Yeah, sharing FPU makes a lot more sense than sharing integer unit. FPU, particularly on home user applications, is not used nearly as heavily as integer. But A

Yeah, sharing FPU makes a lot more sense than sharing integer unit. FPU, particularly on home user applications, is not used nearly as heavily as integer. But AFAICT the CPU used in the article was one of these Bulldozer-based designs with shared FPUs. And it didn't sound like they did anything with trying to pin processes to specific cores to avoid 2 threads sharing the same FPU. The description of their code doesn't sound like it would be floating-point heavy but its hard to say for sure.