Vincent Diepeveen wrote: > Performance of mosix and open ssi is of course horrible in terms of > latency between the nodes.
But if the full procceses have no interconexion and the full calculation will be done on independent ucp, then the performance is quite good? isn't it? > So using either mosix or open ssi you can do only if your 100 mbit > connections between the nodes are simply not getting used for your software. > In short only if your > software is doing only each 10 minutes or something a little bit of > communication with other processors. > > For most software here the dual cores AMD are up to 2 times faster than > the dual core intel cpu's when using GCC compiler. > If all what you use is SSE2 then the speed difference will be quite less > than that in advantage of AMD. I'm sorry, but I could not understand what you mean with SSE2? I think that finally I'll be buying AMD, because the performance will be better. > I assume however that the scaling of 2 processes onto 1 node is 100% > anyway as they do 0 communication with each other. > With such cluster software packages that have such ugly communication > behaviour doing any form of communication > is near impossible of course. Hopefully your software isn't doing too > much i/o either. > > AMD chips of course scales a lot better than P4 dual cores. Itanium > scales in fact even better, but just slightly. The diff in scaling > between a P4 dual core and an AMD dual core is significant though. > > Get mainboards with a dual channel memory controller! Off course!! I have this all on mind. > It seems to matter really a lot in tests here for my Diep software (dual > opteron dual core). > > Vincent Regards... -- |---------------------------------------------------------------.--. |Pere Urbón Bayes JabberID: [EMAIL PROTECTED] |o_o | |Dept. of Information and Communication's Engineering |:_/ | |E.T.S. d'Enginyeria. Autonomous University of Barcelona // \ \ |08193 Bellaterra, Cerdanyola del Valles (Catalonia) (| | ) |Tel: +34935813573 QC/2005 (Combinatoric and Coding Group) /'\_ _/`\ |-----------------------------------------------------------\___)=(___/ _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
