Metis is purpose-built for partitioning graphs and unstructured meshes one uses in finite element/volume methods, and it works great for this.
I have a 3D structured multi-block topology, where each $ni\times nj\times nk$ block can only be partitioned along planes, as opposed to an unstructured topology where the partitions can be drawn anywhere.
Is there any simple way to partition this kind of topology with metis?