On Mon, Nov 26, 2007 at 10:06:03AM -0600, Robert Latham wrote: > > The word 'distributed' in the subject is telling... I like to make a > distiction between 'distributed', 'cluster', and 'parallell' file > systems. > > Distributed: uncorrdinated access among processes. Possibly over the > wide area. Total capacity is important, but performance is not. > > Cluster: local access only. maybe homedir-style accesses (lots of > metadata operations, lots of small file creation/reading/writing -- > unpack a tarball, compile a kernel). also has uncoordinated access > among many processes. > > Parallel: a high performance file system for parallel applications > doing large amounts of I/O. Coordinated access, likely via MPI-IO.
Hmmm. Your "distributed" class could also require a high-performance parallel file system. Consider a parallel "application" transformed into a set of EP "jobs" all accessing the same very large files. -- David N. Lombard, Intel, Irvine, CA I do not speak for Intel Corporation; all comments are strictly my own. _______________________________________________ Beowulf mailing list, [email protected] To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
