Re: [computer-go] FPGA

[Luo Yu <yluo_china@xxxxxxxxx>]

FPGA is quite fast nowadays. Since it is hardware,
it is hard to compare to a CPU. FPGA is working 
parallel, while CPU is working serially, even multi
task is a kind of serial mode. For example, you could
design thousands of adders and multipliers in FPGA,
but
in CPU, there are only couples of them.

As I known, the master clock of FPGA may go up to
300Mhz. But don't assume that it is only as fast as a 
300Mhz pentium. For particular applications, FPGA is 
much faster.

Today, many FPGAs are more than 1 million gates. And
they are in system programmable. I am not sure
if it feasible to implement neural-net simulator in an
FPGA. But MPEG decoder could do.

The cost of a 1 million gate FPGA is about 200 USD. 

Regards,
Leon

--- David Stafford <david_stafford@xxxxxxxxxxxxxxxxx> wrote:
> I know little about FPGAs.  Could I ask some
> questions of those
> of you who are knowledgeable?
> 
> How fast are FPGAs compared to a modern CPU?
> How "big" are they in terms of number of gates or
> high-level circuits?
> Are they reconfigurable on-the-fly or is it too time
> consuming?
> Would it be practical to implement a neural-net
> simulator in an FPGA?
> What does it cost?
> 
> Thanks,
> David
> 
> 
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