Personally I'm not sure there are any, at least as things stand today. However, I'm fairly convinced that future systems are not going to be powerful monolithi

Personally I'm not sure there are any, at least as things stand today. However, I'm fairly convinced that future systems are not going to be powerful monolithic systems but instead large collections of low-power cooperative compute units. It's not a huge stretch to claim that these exercises are worthwhile efforts to learn how to best exploit future hardware architectures on hardware that exists and is available for purchase today. I certainly would be happier, assuming limitations like the interconnect fabric were well solved, if a common unit of compute quanta was more along the lines of a €50-99, 10-15 watt, board rather than €1-2K, 1-1.5k watt, server.