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Run individual cells, all stale cells, or every cell in a notebook. Notebooks use a reactive execution model that determines execution order from variable dependencies rather than cell position.

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Run all stale cells

Run all stale cells without re-running cells that already use the latest code and inputs.
Click Run all stale cells () in the lower-right corner of the notebook.

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Rerun all cells

Rerun every cell in the notebook:
  1. Press Command+K on macOS or Control+K on Windows or Linux to open the command palette.
  2. Select Re-run all cells.

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Stop a running cell

Click Stop () in the cell’s toolbar to stop the running cell.

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Disable or enable a cell

Disable a cell to prevent both the cell and its dependencies from running.
  1. Press Esc to enter command mode.
  2. To open the command palette, press Command+P on macOS or Control+P on Windows.
  3. From the dropdown menu, select Disable execution.

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Restart the notebook runtime

Restart the runtime to clear the notebook’s variables and other in-memory state.
  1. Click the action ( ) menu in the upper-right corner of the notebook.
  2. From the dropdown menu, select Restart kernel.
For more information, see Disabling cells.