We are beginning some GPU tests. Highly experimental, but not dangerous ;-) At this time it is for Windows users with CUDA GPUs. Please participate!

Right, basically every Windows host with a new enough CUDA capable GPU should run one copy of each testing workunit. (64 bit hosts have been returning these WUs successfully as well.) These workunits will not have credit granted automatically; I'll have to do some kind of manual credit grant to those that complete them. This testing will probably not last more than a week or so, but we'll see. I apologize for disrupting the other regular work during this time. However, if the testing goes well, we may decide to release the GPU version for use with regular workunits -- we'll see.