I've been looking into GPGPU for several years now, there was even some buzz in the comp-chess stream but the downsides seemed to be to much. Think the big problem is the latency on the PCI/AGP bus. Though that might not be as much an issue now with PCI-x, etc.
For more info I'd refer you to this site which has been using GPU's for years. http://www.gpgpu.org/ -Josh On Dec 6, 2007 7:32 PM, Darren Cook <[EMAIL PROTECTED]> wrote: > An interesting article on using GPUs for general purpose computation: > > http://www.linux-mag.com/microsites.php?site=business-class-hpc&sid=build&p=4543 > > In (current mainstream) computer go there are two main CPU-bound > algorithms: playouts (random, or incorporating logic or patterns) and > tactical search. But the GPUs seem even more restricted in what they can > do than the PS3 Cell processors (where the main restriction there was > only a small amount of local memory). E.g. from the above article: > * No stack or heap > * No integer or bit-wise operations > * No scatter operations (a[i]=b) > * No reduction operations (max(), min(), sum()) > > On the other hand this quote [1] from the Sh language page says it has > for/if statements, which the latest GPUs support. > > Does anyone here both understood the above go algorithms *and* had > experience with programming GPUs, and can confirm that they are not > really useful? > > Darren > > > [1]: From http://www.libsh.org/about.html > Sh incorporates full language constructs for branching (e.g. for loops > and if statements). Once GPUs are powerful enough to execute such > constructs (which, to some extent, is true today) backends can be > adjusted to compile such code to real hardware assembly. In the mean > time our GPU simulator Sm implements various features expected to be in > GPUs in the near future, such as a unified vertex and fragment > instruction set. > > > -- > Darren Cook > http://dcook.org/mlsn/ (English-Japanese-German-Chinese free dictionary) > http://dcook.org/work/ (About me and my work) > http://dcook.org/work/charts/ (My flash charting demos) > _______________________________________________ > computer-go mailing list > computer-go@computer-go.org > http://www.computer-go.org/mailman/listinfo/computer-go/ >
_______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
