[Lustre-discuss] Lustre and memory-mapped I/O

Andreas Dilger adilger at sun.com
Thu Jun 19 01:56:44 PDT 2008


On Jun 17, 2008  22:39 -0700, Huang, Eric wrote:
> Does Lustre support memory mapped I/O and direct I/O? 

Yes, it does support both of these.

> I am trying to run Nastran using Lustre but it always reported failure
> to create a directory. Since Nastran does a lot of memory mapped I/O, I
> was wondering if it was the cause. 

???  I'm not sure how mmap and direct I/O relate to creating a directory?

> I guess a good question to ask is that does Lustre support all POSIX
> file system operations?

Yes.

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.




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