PRAD: A Bayesian Optimization-based DSE Framework for Parameterized Reconfigurable Architecture Design
FCCM(2023)
Abstract
Coarse-Grained Reconfigurable Architecture (CGRA) is a domain-specific reconfigurable architecture. Generally, the CGRA architecture consists of IO, memory, coarse-grained processing element (PE), and interconnect. Usually, ALU in PE contains a relatively complete set of operations and most of the interconnects adopt neighbor-to-neighbor (N2N) [1], switch-based [2], and combination of the connection box and switch box (CB-SB) patterns [3]. However, the complex operation sets and switch-based/CB-SB fully-connected interconnects provide sufficient reconfigurability at the cost of resource overhead. Thus, it is important to build a parameterized architecture of CGRA to achieve a balance among hardware overhead, flexibility and performance through automatic design space exploration (DSE).
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