Multiprocessing Services (deprecated) [1]
non-ios example reference using C#: threads vs. tasks/system() [2]
Non-working iOS task take: system() call[3] using openmpi to assign cpu affinity[4]
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[0] : https://developer.apple.com/library/archive/documentation/Ge...
[1] : https://developer.apple.com/documentation/coreservices/carbo...
[2] : https://www.codeproject.com/Questions/746729/Csharp-How-to-r...
[3] : https://github.com/holzschu/ios_system
[4] : https://community.intel.com/t5/Intel-Moderncode-for-Parallel...