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A 28nm 27,648-Spin Multichip Digital Ising Accelerator with Pegasus Connectivity
We report a 28 nm four-chip Ising accelerator with 27,648 spins, degree-15 Pegasus connectivity, and 10b coefficients. Boundary-state streaming overlaps interchip transfers with spin updates, achieving 98.03% simulated weak-scaling efficiency. At 140 MHz, the four-chip system delivers 30.24G peak up
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