ARC-TS HPC Timeline

Flux Armis Great Lakes Lighthouse Armis2 Beta

First Flux nodes are purchased and put into production

February 19, 2010

The initial 16 nodes for the Flux pilot were purchased and installed.  These were 8-core Nehalem boxes with 48GB of memory.

Read more

Great Lakes Installation Begins

October 1, 2018

Dell, Mellanox, and DDN will be delivering and installing the hardware to deliver the new Great Lakes service.  These teams will be working along side the…

Read more

Beta HPC cluster available

October 2, 2018

The Beta HPC cluster was introduced to enable HPC users to begin migrating their Torque job scripts to Slurm and test their workflows on a Slurm-based…

Read more

Great Lakes Beta (GLB) created

November 1, 2018

Great Lakes Beta is installed for HPC support staff to build and test software packages on the same hardware in Great Lakes.

Read more

Beta Cluster testing continues

January 8, 2019

If you are a current HPC user on Flux or Armis and have not used Slurm before, we highly recommend you login and test your…

Read more

Globus Available for Lighthouse

March 1, 2019

Globus will be available on Lighthouse, enabling users to migrate data from other Globus endpoints and clusters, including Flux.  This service will be upgraded in…

Read more

Lighthouse HPC cluster available for testing

March 7, 2019

The Lighthouse cluster is available for testing.  We will have 2 test nodes and a test account for FOE users to submit jobs during this…

Read more

HPC OnDemand Available for Beta

March 8, 2019

The replacement for ARC Connect, called HPC OnDemand, will be available for users.  This will allow users to submit jobs via the web rather than…

Read more

HPC OnDemand Available for Lighthouse

March 12, 2019

The replacement for ARC Connect, called HPC OnDemand, will be available for users.  This will allow users to submit jobs via the web rather than…

Read more

Lighthouse HPC cluster available

March 18, 2019

The Lighthouse cluster is available.  The login hosts will be available to update home directories and see the new environment.  The software and module environments…

Read more

Great Lakes primary installation complete and ARC-TS begins loading and configuration

May 30, 2019

The Great Lakes installation is primarily complete other than waiting for final HDR firmware testing for the new InfiniBand system.  The current InfiniBand system is…

Read more

Great lakes firmware updates complete

July 8, 2019

This date is a rough estimate.  Great Lakes, as of June, is running a GA-candidate HDR-100 InfiniBand firmware.   We will schedule an update to the…

Read more

Great Lakes Open for Early User Testing

July 15, 2019

We will be looking for sets of friendly users who will be able to test different aspects of the system to submit their workloads to…

Read more

2019 Summer Maintenance

August 12, 2019

The ARC-TS annual summer maintenance will begin.   The details, services impacted,  and length of the maintenance will be determined when we get closer to the date. …

Read more

Great Lakes Early User Testing Ends

August 14, 2019

The Great Lakes early user period for testing will end. Great Lakes will transition into production and users will be able to submit work as…

Read more

Great Lakes Open for General Availability

August 19, 2019

Assuming all initial testing is successful, we expect that Great Lakes will become available for University users after the ARC-TS summer maintenance.

Read more

Armis2 HPC service available

September 24, 2019

Armis2 HPC service is available. Users with accounts on Armis will be able to log into Armis2 login nodes and submit jobs.  The software and…

Read more

Armis users must migrate to Armis2

November 23, 2019

Armis will be shutting down during the ARC-TS summer maintenance and all hardware will be migrated to Armis2. All users need to be migrated to…

Read more

All FOE nodes must be migrated to Lighthouse

November 25, 2019

All FOE nodes must be migrated to the Lighthouse cluster.

Read more

Great Lakes Migration Complete

November 25, 2019

All HPC accounts, users, and workflows must be migrated to either Great Lakes (Standard, GPU, Large-Memory, and On-demand Flux) or Lighthouse (Flux Operating Environment nodes)…

Read more

Beta Retires

November 29, 2019

Beta will be retired after both Flux and Armis have been retired, as the purpose of Beta is to assist users to transition to the…

Read more

If you have questions, please send email to