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O2 is a platform for Linux-based high performance computing at Harvard Medical School. The name is derived from being the next generation of the HMS "Orchestra" cluster, hence "O"2.

Getting Started with O2 and Slurm

O2 Jobs and the Slurm scheduler

Software and Programming on O2

General UNIX Information

Data Storage

Cluster Status


Our cluster status page has details of service outages and planned maintenance.

Two Factor Authentication:

All O2 cluster logins from outside of the HMS network require two-factor authentication. Please see:

Community Events

User Training

  • Classes are offered each semester to the HMS community to help you ramp up your research skills!
  • Please check the User Training page for courses, dates, and registration

Office Hours

Intermediate Slurm

Grants and Citation Information

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