Dynamic routing strategy for embedded distributed architectures

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“…We chose a manycore platform, called CEDAR [9], to verify the SNet idea, which consists of an array of homogenous RISC cores coupled in a mesh manner via shared buffers. The selected cores have a minimal footprint of 16 and contain a 4 instruction memory and a 4 local data memory in the platform's actual implementation.…”

“…The selected cores have a minimal footprint of 16 and contain a 4 instruction memory and a 4 local data memory in the platform's actual implementation. [9] has further information about the CEDAR platform and the ACO algorithm. The following are the features of SNet:  Communication is done by running the ACO algorithm on an arbitrary number of cores using a routing process.…”

“…The DMC (Direct Management of Communication) is a brand-new element that has been added to the CEDAR platform [9]. It is tied to each CPU in order to speed up data transfers between distant tasks.…”

“…As illustrated in Figure 2, the DMCs are connected in a point-to-point way, and packets are routed in a wormhole form. To distinguish between the two platforms, we will designate CEDAR-S (as for CEDAR-Software) the original one described in [9]. Furthermore, the platform, which includes the DMCs network, will be known as CEDAR-H (as for CEDAR-Hardware) (cf.…”

“…The goal of this proposal is to improve future manycores' flexibility, scalability, and programmability. To design routing pathways, SNet uses an adaptive, bio-inspired routing approach that implements the ACO metaheuristic [9]. After that, we will go through the DMC's hardware design.…”