A Bandwidth Control Arbitration for SoC Interconnections Performing Applications with Task Dependencies

A Bandwidth Control Arbitration for SoC Interconnections Performing Applications with Task Dependencies

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Current System-on-Chips (SoCs) execute applications with task dependency that compete for shared resources such as buses, memories, and accelerators.In such a structure, the arbitration policy becomes a critical part of the system to guarantee access and bandwidth suitable for the competing applications.Some strategies proposed in airpods in jacksonville the literature to cope with these issues are Round-Robin, Weighted Round-Robin, Lottery, Time Division Access Multiplexing (TDMA), and combinations.However, a fine-grained bandwidth control arbitration policy is missing from the literature.

We propose an innovative arbitration policy based on opportunistic access and a supervised utilization of the bus in terms of transmitted flits (transmission units) that settle the access and fine-grained control.In our proposal, every competing element has a budget.Opportunistic access grants the bus to request even if the component has spent all its flits.Supervised debt accounts a record for every transmitted flit when it has jerome brown jersey no flits to spend.

Our proposal applies to interconnection systems such as buses, switches, and routers.The presented approach achieves deadlock-free behavior even with task dependency applications in the scenarios analyzed through cycle-accurate simulation models.The synergy between opportunistic and supervised debt techniques outperforms Lottery, TDMA, and Weighted Round-Robin in terms of bandwidth control in the experimental studies performed.