Some two hundred scientists from more than 40 countries are researching what the next generation of ultrascale computing systems will be like. The study is being carried out under the auspices of NESUS, one of the largest European research networks of this type coordinated by Universidad Carlos III de Madrid (UC3M).
Ultrascale systems combine the advantages of distributed and parallel computing systems. The former is a type of computing in which many tasks are executed at the same time coordinately to solve one problem, based on the principle that a big problem can be divided into many smaller ones that are simultaneously solved. The latter system, in both grid and cloud computing, uses a large number of computers organized into clusters in a distributed infrastructure, and can execute millions of tasks at the same time usually working on independent problems and big data.