What are the advantages and disadvantages of developing GPGPU (general purpose)?

Question

I am wondering what is the key point that helps you in developing GPGPU, and, of course, what limitations you find unacceptable.

Comes to my mind:

• Key benefits: the raw power of these things
• Key constraint: memory model

What is your opinion?

Answer 1

, Ars. , (CPU GPU), , , .

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Answer 2

, GPU , .

http://arstechnica.com/articles/paedia/gpu-sweeney-interview.ars

Answer 3

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. - http://en.wikipedia.org/wiki/CUDA

.

Answer 4

gigaflops - . .

: http://graphics.idav.ucdavis.edu/publications/print_pub?pub_id=907

.

; , , : http://www.scribd.com/doc/5687/The-Next-Mainstream-Programming-Language-A-Game-Developers-Perspective-by-Tim-Sweeney

: http://gpgpu.org