basic Dask_jupyerlab extension demo¶

You may have, if not working, to re-run;

jupyter serverextension enable dask_labextension

Step 1: launch a Client¶

warning; Dask-Jupyterlab doesn't work for Python-3.9.1, even with Distributed-2020.12.0
check here for progress on the issue: https://github.com/dask/distributed/issues/4168)

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from dask.distributed import Client
import multiprocessing.popen_spawn_win32
client = Client()
client

click on the DASK Extension (the red pictures) on the left left pannel
copy the Dashoard url (in blue in the cell above this one) in the DASK DASHBOARD URL ot the Dask Extension panel that appears
click on the refresh circualr arrow on the left of the bottom CLUSTERS line of the Dask Extension panel
.... this make the buttons of the DASK extension to go from GREY to ORANGE
.....clicking on each of them open a dedicated pan with related information: for example "GRAPH"
..... with jupyterlan you can show it side-to-side with current notebook by moving tabs

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import dask.array as da

x = da.random.random(((20000 , 20000)), chunks="16 Mib")
x

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y = (x + x.T) - x.mean(axis=0)
y.sum().compute()

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