Gordon Henriksen a écrit : > On Oct 24, 2007, at 15:29, Adrien wrote: > >> 2007/10/24, Xavier Leroy > >: >> >>> Then someone told me that the Playstation 3 is a >>> PPC64/Linux platform... I'm still not quite sure whether having >>> OCaml on PPC64/Linux is worth the effort, even if we had the >>> corresponding hardware. >> >> PlayStation3's processor (the Cell) has some parenty with powerpc >> but it mostly has differences (cell is a ppc6). It has many cores and >> in fact a variable number of more-or-less specialized cores. It's a >> sort of revolution because its SMP capabilities are really different >> from thos of a Core2Duo or of an Athlon64X2. I think there is at >> least a theorical interest as it seems to perfectly fit simultaneous >> processing (but maybe not so close). > > The SPUs are quite unique, but the PPU (the likely target of an Ocaml > implementation) is a fairly ordinary PowerPC. not so fairly ordinary: It has an in-order execution model (so it is very simple to free enough room for the PPU), but it seems not to impact performance. And it has a single precision floating point unit which is ultra fast (15 times faster than the double precision unit of an intel chip). For some specific numerical code, report achieve around 6 times the speed of an intel chip by representing floats as a pair with a single precision and a double precision approximation (doing the first iteration using simple precision). ... Why did apple moved to intel ? So guess what you would get using the SPUs ... > > — Gordon > > ------------------------------------------------------------------------ > > _______________________________________________ > Caml-list mailing list. Subscription management: > http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list > Archives: http://caml.inria.fr > Beginner's list: http://groups.yahoo.com/group/ocaml_beginners > Bug reports: http://caml.inria.fr/bin/caml-bugs > -- Christophe Raffalli Universite de Savoie Batiment Le Chablais, bureau 21 73376 Le Bourget-du-Lac Cedex tel: (33) 4 79 75 81 03 fax: (33) 4 79 75 87 42 mail: Christophe.Raffalli@univ-savoie.fr www: http://www.lama.univ-savoie.fr/~RAFFALLI --------------------------------------------- IMPORTANT: this mail is signed using PGP/MIME At least Enigmail/Mozilla, mutt or evolution can check this signature. The public key is stored on www.keyserver.net ---------------------------------------------