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Efficient Embedded Software Migration towards Clusterized Distributed-Memory Architectures

2015; Institute of Electrical and Electronics Engineers; Volume: 65; Issue: 8 Linguagem: Inglês

10.1109/tc.2015.2485202

2326-3814

Rafael Garibotti, Anastasiia Butko, Luciano Ost, Abdoulaye Gamatié, Gilles Sassatelli, Chris Adeniyi-Jones,

Embedded Systems Design Techniques

A large portion of existing multithreaded embedded software has been programmed according to symmetric shared memory platforms where a monolithic memory block is shared by all cores. Such platforms accommodate popular parallel programming models such as POSIX threads and OpenMP. However with the growing number of cores in modern manycore embedded architectures, they present a bottleneck related to their centralized memory accesses. This paper proposes a solution tailored for an efficient execution of applications defined with shared-memory programming models onto on-chip distributed-memory multicore architectures. It shows how performance, area and energy consumption are significantly improved thanks to the scalability of these architectures. This is illustrated in an open-source realistic design framework, including tools from ASIC to microkernel.