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c++boostmulticoreidiomsaffinity

C++'ish idiom for setting core affinity?

Consider the following code:

cpu_set_t cpuset; 

CPU_ZERO(&cpuset);
CPU_SET(0, &cpuset);
sched_setaffinity(0, sizeof(cpuset), &cpuset);

this sets the processor affinity of a process - the cores on which it is allowed to be scheduled basically. It uses the GNU C library facility (but I'm not sure it's supported on all OSes where glibc is supported). Now, I'm pretty certain the C++ standard library doesn't offer a similar facility, but - what is a common, more C++'ish idiom for doing the same thing?

Solution

  • There is no such functionality in the C++ standard library. Also, note that there is no such functionality in the C standard library either. It is provided by glibc, but not in its role as the C standard library: it's a part of Linux, not of the C standard.