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  • Very slow coordinate assignment with dask array · 3 ✖

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id html_url issue_url node_id user created_at updated_at ▲ author_association body reactions performed_via_github_app issue
567585193 https://github.com/pydata/xarray/issues/2867#issuecomment-567585193 https://api.github.com/repos/pydata/xarray/issues/2867 MDEyOklzc3VlQ29tbWVudDU2NzU4NTE5Mw== dcherian 2448579 2019-12-19T17:28:09Z 2019-12-19T17:28:09Z MEMBER

Great! thanks for checking.

 
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   Very slow coordinate assignment with dask array 429511994
566637811 https://github.com/pydata/xarray/issues/2867#issuecomment-566637811 https://api.github.com/repos/pydata/xarray/issues/2867 MDEyOklzc3VlQ29tbWVudDU2NjYzNzgxMQ== dcherian 2448579 2019-12-17T16:23:23Z 2019-12-17T16:23:23Z MEMBER

It may be. It would be good to check if you have the time.

 
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   Very slow coordinate assignment with dask array 429511994
480640557 https://github.com/pydata/xarray/issues/2867#issuecomment-480640557 https://api.github.com/repos/pydata/xarray/issues/2867 MDEyOklzc3VlQ29tbWVudDQ4MDY0MDU1Nw== shoyer 1217238 2019-04-07T23:17:43Z 2019-04-07T23:17:43Z MEMBER

But I suspect that something triggers the computation of the array, when assigning a coordinate.

This sounds correct to me.

I'm a little surprised about a significant performance between these two ways of adding coordinates. The implementation of these methods does differ slightly, but they should be pretty similar.

 
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   Very slow coordinate assignment with dask array 429511994

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