EdV
4/30/2012 8:51:43 AM
User Rank Guru
A one and two and a
zero. . . I guess one could leave out the two also since my current FPGA work is for all intents and purposes counters and dividers.
Re: Grey Code
Counter / Timer's Done in Grey Codes
Re: Grey Code
Hi William -- I have to say that I love Gray Codes. I always thought these were realtively simple, but I keep on finding hidden layers to them, like implementing Gray Codes in bases other than 2, or implementing Gray Codes that are truly Gray but have count sequences shorter than 2^n (liek a 4-bit Gray Code that cycles through only 14, or 12, or 10 states)...
Mini Cray
That's cool the little Cray. I guess we could have controlled the Apollo capsule with an iPhone with speed left to listen to mp3's on the trip. In my work with programmable logic controllers for industrial control, I can say that there is no substitute for floating point math. It's a pain to have to use integer math when the real world doesn't.
Re: Mini Cray
In the not-so-distant past, you really didn;t think about using floating-point math in FPGAs. All that has changed over the last couple of years -- now FPGAs can be used to do mind-boggling amounts of floating-point math -- I will have to discuss thi sin more detail in the future
DP Floating Point
I remember a few years ago when it looked like double precision floating point was the holy grail for FPGA designs. For many numerical algorithms DP was a must have to get correct results. Getting them fast was also important (one example was in financial trading where a split second made the difference between a profit or a loss). Now it seems like GPUs are a likely candidate for these applications too. It would be nice to see a GPU comparison to FPGAs in the HPC space.
Re: DP Floating Point
Hi Warren -- re your comment " It would be nice to see a GPU comparison to FPGAs in the HPC space." You are correct -- it would be nice to see such a comparison -- so when do you think you wil have it ready to share with the rest of us (grin)
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