I am using the .40 lunatics installer. (Yes, I know it's been removed from the d/l site due to legal issues that are to be resolved.)

Anyway, I need optimization advice, and I am hoping our ARMY of S@H users can help provide it.

CUDA: I think this is fairly straight forward, as there is only one kind of task to choose. But what is the right ratio of tasks and CPU usage? I have 560 TI, and 580. I am currently using .25 CPU and 2 tasks per GPU. What settings *should* I be using?

ATI: This one is more complicated. There are two different apps: Multibeam and astropulse. My cards are all 7970. Many questions

1) Which pays better?

2) If MB, same questions as with CUDA. What CPU and number of tasks per GPU to use?

3) If AP, more complicated questions. What number of tasks per GPU. And what with that number in mind, what options settings? For example:

-unroll 32 -ffa_block 16384 -ffa_block_fetch 8192

I have no idea what any of these options do, and this is probably an incomplete list. Does a FAQ for this stuff exist?

TIA!