From: "Alain Coetmeur" Newsgroups: comp.parallel Subject: Interest in using Moebius topology for parallele interconnect Date: 19 Oct 1998 17:26:26 GMT Organization: Approved: bigrigg@cs.cmu.edu Message-Id: <70fso2$jrq$1@encore.ece.cmu.edu> Originator: bigrigg@ece.cmu.edu I've seen some remarks about using Moebius topology (moebius cube, klein bottle...) for node interconnect in parallel machine to reduce the maximum distance between nodes, ie the latency... I've made some "paper" computations and it seems that a klein bottle topology instead of the classic torus reduce maximum distance. But it seems that nobody use it. twisted torus is sometime prefered. On reason that came to me is that bandwidth is not equaly balanced between vertical and horisontal axis. why not fatten some links, like in fat tree to make it more balanced... what about 3D moebius torus (for me klein bottle is a 2d moebius torus... what is the good name) does anybody know some article about moebius topology networks for parallel computer is this interesting, and if not why... what are the problems? thanks in adavance. -- Alain Coetmeur, Informatique-CDC DTA mailto:alain.coetmeur@icdc.CaisseDesDepots.fr -- Articles to bigrigg+parallel@cs.cmu.edu (Admin: bigrigg@cs.cmu.edu) Archive: http://www.hensa.ac.uk/parallel/internet/usenet/comp.parallel