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Is it better to use or not to use hyper threading with an i7-6700hq CPU?

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  • Is it better to use or not to use hyper threading with an i7-6700hq CPU?

    Hi,
    I have a laptop with a quad core i7-6700hq CPU with hyper threading and 16GB of RAM.
    For general use is it better to have hyper threading enabled or not?
    What if I'm running CFD codes (with parallel computation) or real time simulation codes (without parallel computation)?
    In the second case I presume it is better to have HT disabled so that the single process can use all the CPU without overrunning.
    For CFD in parallel I don't know, maybe it is better to have twice the number of cores seen by the system even if all of them are only able to execute at half the computation speed of the real core.
    Do you enable or disable it?
    Thank you,
    Xwang
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