Actually doing things with OpenCL
	How about an image manipulation task?

Loading the image:  SOIL will work, could use something more sophisticated
Image has to be copied to video memory (unfortunate, but true)
Brick texture has a lot of pixels!
	Most images do
Memory-bound vs, GPU bound
Did it help?
	gettimeofday, steal from quicksort demo
	vs. CPU, work part vs. work+copy

How about a more complicated algorithm?
	Edge highlighting