pull_requests: 43724469

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id node_id number state locked title user body created_at updated_at closed_at merged_at merge_commit_sha assignee milestone draft head base author_association auto_merge repo url merged_by
43724469 MDExOlB1bGxSZXF1ZXN0NDM3MjQ0Njk= 555 closed 0 Use deterministic names for dask arrays from open_dataset 1217238 This will allow xray users to take advantage of dask's nascent support for caching intermediate results (https://github.com/blaze/dask/pull/502). For example: ``` In [1]: import xray In [2]: from dask.diagnostics.cache import Cache In [3]: c = Cache(5e7) In [4]: c.register() In [5]: ds = xray.open_mfdataset('/Users/shoyer/data/era-interim/2t/2014-*.nc', engine='scipy') In [6]: %time ds.sum().load() CPU times: user 2.72 s, sys: 2.7 s, total: 5.41 s Wall time: 3.85 s Out[6]: <xray.Dataset> Dimensions: () Coordinates: *empty* Data variables: t2m float64 5.338e+10 In [7]: %time ds.mean().load() CPU times: user 5.31 s, sys: 1.86 s, total: 7.17 s Wall time: 1.81 s Out[7]: <xray.Dataset> Dimensions: () Coordinates: *empty* Data variables: t2m float64 279.0 In [8]: %time ds.mean().load() CPU times: user 7.73 ms, sys: 2.73 ms, total: 10.5 ms Wall time: 8.45 ms Out[8]: <xray.Dataset> Dimensions: () Coordinates: *empty* Data variables: t2m float64 279.0 ``` Still needs docs (probably in the dask section) and a what's new item. Also, this will update the minimum required version of dask to 0.7 (which should be called out in docs). 2015-08-31T00:50:23Z 2015-10-21T07:05:47Z 2015-09-14T20:33:16Z 2015-09-14T20:33:16Z d09478227fa908ca8d3461275d5368d8eb1898cd   1307323 0 2ff6ccee78f95dfe8cf74c7820a1a8ea1a84ee5f f26b29a2809c4bb54dae781d995afc831b7c411f MEMBER   13221727 https://github.com/pydata/xarray/pull/555  

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