[Lustre-discuss] Lustre MPI-IO performance on CNL

Weikuan Yu weikuan.yu at gmail.com
Wed Mar 5 10:12:44 PST 2008


Marty Barnaby wrote:
> My, perhaps, misunderstanding was that a Lustre FS had a maximum lfs 
> stripe-count of 160. Is this not a constant set  in the LFS, but just 
> some local configuration? Could you be more specific about the actual 
> lfs stripe-count of the file or files you wrote?

You're right on the maximal stripe-count, and 72 being local for my 
choice of the testing. The stripe count can have, but probably a little, 
for the relative comparisons between w/ or w/o direct I/O.

--Weikuan



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