[Beowulf] are compute nodes always kept in a private I/P and switch space?

Rahul Nabar rpnabar at gmail.com
Tue Jan 12 23:06:25 PST 2010

I always took it as natural to keep all compute nodes on a private
switch and assigned them local I/P addresses. This was almost
axiomatic for an HPC application in my mind. This way I can channel
all traffic to the world and logins while a select login-node. Then
firewall the login nodes carefully.

Just today, though, on a new project the  admin said he always keeps
his compute nodes with public I/Ps and runs individual firewalls on

This seemed just so wrong to me in so many ways but i was curious if
there are legitimate reasons why people might do this? Just curious.


More information about the Beowulf mailing list