Takaya Uchida

> The Quasi-Adams-Bashforth time stepper requires the tendencies of the previous time step. So what happens here (if I am deducing from the warning and assuming that there is no...

``` > # control run > simulation1.stop_time = T > run!(simulation1) > > # checkpointed run > simulation2.stop_time = T/2 > run!(simulation2) > simulation2.stop_time = T > run!(simulation2, pickup=true) >...

> [@roxyboy](https://github.com/roxyboy), you shouldn't use a CFL-based timestepping with the default timestepper (AB2) because with a variable timestep AB2 is not valid, and the timestepping reduces to forward Euler, which...

> ``` > > # control run > > simulation1.stop_time = T > > run!(simulation1) > > > > # checkpointed run > > simulation2.stop_time = T/2 > > run!(simulation2)...

@jrbourbeau Thank you for your quick reply! Upon running `jupyter labextension list`, it seems that the dask-labextension is now installed as default for jupyterlab=4.0.2 ? ``` $ jupyter labextension list...

I think I'm getting a similar issue with the following errors showing up on Terminal: ``` [W 2023-02-25 22:10:57.992 ServerApp] wrote error: 'Cluster failed to start: Scheduler failed to start.'...

The issue may have to do with the [new version of Notebook](https://jupyter-notebook.readthedocs.io/en/latest/migrate_to_notebook7.html)..?