Just for a clarification (for those of us who are hardware deficient), hyperthreading (the Intel mechanism) isn't actually simultaneous, correct? I had assumed so but I appear to be confused about it. Hyperthreading keeps a thread ready to take advantage of stalls in a preceeding thread, but doesn't ever actually perform a second instruction in one click tick, correct? One might think that there are so many pathways on a modern chip that collisions could be managed among several simultaneous threads. Thanks, Peter
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