On Fri, Jul 11, 2008 at 7:06 AM, Xavier Leroy <[EMAIL PROTECTED]> wrote: > Look at GPUs, which are the closest we have > today to a manycore system: 128 cores are available today, more is > in preparation, but the programming model is definitely not SMP.
I was reading an article about CUDA written by an in-the-trenches GPGPU programmer. I can't find it now, but one of the points of the article, as I understood it, was that stream-oriented approaches (like BrookGPU) look great in theory, but don't work very well in practice - they can often be orders of magnitude slower than "dirty" approaches that use some mutable shared memory block in the video card. In other words, pure-functional programming for multi-core concurrency is just a speculative promise (for academic funding purposes perhaps). (If this sounds familiar and anyone has the link, please post) _______________________________________________ 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
