Use p2p as default rechunk method
#31
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maawoo
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#31 implements `p2p` as default
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Further information/background:
dask/distributed#7507
https://discourse.pangeo.io/t/rechunking-large-data-at-constant-memory-in-dask-experimental/3266
Cluster memory usage can be lowered by quite a bit. The following example is the per-pixel median computation of S2 data with applied mask, which includes a rechunking step.
ds1is without p2p,ds2is with p2p: