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Longwood is the newest High-Performance Compute Cluster at HMS. It is located at the Massachusetts Green High Performance Computing Center.

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This provides a heterogeneous environment with both Intel (DGX) and ARM (Grace Hopper) architectures. Module management is supported through LMOD, allowing easy loading of software suites like the NVIDIA NeMo deep learning toolkit and more.

How to connect

Note

The cluster is currently only accessible via secure shell (ssh) command line from the HMS network:

  • HMS wired LAN

  • HMS Secure wireless network

  • HMS VPN

Two-factor authentication (DUO) is not required for logins because all connections must originate from an HMS network. Currently, the login server hostname is: login.dgx.rc.hms.harvard.edu

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  • /home

    • Max: 100GiB

  • /n/scratch

    • Created automaticallyIndividual scratch folders are created by HMS RC when making a new user account.

    • Max: 25TiB or 2.5 million files

    • Path: /n/scratch/users/<first_hms_id_char>/<hms_id>

  • /n/lw_groups

    • HMS-RC will be creating group folders in the futureShared folders for labs, created by request. Contact rchelp@hms.harvard.edu if interested.

Snapshots

.snapshot is a feature available on Longwood. This enables recovery of data accidentally deleted by users, daily:14 days and weekly: 60 days.

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