On Jul 18, 2016, at 12:37 PM, Nims,Alva John (Al) <[email protected]> wrote: > > No, it is not a new Vector facility, kind of, it is similar, but not true > Vector. > > I think I am stating things correctly. > > Give me a few minutes to find your answers, because it is documented, it was > some of the things I learned from the IBMTechU conference I went to a couple > of months ago. > > From a presentation: > The IBM z13 continues to support the z Integrated Information Processor > (zIIP) which can take advantage of the optional simultaneous multithreading > (SMT) technology capability. SMT allows up to two active instruction streams > per core, each dynamically sharing the core's execution resources.
SMT is not about new instructions; it means a single processor can appear to be two. In other words, it can have two tasks dispatched on it concurrently. All processor types support SMT, but z/OS will never enable SMT on a CP, while you can configure z/OS to enable SMT on zIIPs. -- Pew, Curtis G [email protected] ITS Systems/Core/Administrative Services ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
