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One of benefit of coarse-grained dynamically reconfigurable processor arrays (DRPAs) is their low dynamic power consumption by operating a number of processing element (PE) in parallel with a low frequency clock. However, in the future advanced process, the leakage power will occupy a considerable part of the total power consumption, and it may degrade the advantage of DRPAs. In order to reduce the...
Based on the power consumption analysis of a real dynamically reconfigurable processor array (DRPA) prototype MuCCRA-3, it appears that the key of power saving is keeping the datapath on the processing element (PE) array as possible. Fine grain partial reconfiguration (FGPR) is a simple technique to minimize the change of configuration code in a hardware context switching. In FGPR, a configuration...
A heterogeneous multicore SoC (System on a Chip) has been developed for HD (high-definition) multimedia applications that require secure DRM (digital rights management). The SoC integrates three types of processors: two specific-purpose accelerators for a cipher and a high-resolution video decoding; one general-purpose accelerator (MX: Matrix processor); and three CPUs. This is how our SoC achieves...
The power consumption of dynamically reconfigurable processing array (DRPA) is quantitatively analyzed by using a real chip layout and applications taking into account the reconfiguration power. Evaluation result shows that processing power for PEs is dominant and reconfiguration power is about 20.7% of the total dynamic power consumption. Based on the above evaluation results, we proposed two dynamic...
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