D 3.5 Methodologies for the design of physical-level-aware NoC topologiesGrant Agreement • November 7th, 2012
Contract Type FiledNovember 7th, 2012A different design point is represented by hypercubes. For 16-end node systems, a 2-ary 4-mesh (4-hypercube) can be obtained from the 2-D mesh by increasing the number of dimensions and by reducing the number of switches in each dimension. Interestingly, the maximum switch degree stays the same, but the 4-hypercube is homogeneous unlike the 2-D mesh. Unfortunately, this comes at the cost of links with uneven length. In fact, in a mesh with more than two dimensions, the links used to connect the dimensions greater than two are longer, and this holds for 50% of the 4-hypercube interswitch links.
D 3.5 Methodologies for the design of physical-level-aware NoC topologiesGrant Agreement • January 13th, 2012
Contract Type FiledJanuary 13th, 2012A different design point is represented by hypercubes. For 16-end node systems, a 2-ary 4-mesh (4-hypercube) can be obtained from the 2-D mesh by increasing the number of dimensions and by reducing the number of switches in each dimension. Interestingly, the maximum switch degree stays the same, but the 4-hypercube is homogeneous unlike the 2-D mesh. Unfortunately, this comes at the cost of links with uneven length. In fact, in a mesh with more than two dimensions, the links used to connect the dimensions greater than two are longer, and this holds for 50% of the 4-hypercube interswitch links.