Shared memory between cores with 2D array and 1D arrays not possible

[RobinGeens]

To define a shared memory link between two cores, the top level memory should be exactly the same. This means that also the served dimensions should be the same, and in case the top level memory serves both dimensions of the 2D array, the top level memory of the 1D array must also have 2 served dimensions.

This can easily be mitigated by defining the 1D array as a 2D array [D1, D2] with sizes [128, 1], and unrolling an arbitrary dimension at D2 (e.g. D2: (B, 1)) to prevent multiple runs of the spatial mapping generator.

This approach is cumbersome and confusing for first time users.