Effective optimization strategies on modern C++ compilers

Question

I\'m working on scientific code that is very performance-critical. An initial version of the code has been written and tested, and now, with profiler in hand, it\'s time to

Answer 1

If you work on big matrices for instance, consider tiling your loops to improve the locality. This often leads to dramatic improvements. You can use VTune/PTU to monitor the L2 cache misses.