Hi Christina,
If you want to do IO caching, you can set the immutable attribute (as
root) on your files, and those files will cached on the client by the
VFS. This is really the only client-side IO caching capability built
into PVFS, and once you set that attribute, you can't modify those
files.
If you're interested in IO caching research with PVFS, Avery Ching's
recent paper is probably a good start:
http://cholera.ece.northwestern.edu/~aching/research_webpage/publications/2007sc_2.pdf
-sam
On Feb 11, 2008, at 3:08 PM, Christina Patrick wrote:
Hi Everybody,
I have searched the PVFS2 forums before and found one article that
said that PVFS2 does not do any client side caching
http://www.beowulf-underground.org/pipermail/pvfs2-users/2005-November/000992.html
I want to ask the everybody:
1. What are the types of caching employed in PVFS2?
2. What are the caching policies in PVFS2?
3. If I want to investigate further into this, where should I look
(documentation/files/papers)?
4. Also, how can I explicitly enable and disable caching in PVFS2?
I would really appreciate if somebody could patiently answer these
questions.
Thanks,
Christina.
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