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Gwave (PSU)

Key information
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Login hosts

Hostname Description Memory CPU model cores/CPU total threads Production submit node 62GiB 2.90Hz Xeon Gold 6226R 16 16 Production submit node 62GiB 2 x 2.6GHz Xeon Gold 6126 16 16

For details on how to connect to these machines, please see Access to the LIGO Data Grid.

Execute hosts

Hostname Memory CPU model cores/CPU total threads
comp-ex-0{001-184} 192GiB 2 x 2.6GHz Xeon Gold 6126 12 48
comp-ex-0{187-218} 251GiB 2 x 3.0GHz AMD EPYC 7313 16 64
comp-cc-0{441-480} 251GiB 2 x 3.0GHz AMD EPYC 7313 16 64

Provided Services and Dashboards

Service URL
user webspace
cluster utilization dashboards
OSG jobs on GWave

User Information

Important Directories

  • /ligo/home/ regular files, analysis output, etc.
  • /ligo/home/ files viewable by LIGO-authtenticated users. See below for setting up file sharing
  • /cvmfs: CVMFS data files served from a local NFS Aliencache and remote Stashcaches


The installed software is minimal. To access LALSuite software, use a conda environment via CVMFS. For example:

   source /cvmfs/
   conda activate igwn

Data Access

Frame files are provided by CVMFS via repositories in the /cvmfs directory. To access proprietary data, you must first create an active proxy via ligo-proxy-init or a SciToken via htgettoken -v -a -i igwn. You must do this prior to sourcing environments or running analyses that require proprietary data.

Sharing LIGO Files

Files in your home directory may be shared by using the /ligo/home/ folder. To do this, you must set up permissions for both public_html and your home folder:

chmod 775 /ligo/home/
chmod 711 /ligo/home/

This allows your files to be viewable by LIGO-authenticated users at (replacing albert.einstein with your LIGO credentials).

Disk Quota

The default quota for users is 1TB.

Other Tips

SSH keys

To SSH to GWave without entering your password each time, copy your public SSH key using:

ssh-copy-id -i ~/.ssh/<>

You will be prompted for your password to copy the file. Afterwards, you will be able to SSH without re-entering your password.