We've used both NAT and fully routable private networks up to 1000s of nodes.
NAT was a little more secure fire or needs.
> On Apr 14, 2017, at 2:41 PM, Richter, Brian J {BIS}
> <brian.j.rich...@pepsico.com> wrote:
>
> Thanks a lot, Ed. I will be going the NAT route!
>
> Brian J. Richter
> Global R&D Senior Analyst • Information Technology
> 617 W Main St, Barrington, IL 60010
> Office: 847-304-2356 • Mobile: 847-305-6306
> brian.j.rich...@pepsico.com
>
>
> From: Swindelles, Ed [mailto:ed.swindel...@uconn.edu]
> Sent: Friday, April 14, 2017 1:40 PM
> To: Richter, Brian J {BIS} <brian.j.rich...@pepsico.com>; beowulf@beowulf.org
> Subject: Re: [Beowulf] HPC and Licensed Software
>
> Hi Brian -
>
> For a couple years we did NAT through our head node for checking out licenses
> (including StarCCM) and talking to Red Hat Satellite. We’re now transitioning
> to fully routed networks for our compute nodes, but NAT did the job well.
>
> --
> Ed Swindelles
> Manager of Advanced Computing
> University of Connecticut
>
> On Apr 14, 2017, at 2:34 PM, Richter, Brian J {BIS}
> <brian.j.rich...@pepsico.com> wrote:
>
> Hi All,
>
> We just built our first HPC and I have what seems like a rather dumb question
> regarding best practices and compute nodes. Our HPC setup is currently small,
> we have a HeadNode which runs MOAB/Torque and we have 4 compute nodes
> connected with IB. The compute nodes are on their own private network. My
> question is, what is the best way to handle software that requires licenses
> to run on the compute nodes? For instance we are trying to get STARCCM+ up
> and running on the cluster, the license server is on our general user
> network, the headnode is also on the user network, but when we submit a job
> to torque for STARCCM it keeps throwing errors that the software cannot
> connect to the license server. Is it best practice to create a network path
> from the compute nodes out to the license server through the HeadNode? I feel
> like I’m missing something really simple here.
>
> Thanks!
>
> Brian J. Richter
> Global R&D Senior Analyst • Information Technology
> 617 W Main St, Barrington, IL 60010
> Office: 847-304-2356 • Mobile: 847-305-6306
> brian.j.rich...@pepsico.com
>
>
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