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Add Per writer sharding support in MPI mode. #32

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rainwoodman opened this issue Oct 10, 2019 · 0 comments

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rainwoodman commented Oct 10, 2019

The MPI write function shall be refactor such that it can create one blob file per writer task and dedicate the blob file to that writer task.

We shall also switch the client code to do this by default -- most file system would support this sort of concurrent IO.

This also opens the door for adding on-the-fly data compression -- since we now can assert the data in the same blob file is written sequentially.

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