Improving memory layout for parallel computing

Question

I\'m trying to optimize an algorithm (Lattice Boltzmann) for parallel computing using C++ AMP. And looking for some suggestions to optimize the memory layout, just found out

Answer 1

In general, you should make sure that data used on different cpus are not shared (easy) and are not on the same cache line (false sharing, see for example here: False Sharing is No Fun). Data used by the same cpu should be close together to benefit from caches.