Hi all We are designing a new HPC system for our lab. We are shifting ideas around (our budget is of 30K euro).
We do CFD and mainly run two types of stuff: - Finite volume, with neighbour (hallo cell) comunication (so, communication with neighbours only) - Direct Numerical Simulations, with pseudo-spectral methods, imposing ALL_TO_ALL communication Because there are users of a proprietary finite volume code we are in need of at least one machine with a good RAM figure (48GB or above). So, we would like to tap into the beowulfers pound of knowledge and get your opinions/comments/experience on... - 4 CPU configurations in the same mobo, like this one: http://www.supermicro.com/Aplus/system/2U/2042/AS-2042G-TRF.cfm here, one of our questions has to do with bandwith bottlenecks (with this solution we are thinking we could use DDR or QDR Infiniband to join different nodes) - Some comments on AMD 12 or 8 core Opteron 6100+ CPUs - Registred vs unbuf memmory - Intel alternatives? anything else we should think/look at ? Thanks, Gil Brandão -- " It can't continue forever. The nature of exponentials is that you push them out and eventually disaster happens. " Gordon Moore (Intel co-founder and author of the Moore's law) _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
