CUDA and OpenCL resources.

[Fusiontron]

I have been offered a research position which requires knowledge of these. Both are easily acquired and I should have everything running by tonight. What books or documents would anyone recommend on these?

[FourierFaux]

I have no idea what kind of an architecture you're dealing with...

If you're dealing with something like a Fermi-Cluster:

1) GPU Computing Gems Emerald Edition
http://www.amazon.com/GPU-Computing-Gems-Emerald-Applications/dp/0123849888

If you're dealing with a non-homogeneous cluster of CPU's; I don't have a good recommendation, I have read that OpenCL can handle this easily, but I've not actually worked with this kind of an application... I think that would merely require changing some of the initialization options in the code.