Changes

* The reason loop interchange works for OpenMP is the way we store our array in memory originally favored "Row-Major" which allows the processor to move across cached data in a row fashion faster than column based... * As you might have seen, Julia’s Loop loop interchange is worseit's for opposite reason OpenMP improves from loop interchange.*[https://docs.julialang.org/en/v1/manual/performance-tips/index.html Julia favours "Column-Major" layouts in cache memory.] [[File:255px-Row_and_column_major_order.svg.png]]

* recap loop interchange benefits for openmp (locality of reference)* discuss julia storing arrays as column major, loop interchange was worse for julia* discuss different levels of optimizationvectorization...