Wombat is a single rack cluster from HPE based on the 64-bit ARM architecture instead of traditional x86-based architecture. This system is available to support computer science research projects aimed at exploring the ARM architecture. Appropriate research topics could include, but are not limited to, functionality testing of research software and prototypes, power-efficiency evaluations, and efforts to improve the system software, runtime support and the programming environment for ARM architecture based systems.

The Wombat cluster has 16 compute nodes, four of which have two NVIDIA GPU accelerators attached (eight GPU’s total in the system). Each compute node has two (pre-production) 28-core Cavium ThunderX2 processors (Cavium is now Marvell), 256 GB RAM (16 DDR4 DIMM’s) and a 480 GB SSD for node-local storage. Nodes are connected with EDR InfiniBand (~100Gbit/s).

To access Wombat, users must apply for an OLCF account. (See the link below.)  Once an account has been created, users can log in to Wombat by ssh’ing to wombat-login1.ccs.ornl.gov.

When filling out the “Project Information” section of the account application, enter “Ross Miller” as the PI, CSC266 as the project name and select “Requesting New Membership” under project membership status. Please choose either bash or csh for your preferred shell. Fill out the rest of the form appropriately and click the “Submit” button. (Don’t forget to check the “Accurate and Complete” checkbox at the bottom before submitting.)

Account applications are available here: Account Application.

Please note that all published work related to Wombat should include the following acknowledgement statement:

This research used the resources of the Oak Ridge Leadership Computing Facility, located in the National Center for Computational Sciences at the Oak Ridge National Laboratory, which is managed by UT Battelle, LLC for the U.S. Department of Energy, under the contract No. DEAC05-00OR22725.