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Quick Reference

This page collects ready-to-copy snippets you’ll can use on RCC and DSI. You can copy these directly and adjust as needed.

1. SSH config

Create or edit ~/.ssh/config on your local machine:

# RCC
Host midway3
    HostName midway3.rcc.uchicago.edu
    User YOUR_CNETID

# DSI
Host fe.ds*
  HostName fe01.ds.uchicago.edu
  IdentityFile PATH_TO_PRIVATE_KEY
  ForwardAgent yes
  User YOUR_CNETID

Host *.ds !fe.ds
  HostName %h.uchicago.edu
  IdentityFile PATH_TO_PRIVATE_KEY
  ForwardAgent yes
  User YOUR_CNETID
  ProxyJump fe.ds

Then you can use:

ssh midway3
rsync -av data/ midway3:/scratch/midways3/$USER/data/

2. Minimal interactive job (RCC)

srun --partition=general --nodes=1 --ntasks=1 --cpus-per-task=2 --mem=4G --time=01:00:00 --pty bash -i

Use this to:

3. Minimal GPU batch job

#!/bin/bash
#SBATCH --job-name=gpu
##SBATCH --account=<PI_ACCOUNT>    # <-- change to an allowed account on your cluster - RCC CLUSTER ONLY (uncomment if needed)
#SBATCH --partition=<PARTITION>    # <-- change to an allowed GPU partition on your cluster
#SBATCH --gres=gpu:1               # <-- change request 1 GPU (adjust as needed)
#SBATCH --nodes=1
#SBATCH --ntasks=1
#SBATCH --cpus-per-task=4
#SBATCH --mem=32G
#SBATCH --time=02:00:00
#SBATCH --output=/path/to/logs/%x_%j.out
#SBATCH --error=/path/to/logs/%x_%j.err

python gpu.py

4. Job array template (FAIL-only email)

#!/bin/bash
#SBATCH --job-name=array
##SBATCH --account=<PI_ACCOUNT>    # <-- change to an allowed account on your cluster; RCC CLUSTER ONLY (uncomment if needed)
#SBATCH --partition=<PARTITION>    # <-- change to an allowed GPU partition on your cluster
#SBATCH --nodes=1
#SBATCH --ntasks=1
#SBATCH --cpus-per-task=2
#SBATCH --mem=4G
#SBATCH --time=00:30:00
#SBATCH --array=0-9                # 10 tasks: indices 0..9
#SBATCH --output=/path/to/logs/%x_%A_%a.out
#SBATCH --error=/path/to/logs/%x_%A_%a.err

python array.py --index $SLURM_ARRAY_TASK_ID

5. Data transfer cheatsheet

rsync (preferred)

rsync -avz --progress local_dir/ midway3:/scratch/midways3/$USER/project/

scp (small files)

scp file.txt midway3:/home/$USER/

sftp (interactive)

sftp midway3:/home/$USER/

6. Monitor and manage jobs

# See your jobs
squeue -u $USER

# Get details on a job
scontrol show job <JOBID>

# Cancel a job
scancel <JOBID>

# Check job priority
sprio -u $USER

# Check job efficiency (after completion)
seff <JOBID>

7. Where to go next

User Guide
HPC User Guide
User Guide
Commands Cheatsheet