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MareNostrum ONA (Quantum)

IMPORTANT

Please be aware that accounts are designated for personal and non-transferable use. If the project requires access from someone else or an increase in allocated resources, the project manager is responsible for making such requests.

Logging in​

You can connect to the Quantum cluster (MareNostrum Ona) using the public login nodes. All connections must be done through SSH (Secure SHell), for example:

mylaptop$> ssh {username}@qlogin1.bsc.es

Public login nodes​

MareNostrum Ona:​
qlogin1.bsc.es
qlogin2.bsc.es
Storage 5:​
transfer1.bsc.es
transfer2.bsc.es
transfer3.bsc.es
transfer4.bsc.es

Accessing from/to the outside​

The login nodes are the only nodes accessible from external networks, and no connections from the cluster to the outside world are permitted for security reasons.

IMPORTANT

All file transfers from/to the outside must be executed from your local machine and not within the cluster.

Examples​

  • Copying files or directories from MareNostrum Ona to an external machine:

    mylaptop$> scp -r {username}@transfer1.bsc.es:"Quantum_SOURCE_dir" "mylaptop_DEST_dir"

  • Copying files or directories from an external machine to MareNostrum Ona:

    mylaptop$> scp -r "mylaptop_SOURCE_dir" {username}@transfer1.bsc.es:"Quantum_SOURCE_dir"

Password change​

IMPORTANT

For security reasons, you must change the first password.

To change the password:

  1. Log in to the transfer1 machine (use the same username and password as in the cluster):

    mylaptop$> ssh {username}@transfer1.bsc.es

  2. Run the passwd command and set a new password:

    transfer1$> passwd

  3. The new password should become effective about 5 minutes after the change.