgement of the maxwell-resource would also be greatly appreciated. It'll help to foster the cluster, for example: "This research was supported in part through the Maxwell computational resources operated at Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany"

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titleContact

For any questions, problems, suggestions please contact our ticket system: maxwell.service@desy.de

All Announcements will be sent via maxwell-user@desy.de.Maxwell-Users Users with the maxwell-resource are automatically subscribed. Non-Maxwell users (e.g. CFEL-wgs users) can self-subscribe

We strongly recommend that all maxwell-users without maxwell-resource self-subscribe even if you are using exclusively group-specific resources.

Subscribe: https://lists.desy.de/sympa/info/maxwell-user