This isn't hard to deal with because it's just an evolution of having to check the # of CPU cores to know how many worker threads to start. But there are a few

This isn't hard to deal with because it's just an evolution of having to check the # of CPU cores to know how many worker threads to start. But there are a few more problems because of cache hierarchies; touching the same memory from different CPU clusters at once can be extra slow, possibly even slower than fetching it from DRAM. This is called NUMA (which is ironic for a unified memory SoC.)