Upcoming soon:
o Hierarchical striping as described in the paper from CCGrid2007
http://ft.ornl.gov/projects/io/pubs/CCGrid-2007-file-joining.pdf
Further out:
o To post the code for ParColl (Partitioned collective IO)
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V05:
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Improved data redistribution
o Improve I/O pattern identification. Besides checking interleaving,
if request I/O size is small, collective I/O will be performed.
The hint bigsize can be used to define the req size value.
o Provide hint CO for load balancing to control the number of
IO clients for each OST
o Produce stripe-contiguous I/O pattern that Lustre prefers
o Control read-modify-write in data sieving in collective IO
by hint ds_in_coll.
o Reduce extent lock conflicts by make each OST accessed by one or
more constant clients.
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V04:
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o Direct IO and Lockless IO support
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V03:
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o Correct detection of fs_type when lustre: prefix is not given
o Further fix on stripe alignment
o Tested/Enabled striping hints over Cray XT (Catamount and CNL)
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V02:
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The Lustre ADIO driver has been cleaned up quite a lot. Compared
to the intital posting, here are the changes:
o Removal of dead/redundant code
o Removal of asynchronous IO piece as it appears outdated
o Bug fixes for setting Lustre Hints
o Bug fixes for data sieving
o Improved Setsize operation with one process calling ftruncate
o Improved collective IO with domain partitioning on
Lustre stripe boundary
Contributing:
o You may contribute via many different ways, such as
testing results, bug reports, and new feature patches.
o We appreciate any courtesy reference of this work.
o Disclaimer: you are welcome to try the code, but at your own risk.
Contact info:
For more info, visit http://ft.ornl.gov/projects/io/
