Hi Weikuan,
Thanks for sending the ADIO driver! I look forward
to testying it out.
Thanks again!
Phil
On Mon, 16 Jul 2007, Weikuan Yu wrote:
Hi,
I have cleaned up quite a lot on the ADIO driver posted earlier. Attached is
a cleaner patch for mpich2-1.0.5p4. It is also available here:
http://ft.ornl.gov/projects/io/src/adio-lustre-mpich2-v02.patch
Some highlights for the new patch.
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o Removal of asynchronous IO piece as it appears outdated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
Todo: (near term)
o Test/enable striping hints over Cray XT
o Enable the async IO
o Enable preallocation
Disclaimer:
o you are welcome to try the code, but at your own risk.
We look forward your interests and contributions such as testing results, bug
reports, and new feature patches. We appreciate any courtesy reference of
this work. A little ad on this joint effort, you may direct your inquiries to
CFS on this list or folks listed on another website here:
http://ft.ornl.gov/projects/io/
Andreas and Wangdi: please feel free to post it on CFS sites.
Thanks,
--Weikuan
Future Technologies Group & Technology Integration
Oak Ridge National Laboratory
Andreas Dilger wrote:
On Jul 09, 2007 13:46 -0400, Phil Dickens wrote:
I am trying to find information about the performance
of ROMIO (the MPI-IO implementation developed at Argonne
National Laboratories) on the Lustre file system. Is
ROMIO widely used on Lustre, or are there proprietary
implementations of MPI-IO that are used? Does anyone have
information on the performance of ROMIO on Lustre?
There is a Lustre ADIO driver currently under development. A driver
for an older version of MPICH is available in the lustre/contrib
directory of the sources. I'll let the involved parties (Weikuan Yu
and Wang Di) give you the full details.
Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.
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