Ohio Supercomputer Center (OSC) expands Pitzer Cluster, migrates to Slurm

The Ohio Supercomputer Center (OSC), which is one of 91±¬ĮĻ Advanced Research Computing (ARC)ā€™s high performance computing partners, has recently expanded their Pitzer Cluster. In September 2020, OSC installed an additional 398 IntelĀ® XeonĀ® ā€˜Cascade Lakeā€™ processor-based nodes as part of an expansion cluster and reached full production status on Tuesday, September 22, 2020.

This expansion approximately triples the peak capacity of the original Pitzer cluster (which includes 260 IntelĀ® XeonĀ® ā€˜Skylakeā€™ processor-based nodes), adding 3.8 petaflops. Below is a summary of the hardware information:

• 340Ā ā€œdense computeā€ nodes (48 cores, 192GB RAM)
• 42 Dual GPU nodes (48 cores, 384GB RAM, 2 V100 32GB GPUs)
• 4 Quad GPUĀ nodes (48 cores, 768GB RAM, 4 V100 32GB GPUs)
• 12 large memory nodesĀ (48 cores, 768GB RAM)

In addition, OSC switched to SlurmĀ for job scheduling and resource management on Pitzer, replacing the Torque/Moab environment. OSC also enabled a PBS compatibility layerĀ in order to make the transition as smooth as possible.Ā For more information on the migration, you can visitĀ . Those who are already or have interest to utilize OSC services through 91±¬ĮĻ ARC can contact Kevin Wentworth (kevin.wentworth@maine.edu)Ā with any questions.