[Pw_forum] nsfd

[Vo, Trinh (388C)]

Hi Paolo,

Thank you for your message.

I understand now (hope it is correct).   Since we do not have Parallel File system on our cluster, all I/O via the network are used.  One  option now is probably to write directly on local scratch disk to avoid NSF.  (I do not like this option very much).  In your opinion, is it possible to add the Parallel File System to an existing cluster?

Trinh


On 7/17/09 2:32 AM, "Paolo Giannozzi" <giannozz at democritos.it> wrote:

On Jul 17, 2009, at 2:47 , Vo, Trinh (388C) wrote:
> I usually saw lines of 'nsfd' appear on the 'Command' column.  What
> 'nsfd' means?
>
"National Science Foundation daemon". It checks how you are spending the
taxpayer's money, terminates your NSF grant if you are wasting it :-)

Seriously: it is "nfsd", it stands for "network file system daemon",
it means that
you are performing heavy I/O via the network, using the nfs software.
This is something you should avoid as much as possible.

Paolo
---
Paolo Giannozzi, Dept of Physics, University of Udine
via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222



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