Re: utterly confused by Lightweight Grid

*To*: mathgroup at smc.vnet.net*Subject*: [mg97933] Re: utterly confused by Lightweight Grid*From*: Jon McLoone <jonm at wolfram.co.uk>*Date*: Thu, 26 Mar 2009 05:20:00 -0500 (EST)*References*: <gq2esk$ean$1@smc.vnet.net> <gqacq3$jaj$1@smc.vnet.net>

On Mar 25, 10:45 am, Vince <blues... at gmail.com> wrote: > Licenses aside, three related questions: > > 1. Does Wolfram Lightweight Grid contain a copy of Mathematica 7.0.1? Yes. It includes the binaries of Mathematica 7.0.1. > 2. If so, is that the media it uses to provide a "computation" kernel? By default, yes. But there is a way to configure it launch from another path, which might, for example be your 7.0.0 install. > 3. If so, can this be incompatible with a master kernel and/or other > computation kernels at version 7.0.0? I don't beleive that there should be any problems. Except, of course, if you distribute a problem where there was a fix/change in 7.0.1, the result that you got might be somewhat non-deterministic depending on which kernel performed the calculation. For example ParallelEvaluate[$ReleaseNumber] Would give a somewhat unpredicable list of 0s and 1s if you had a mixed grid of 7.0.1 and 7.0.0 binaries. In general, I would recommend upgrading all of your installs to 7.0.1 anyway. Jon