A memory cluster includes a first block, a second block, a third block, and a fourth block arranged to have a center hole, wherein the first, second, third, and fourth blocks are each have a first port, a second port, a third port, and a fourth port. A first core is in the center hole coupled to the first port of each of the first, second, third, and fourth blocks. A second core is in the center hole coupled to the second port of each of the first, second, third, and fourth blocks. A third core is in the center hole coupled to the third port of each of the first, second, third, and fourth blocks. A fourth core in the center hole coupled to the fourth port of each of the first, second, third, and fourth blocks.