[Beowulf] PVFS or NFS in a Beowulf cluster?
reuti at staff.uni-marburg.de
Mon Jan 17 13:40:51 PST 2005
I don't see a contradiction to use both: NFS for the home directories (on some
sort of master node with an attached hardware RAID), PVFS2 for a shared scratch
space (in case the applications need a shared scratch space across the nodes).
So the question is: how big are the input files, what size are the output files
and how much scratch space is needed by the applications (local or shared)? -
Quoting Kumaran Rajaram <kums at VerariSoft.Com>:
> I would suggest PVFS2. It offers greater bandwidth (proportional to
> number of I/O nodes dedicated) compared to NFS. Also, you may use PVFS2
> native file interface (rather than POSIX I/O interface) which offers
> flexible parallel I/O interface for scientific workloads. Only caveat, is
> fault-tolerance support and you might need to employ either
> software/hardware RAID for disk failures and heartbeat mechanism for
> server failures. If the environment has less probability of
> server/disk/netowrk faults, then PVFS2 is a good choice for scientific
> workloads and parallel applications.
> On Thu, 13 Jan 2005, Stavros E. Zogas wrote:
> > Hi at all
> > I intend to setup a beowulf cluster(16+ nodes) for scientific
> > applications(fortran compilers) in a University department.What am i
> > to use???PVFS or NFS for file system??
> > Stavros
> Beowulf mailing list, Beowulf at beowulf.org
> To change your subscription (digest mode or unsubscribe) visit
More information about the Beowulf