In Place Array Transpose for Fortran
The default transpose function in Fortran allocates a new array and copies the old array in transposed order. This results in bad memory performance for large arrays
This module uses a 1D array for storage and mimmics differntly shaped views to the same underlying data via pointer reassignment.
While this greatly improves memory efficiency, the underlying data array needs the TARGET attribute.
This might prevent the compiler from optimizing with SIMD instructions.
If this is the case, the ! omp simd directives could be used.