Preface: IBM POWER8 technology

Describes the special features and applications supported by the IBM PowerA systems have been major workhorses for both commercial enterprise and high-performance computing. Starting with the IBM POWER4 processor (2001), generation after generation of Power processors have led the way for UNIXA-based computing by introducing advanced and highly effective techniques, such as large-scale non-directory-based symmetric multiprocessors (SMPs), flexible and dynamic partitioning of resources among operating systems executing in the same SMP, simultaneous multithreading (SMT) multiprocessor chips, and high-frequency processor design.