Top 5 Xeon Phi Misconceptions - Puget Custom Computers: "Well, yes and no. The Xeon Phi does have 57-61 cores and they are 64-bit x86 compatible. However, those Xeon Phi cores look like they belong to a separate computer connected over an internal network to your host OS. I've talked with several people who thought those extra cores were just automatically available to your host system. Those extra cores do not just show up along side your system processor cores and are not directly visible to the host OS!"
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