3 ms·
Calxeda five XAUI (50 Gbps) to a 4 core 1.1GHz 5W. 200ns per hop. A ToR switch will slow you down to 2000-3500ns. Tilera TilePro64, 64 core 866MHz 22W, 1.7Tbp
by brooksbp 14y ago
Calxeda five XAUI (50 Gbps) to a 4 core 1.1GHz 5W. 200ns per hop.
A ToR switch will slow you down to 2000-3500ns.
Tilera TilePro64, 64 core 866MHz 22W, 1.7Tbps core-to-core, 46ns L1/L2 miss found in adjacent core, four XAUI (40 Gbps).
When compared to Tilera, Calxeda has a high bandwith per compute ratio. But 200ns core-to-core is not as fast as 46ns.
Tilera also has higher core/watt ratio.