[PVFS-users] PVFS on a 14 CPUs cluster

[Brian Haymore]

"Ibrahim Haddad (LMC)" wrote:
> 
> Hello all,
> 
> I have been testing with PVFS on a 7 CPUs cluster for a while
> and it went ok. Now I added 7 more processors to have a total
> of 14 processors. Things are not ok anymore.
> 
> The CPUs are diskless and they use NFS as a file space area.
> They get their IP via DHCP and download a ramdisk that is
> similar on all of them. When I had 7 processors only, I didnt
> get any problem. Now, with 14 processors, I am not able to
> access files within the PVFS file system from all CPUs. I
> am not able to copy from all CPUs...
> 
> I have 1 IO node. I had 3 but I minimized it to one while trying
> to figure out why it is behaving like that. And I have 1 management
> node.
> 
> Did anyone try out PVFS with a high number of clients (>=14)??
> 
> Thank you.
> 
> --
> Ibrahim Haddad
> Systems Research (/UU)
> 
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I currently have 4 IO nodes and 1 MGR Node and 170 Client Nodes
accessing the PVFS space without issues.
-- 
Brian D. Haymore
University of Utah
Center for High Performance Computing
155 South 1452 East RM 405
Salt Lake City, Ut 84112-0190

Email: brian@chpc.utah.edu - Phone: (801) 585-1755 - Fax: (801) 585-5366