RCC Cluster

Primary documentation: https://docs.rcc.uchicago.edu

Common pitfalls (worth reading early): https://docs.rcc.uchicago.edu/101/mistakes/

Accounts¶

Reference: https://docs.rcc.uchicago.edu/101/accounts/

• Request a general RCC account

• Associate the account with a PI. For access to the Schmidt nodes, use pi-dfreedman

Connecting¶

Reference: https://docs.rcc.uchicago.edu/101/connecting/

• SSH: https://docs.rcc.uchicago.edu/ssh/main/

• Open OnDemand: https://docs.rcc.uchicago.edu/open_ondemand/open_ondemand/

• VS Code: https://docs.rcc.uchicago.edu/software/apps-and-envs/scode/main/

Software¶

• Software catalog: https://docs.rcc.uchicago.edu/software/

• Compilers: https://docs.rcc.uchicago.edu/software/compilers/

Storage¶

Docs: https://docs.rcc.uchicago.edu/storage/main/

• Home: /home/$USER (~30 GB)

  • Configuration + small scripts

  • Private and cluster-specific

• Scratch: /scratch/midways3/$USER (~100 GB)

  • Temporary job data and active processing

• Node-local scratch, found at these environment variables: $TMPDIR / $SLURM_TMPDIR

  • Typically /tmp/jobs/${SLURM_JOB_ID}

  • Deleted when the job ends — copy results out

• Check quota:

  quota -u $USER

Copying data

• scp / sftp

• rsync

• Samba

• Globus (recommended for large data)

• See: Data Transfer tools and tutorials

Running jobs¶

Key points:

• Login nodes are for editing and submitting jobs, not compute

• Jobs on compute nodes generally do not have internet access

• Common Schmidt partition: schmidt-gpu

• Max wall time is often 36 hours (longer by request)

• Partitions: https://docs.rcc.uchicago.edu/partitions/

• Containers (Singularity): https://docs.rcc.uchicago.edu/software/apps-and-envs/singularity/

Allocations¶

Reference: https://rcc.uchicago.edu/accounts-allocations/request-allocation

Allocations cover:

• Service Units (compute)

• Storage

Support¶

• Walk-in Lab (Regenstein): Monday–Friday, 9am–5pm

• Phone: 773-702-3374

• Email: info@rcc.uchicago.edu