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c++ Programming Glossary: coresProgrammatically find the number of cores on a machine http://stackoverflow.com/questions/150355/programmatically-find-the-number-of-cores-on-a-machine find the number of cores on a machine This is more of a curiosity question than something.. actual solving but is there a way to determine how many cores a machine has from C in a platform independent way If no such..
C++ Timer function to provide time in nano seconds http://stackoverflow.com/questions/275004/c-timer-function-to-provide-time-in-nano-seconds Athlon X2 dual core CPUs return the PC of either of the cores randomly the PC sometimes jumps a bit backwards unless you specially..
http://stackoverflow.com/questions/2901694/programatically-detect-number-of-physical-processors-cores-or-if-hyper-threading detect number of physical processors cores or if hyper threading is active on Windows Mac and Linux I.. Creating more threads than there are physical processors cores degrades the performance of my program considerably. I can already.. already correctly detect the number of logical processors cores correctly on all three of these platforms. To be able to detect..
What techniques can be used to speed up C++ compilation times? http://stackoverflow.com/questions/373142/what-techniques-can-be-used-to-speed-up-c-compilation-times Use Parallelism Many compilers IDEs support using multiple cores CPUs to do compilation simultaneously. In GNU Make usually used.. More RAM faster hard drives including SSDs more CPUs cores will all make a difference in compilation speed. share improve..
Are C++ Reads and Writes of an int atomic http://stackoverflow.com/questions/54188/are-c-reads-and-writes-of-an-int-atomic to deal with including cache coherency between processors cores. Use atomic operations like Interlocked on Windows and the equivalent..
http://stackoverflow.com/questions/6319146/c11-introduced-a-standardized-memory-model-what-does-it-mean-and-how-is-it-g When you are talking about splitting code across different cores that's in the standard we are talking about the memory model...
how to achieve 4 FLOPs per cycle http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle 6.55279e 010 sum 17.8122 Theoretical SSE peak is 4 flops 4 cores 4.4 GHz 70.4 GFlops. Actual is 65.5 GFlops . Let's take this.. 1.3823e 011 sum 35.6244 Theoretical AVX peak is 8 flops 4 cores 4.4 GHz 140.8 GFlops. Actual is 138.2 GFlops . Now for some.. 5.13452e 010 sum 17.8122 Theoretical SSE Peak 4 flops 4 cores 3.5 GHz 56.0 GFlops . Actual is 51.3 GFlops . My processor temps..
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