Claude Transcript¶

This page captures a Claude CLI session that walks through creating a simple Python script, submitting it as a Slurm job, monitoring the run, and gathering the output.

Environment Notes¶

Session ran inside /users/user1 with workspace-write sandboxing and restricted network access.
Prior to running this, a Clause API license was acquired through the Claude web interface.
An API key was generated on the Claude web site and added tothe file ~/.claude/settings.json file

To running claude, you will need to srun into a compute node, load the "node" module, and run the "claude" command. .

[user1@jhpce01 ~]$ srun --pty --x11 bash
[user1@compute-107 ~]$ module load node
[user1@compute-107 ~]$ claude
╭─── Claude Code v2.1.150 ─────────────────────────────────────────────────────╮
│                                                    │ Tips for getting        │
│                Welcome back Marcus!                │ started                 │
│                                                    │ Run /init to create a … │
│                       ▐▛███▜▌                      │ Note: You have launche… │
│                      ▝▜█████▛▘                     │ ─────────────────────── │
│                        ▘▘ ▝▝                       │ What's new              │
│                                                    │ Bug fixes and reliabil… │
│    Opus 4.7 (1M context) · API Usage Billing ·     │ Bug fixes and reliabil… │
│    Marcus‘s Individual Org                         │ Added `fallbackModel` … │
│                  /users/user1                      │ /release-notes for more │
╰──────────────────────────────────────────────────────────────────────────────╯
>

Below is an example of using claude to create a simple program and submit it as a job on the JHPCE cluster.

❯ please make a directory called claude-demo                                    

● Bash(mkdir /users/user1/claude-demo)
  ⎿  Done

● Created /users/user1/claude-demo.

✻ Brewed for 5s

❯ cd claude-demo                                                                

● Bash(cd /users/user1/claude-demo && pwd)
  ⎿  /users/user1/claude-demo

● Now in /users/user1/claude-demo.

✻ Brewed for 4s

❯ create a python script called count.py that prints the numbers from 1 to 10.  

● Write(count.py)
  ⎿  Wrote 2 lines to count.py
      1 for i in range(1, 11):
      2     print(i)

● Created count.py.

✻ Baked for 6s

❯ submit count.py as a slurm job                                                

● Bash(which sbatch && sinfo 2>/dev/null | head -20)
  ⎿  /usr/bin/sbatch
     PARTITION          AVAIL  TIMELIMIT  NODES  STATE NODELIST
     cluster-is-jhpce    down 90-00:00:0      1   idle compute-100
     … +18 lines (ctrl+o to expand)

● Write(count.sbatch)
  ⎿  Wrote 10 lines to count.sbatch
       1 #!/bin/bash
       2 #SBATCH --job-name=count
       3 #SBATCH --partition=shared
       4 #SBATCH --time=00:05:00
       5 #SBATCH --mem=1G
       6 #SBATCH --cpus-per-task=1
       7 #SBATCH --output=count_%j.out
       8 #SBATCH --error=count_%j.err
       9 
      10 python count.py                                     

● Bash(sbatch count.sbatch)
  ⎿  Submitted batch job 32459003

● Submitted job 32459003 to the shared partition. Output will land in
  count_32459003.out once it runs.

✻ Crunched for 13s

❯ show me the result of the job                                                 

  Read 1 file (ctrl+o to expand)

● Job output:

  1
  2  
  3
  4
  5
  6
  7
  8
  9
  10

✻ Brewed for 5s

※ recap: You created a claude-demo directory with count.py (prints 1-10) and 
  submitted it as a SLURM job, which completed successfully. Next: decide what 
  to do with the demo, or move on to another task. (disable recaps in /config)