Release 2021.06.0

[jrbourbeau]

A couple of issues have been reported with the 2021.06.0 release (xref dask/dask#7731, rapidsai/dask-cuda#634) which both have fixes in the works. If there are no other blockers, I'd like to release tomorrow or Friday after the PRs which fix these issues (listed below) have been merged:

• Rename make_meta_util to make_meta dask#7743
• Blockwise: handle constant key inputs dask#7734 (this actually predates the 2021.06.0 release, but would be good to get out to users)
• Move SystemMonitor's GPU initialization back to constructor distributed#4866
• Ensure PyNVML works correctly when installed with no GPUs distributed#4873

cc @quasiben @jakirkham @jsignell

[jakirkham]

SGTM

It would be good if we can get some people to test some of these fixes (meta in particular). I don't think we were aware of this widespread usage. So it would be good to confirm we've gotten this right this time and aren't making it worse for people (even if that means moving a little slower potentially)

More generally it seems there may be different expectations of how meta should be or can be used. It might be worth coming up with intended usage and improving documentation and APIs as was done with Dask Custom Collections. This may need to be a separate issue/discussion though

[jrbourbeau]

Feedback from others would be great. I've reached out to most of the projects listed in dask/dask#7743 (comment) which were known to be impacted by the latest release. FWIW dask/dask#7743 should restore the same behavior (by default) for make_meta that we had prior to the 2021.06.0 release.

[rjzamora]

It would also be good to get the Blockwise fix in dask/dask#7721

[jrbourbeau]

Alright, all PRs mentioned in this issue have been merged. I'm going to start pushing out the release

[jrbourbeau]

Closing as 2021.06.0 is out, thanks all!

[jakirkham]

Thanks James! 😀