Nico and Howard, Nico Rieck <[email protected]> writes:
> On 02.07.2013 19:53, Howard Hinnant wrote: >> +#elif defined(_WIN32) >> + SYSTEM_INFO info; >> + GetSystemInfo(&info); >> + return info.dwNumberOfProcessors; >> #else // defined(CTL_HW) && defined(HW_NCPU) > > I'm not that familiar with the implementation for the other platforms, > but this snippet returns the number of logical processors. In my local > Windows port I use the number of cores, as I think that's more > appropriate. This is also what MSVCRT does on Windows. As per my interpretation of the standard, returning the number of logical processors is the right thing. I checked VS2013 on a hyperthreaded machine and std::thread::hardware_concurrency does just that. Same for boost::thread::hardware_concurrency. _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
