<div dir="ltr">Brian,<div>I managed several cluster which used Star-CCM+ when I was at McLaren F1.</div><div>Can you tell us a little about what Pepsico are using CFD for? It sounds interesting!</div><div><br></div><div>Yes, the normal method is to NAT through the cluster head node. Some notes though:</div><div><br></div><div>a) the next step is then to have a license 'sensor' - which stops jobs being launched if there are not enough licenses.</div><div>If you dont do that, then jobs will start, and not get enough licenses.</div><div>Altair have an example PErl script to do that with PBSPro, thogh these days you would do it as a 'hook' script written in Python.</div><div>There are similar job prolog scripts around for Moab I am sure.</div><div><br></div><div>b) A reminder that Star-CCM+ have a cloud licensing scheme also, though I would imagine you have an on-premise Flexlm license.</div><div>You can use an ssh tunnel to access the cloud license server.</div><div><br></div><div>c) If you install further clusters, use a unique internal cluster domain name. You dont have to, but if all your clusters use for examplel cluster.local or whatever then you can get slightly confused as to which cluster is checking out the licenses.</div><div>(I am speaking from experience here!)</div><div><br></div><div>John Hearns</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 14 April 2017 at 20:34, Richter, Brian J {BIS} <span dir="ltr"><<a href="mailto:Brian.J.Richter@pepsico.com" target="_blank">Brian.J.Richter@pepsico.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="color:#17365d">Hi All, <u></u><u></u></span></p>
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<p class="MsoNormal"><span style="color:#17365d">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.
<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="color:#17365d">Thanks! <u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#17365d"><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-bottom:3.0pt"><b><span style="font-family:"Arial",sans-serif;color:#404040">Brian J. Richter<u></u><u></u></span></b></p>
<p class="MsoNormal" style="margin-bottom:2.0pt;line-height:120%"><span style="font-size:9.0pt;line-height:120%;font-family:"Century Gothic",sans-serif;color:#696b73">Global R&D Senior Analyst
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<p class="MsoNormal" style="margin-bottom:2.0pt;line-height:120%"><span style="font-size:9.0pt;line-height:120%;font-family:"Arial",sans-serif;color:#696b73"><a href="mailto:Brian.J.Richter@pepsico.com" target="_blank">Brian.J.Richter@pepsico.com</a></span><b><u><span style="line-height:120%;font-family:"Arial",sans-serif;color:blue"><u></u><u></u></span></u></b></p>
<p class="MsoNormal" style="margin-bottom:2.0pt;line-height:120%"><b><span style="line-height:120%;font-family:"Century Gothic",sans-serif;color:#696b73"><u></u> <u></u></span></b></p>
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