How to Cancel a Workflow

Stop a running workflow and terminate its jobs.

Cancel a Workflow

torc cancel <workflow_id>

This:

• Marks the workflow as canceled
• Stops claiming new jobs
• Sends SIGKILL to all running processes
• Sends scancel to all active or pending Slurm allocations

Check Cancellation Status

Verify the workflow was canceled:

torc status <workflow_id>

Or check completion status:

torc workflows is-complete <workflow_id>

Output:

Workflow 42 completion status:
  Is Complete: true
  Is Canceled: true

Restart After Cancellation

To resume a canceled workflow:

# Reinitialize to reset canceled jobs
torc workflows reinit <workflow_id>

# Run again locally
torc run <workflow_id>
# Or submit to scheduler
torc submit <workflow_id>

Jobs that completed before cancellation remain completed.

See Also

• Track Workflow Status — Monitor workflow progress
• Intelligent Restart — Rerun affected jobs after editing inputs
• Rerun Failed Jobs — Retry jobs that failed