I´m a little confused. While Mathematica is running while a lot of minutes, I can see in the administrator (Windows8) that CPU is used in a 0%.

Is that normal?

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  • Also look under Processes, where the Kernels are listed. – bbgodfrey Feb 17 '15 at 2:54

This is what I have: the kernel is running (using approx 30% of CPU) and mathematica has 0% of CPU

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