[Pvfs2-users] Question about behavior of locking (or lack of it) in PVFS2

[Craig Tierney]

I know that PVFS2 does not support locking and understand the
benefits of this design.  However, I have a question about what
happens to file writes for contiguous, non-overlapping writes.

Lets say I have N clients, each writing M bytes.  The offset
for each write is n*m.  However, what if m*n is does not
fall on either a page or block boundary?  Two processes are
going to want to touch the same page in memory (or on disk).
Although the byte ranges are different, is this behavior
defined?

Thanks,
Craig

-- 
Craig Tierney (craig.tierney at noaa.gov)