Use Zarr library directly as a parallel write sink. #60
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Looks like MCDS.open doesn't like the outputs of these (fails on obs_dim lookup with a KeyError) so...bear with me i guess. |
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This eliminates the full readback of the zarr chunks that was done to merge the outputs of the parallel _write_single_zarr block and is saving me a significant amount of time on large datasets.
Specifically, a 60 cell test dataset that was taking several hours in the zarr merge phase completed in 5 minutes. No I/O limited copy step.