Gain familiarity with dask

[tjcrone]

Dask is a flexible parallel computing library for analytic computing. Dask provides the special sauce that turns xarray in to a big data tool; it allows us to do computations on multidimensional arrays that are much bigger than what we can fit in memory, or that are distributed over many nodes of a cluster.

To get spun up on dask:

• Go through the dask lecture from Ryan's research computing class
• Skim the dask documentation
• Practice using dask and dask distributed cluster