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HPC Resources


We maintain and support four compute clusters, listed below. Please click on cluster names for more information. To download a Word document that describes our facilities, equipment, and other resources for HPC and research computing, click here.

Cluster Name Approx. Core Count Approx. Node Count Login Address Purpose
Grace 24,000 850 general and highly parallel, tightly coupled
Farnam 5,700 250 medical/life science
Milgram 2,400 80 HIPAA/sensitive data
Ruddle 3,200 200 Yale Center for Genome Analysis


We maintain several high performance storage systems which amount to about 12.5 PiB total. Listed below are these shared filesystems and the clusters where they are available. We distinguish where clusters store their home directories with an asterisk. The directory /home will always point to your home directory on the cluster you logged into. For more information about storage quotas and purchasing storage see the Cluster Storage page.

Filesystem Size Mounting Clusters
/gpfs/gibbs 4.1 PiB Grace, Farnam, Ruddle
/gpfs/loomis 2.6 PiB Grace*, Farnam
/gpfs/ysm 1.5 PiB Grace, Farnam*
/gpfs/slayman 1.0 PiB Grace, Farnam
/gpfs/milgram 1.1 PiB Milgram*
/gpfs/ycga 2.0 PiB Ruddle*

Last update: April 28, 2021