Gwave (PSU)¶

Key information
Home page
Account sign-up	See Requesting an account on the LDG page
Support	iask@ics.psu.edu

This service is available for all @LIGO.ORG registered collaboration members with accounts and access coordinated as part of the LIGO Data Grid.

Servers¶

Hostname	Description	Memory	CPU model	# core
`ligo0{1,2}.gwave.ics.psu.edu`	Production submit nodes	192GB	2 x 2.6GHz Xeon Gold 6126	12
`comp-ex-0{001-184}`	Production compute nodes	192GB	2 x 2.6GHz Xeon Gold 6126	12

Additional services¶

Service	URL
user webspace	https://ldas-jobs.gwave.ics.psu.edu/~albert.einstein/
disk usage map	https://foreman01.ext.gwave.ics.psu.edu/diskusage/

Additional Information¶

Important Directories¶

/ligo/home/ligo.org/albert.einstein: for normal user files, analysis output, etc.
/ligo/software/ligo.org/albert.einstein: for software builds
/cvmfs: CVMFS data files served from a local NFS Aliencache and remote Stashcaches

Building Software¶

When compiling software, use the /ligo/software/ directory instead of the /ligo/home/ directory.

Conda Environments

By default, user conda environments are stored in /ligo/home/, so this must be changed via:

ENV_DIR='conda-envs'    # this is the folder name where you want to keep your environments
mkdir -p /ligo/software/ligo.org/${USER}/${ENV_DIR}
conda config --add envs_dirs /ligo/software/ligo.org/${USER}/${ENV_DIR}

Use conda activate to load environments as usual. Verify your setup with conda info --env; output should be similar to this:

$ conda info --env
# conda environments:
#
test-env             *  /ligo/software/ligo.org/albert.einstein/<conda-envs>/envs/test-env

To shorten the long path that prefixes the terminal prompt, enter:

conda config --set env_prompt '({name})'

After building software or moving environments to the /ligo/software directory, reference that path in your HTCondor submit and DAG files in place of your /ligo/home directory.