DECADES: A 67mm², 1.46TOPS, 55 Giga Cache-Coherent 64-bit RISC-V Instructions per second, Heterogeneous Manycore SoC with 109 Tiles including Accelerators, Intelligent Storage, and eFPGA in 12nm FinFET

As Moore’s Law is coming to an end, heterogeneous SoCs have become ubiquitous, improving performance and efficiency with specialized hardware. However, the addition of hardware accelerators makes data supply more challenging. Feeding data to accelerators becomes a bottleneck, especially for data-intensive workloads such as graph analytics, sparse linear algebra, and machine learning applications. DECADES addresses this issue with a combination of accelerators, embedded FPGA (eFPGA), and its unique ‘‘intelligent storage’’ (IS) tile. DECADES is one of the largest chips ever built in academia and has the highest core count of cache-coherent, OS-capable, 64-bit RISC-V processors.