2D Reshard Matrix

2D Reshard Matrix: N_cp × N_dcp = 32 transfer paths (highlighting current path)

DCP 0

DCP 1

DCP 2

DCP 3

CP 0
L0-9

CP 1
L10-19

CP 2
L20-29

CP 3
L30-39

CP 4
L40-49

CP 5
L50-59

CP 6
L60-68

CP 7
L69-77

Each path transfers ⌈78/8⌉ = 10 layers per rank (first 6 ranks), ⌊78/8⌋ = 9 (last 2) × 1/N_dcp pages. N_cp CP ranks cover all 78 layers, N_dcp DCP ranks cover all pages.