> One of the main criticisms of LINPACK as a benchmark is that it is a low-communication benchmark. Essentially, you're doing O(n^3) computation on O(n^2) commu

> One of the main criticisms of LINPACK as a benchmark is that it is a low-communication benchmark. Essentially, you're doing O(n^3) computation on O(n^2) communication. In many benchmarks, such as grid simulation, the ratio of computation is communication is constant with respect to size. This is critical and poorly communicated to most people outside the HPC world.