{ my $.02 } I don't see this as being any sort of problem...all of your clusters can talk to the flexlm server if necessary to learn what is available... All of the flexlm integration work I've done on LSF and Grid Engine clusters has involved local cluster-side scripts or daemons that regularly poll one or more of the central, enterprise FlexLM servers. The scripts query the server for the status and availability of each particlar application token they care about. This information is then cached/incorporated into the cluster scheduler while being regularly updated. The approach is not 100% bulletproof so you typically need epilog or job termination scrips that are capable of automatically finding the jobs that died due to license-not-available reasons caused by the lightweight and detached nature of the polling mechanism. If your licenses are cheap and/or under-subscribed (never found this yet!) you can cheat and avoid a few of the race conditions by fooling your cluster into thinking there are 1-2 tokens less then are really available. That gives you a bit of a buffer if some other cluster takes some free tokens between polling updates and job dispatch. As long as all your clusters have at least one node that can poll the FlexLM server(s) this should work. You should be able to follow the information you found online and just replicate it on each of your clusters. If you want to get fancy you can write a single license polling daemon that regularly sends information in some sort of parsable form to each of the local clusters. Your local license checking scripts then have much less work to do and don't have to talk on the network. -Chris Daniel.G.Roberts@aventis.com wrote: > Hello All > Anyone have any experience using FlexLM servers with several different linux clusters? > In essence, I have three separate linux clusters which need to communicate with a flexlm server. > I can find several examples of one cluster communicating with a flexlm server, but what about more than one cluster? > Thanks for any direction! > Sincerely > Dan > -- Chris Dagdigian, <dag@sonsorol.org> BioTeam - Independent life science IT & informatics consulting Office: 617-665-6088, Mobile: 617-877-5498, Fax: 425-699-0193 PGP KeyID: 83D4310E iChat/AIM: bioteamdag Web: http://bioteam.net