ARC-TS is pleased to announce the addition of compute resources in the standard, large memory, and GPU partitions, new V100 GPUs (graphics processing units), and increased Slurm root account limits for Armis2 effective May 20, 2020 at 5:00 PM.
Additional Compute Capability to be added
ARC-TS will be adding 93 standard compute nodes, 4 large memory nodes, and 3 new GPU nodes (each with 4 NVIDIA K40x GPUs). These nodes are the same hardware type as the existing Armis2 nodes. We plan on migrating the new hardware on May 20, 2020.
New GPUs added
ARC-TS has added five nodes, each with three V100 GPUs for faster service to the GPU partition. These are the same types of GPU nodes that are in the Great Lakes HPC cluster. Learn more about the V100 GPU.
What do I need to do?
You can access the new GPUs by submitting your jobs to the Armis2 gpu partition. Refer to the Armis2 user guide, section 1.2 Getting started, Part 5 “Submit a job” or contact hpc-support@umich.edu to get help or if you have questions.
Slurm default resource limits increased
ARC-TS will be raising the default Slurm resource limits (set at the per-PI/project root account level) to give each researcher up to 33% of the resources in the standard partition, and 25% of the resources in the largemem and gpu partitions, to better serve your research needs. This will happen on May 20, 2020.
What do I need to do?
Review, enable, or modify limits on your Armis2 Slurm accounts. Because of the higher cpu limit, your researchers will be able to run more jobs, which could generate a larger bill. Contact hpc-support@umich.edu if you would like to modify or add any limits.
What is a Slurm root account?
A per-principal investigator (PI) or per-project root account contains one or more Slurm sub-accounts, each with their own users, limits, and shortcode(s). The entire root account has limits for overall cluster and /scratch usage in addition to any limits put on the sub-accounts.
What is the new Slurm root account limit?
Each PI’s or project’s collection of Slurm accounts will be increased to 1,032 cores and 5,160GB of memory, and 10 GPUs, effective May 20, 2020. The Slurm root account level limit is currently set to 90 cores. We will document all of the updated limits, including large memory and GPU limits, on the Armis2 website when they go into effect.
Resources
How do I get help?
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Contact hpc-support@umich.edu to get help or if you have questions.
