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    $\begingroup$ How can one find out that a function like Total is using several threads? Its only attribute is Protected. Can I implant some Developer`ThreadID[] into the evaluation somehow? $\endgroup$ Commented Nov 2, 2015 at 17:13
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    $\begingroup$ @Karsten7. No top level interface for this, it's a pthread-level API. Your OS should however have tools to monitor threads as they are being launched, their resource usage etc. $\endgroup$ Commented Nov 2, 2015 at 18:15
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    $\begingroup$ Would it not be possible to fix the Windows implementation so that it takes all threads into account (like the Task Manager does)? I appreciate that the documentation technically allows for this behavior, but from a usefulness point of view, it's very unhelpful (in my opinion). Not considering separate processes is, however, absolutely fine (again, IMO). $\endgroup$ Commented Nov 2, 2015 at 22:02
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    $\begingroup$ Has the implementation of compensated summation changed at all in 10.3? mathematica.stackexchange.com/questions/79174/… $\endgroup$ Commented Nov 2, 2015 at 23:02
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    $\begingroup$ @OleksandrR. Yes, developers are aware of this in principle. It would be nice to have consistency between platforms and taking all threads in account seems more useful to me, though presumably there could be arguments for the other side too. $\endgroup$ Commented Nov 2, 2015 at 23:03