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All cluster logins from outside the HMS network require two-factor authentication. For more details, please reference Two Factor Authentication on O2 and Two Factor Authentication FAQ. Please contact us if you are having trouble with two-factor authentication on O2. 

Please do NOT send us or anyone else your password. Ever. We can assist you without knowing your password, and sharing accounts on the cluster is prohibited by Harvard security policy.

If you're having difficulty logging in to O2, make sure you're using your HMS account (in lowercase) and HMS account password to log in. If that does not resolve the problem, you can reset your HMS account password. Contact the HMS IT Service Desk (itservicedesk@hms.harvard.edu, or 617-432-2000) if you're unable to login to the HMS account management website. Your HMS account may have been locked due to too many failed login attempts to the O2 cluster. Once you are able to login to the HMS account management site, wait 1 hour and try logging in to O2 again. If you're still facing problems, then send in a ticket to us.

Files, Storage, Quotas

Where can I put my data?

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Use the --mem parameter in your job submission command with the amount of memory you want to request. See the Using Slurm Basic page for more information.

Problems with jobs

Why am I getting

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the following error “You have more than one Slurm account, must specify --account=NAME

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where NAME is a Slurm account name. Use sshare -U -u $USER to list your Slurm accounts associations” after submitting jobs

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to O2?

This is related to a new change on O2. For more information, check the question - How do I use the --account argument when submitting jobs?

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