[Beowulf] Building new cluster - estimate

Robert Latham robl at mcs.anl.gov
Fri Aug 8 10:41:38 EDT 2008

On Wed, Aug 06, 2008 at 09:41:35AM -0400, Perry E. Metzger wrote:
> Matt Lawrence <matt at technoronin.com> writes:
> > Could be.  Given the long and sordid history of NFS, I prefer to not
> > use it whenever there are practical alternatives.
> NFS is a fine protocol and works very well. However, traditionally the
> Linux implementation of NFS has been of less than perfect quality. You
> shouldn't confuse NFS with NFS on Linux.

It is exceedingly difficult to perform correct parallel I/O on NFS,
let alone achieve high performance.  NFSv4 promises to make this
situation better.


Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Lab, IL USA                 B29D F333 664A 4280 315B
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