Our paper "Runtime Reconfigurable Memory Hierarchy in Embedded Scalable Platforms" has been presented in Tokyo at ASPDAC 2019. Check out the slides of the presentation. This work is part of the DECADES project.

In heterogeneous systems-on-chip, the optimal choice of the cache-coherence model for a loosely-coupled accelerator may vary at each invocation, depending on workload and system status. We propose a runtime adaptive algorithm to manage the coherence of accelerators. The algorithm’s choices are based on the combination of static and dynamic features of the active accelerators and their workloads. We evaluate the algorithm by leveraging our FPGA-based platform for rapid SoC prototyping. Experimental results, obtained through the deployment of a multi-core and multiaccelerator system that runs Linux SMP, show the benefits of our approach in terms of execution time and memory accesses.