Intra-vector SIMD instructions for core specialization
ICCD'09 Proceedings of the 2009 IEEE international conference on Computer design
Extending the cell SPE with energy efficient branch prediction
EuroPar'10 Proceedings of the 16th international Euro-Par conference on Parallel processing: Part I
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There is a clear trend towards multi-cores to meet the performance requirements of emerging and future applications. A different way to scale performance is, however, to specialize the cores for specific application domains. This option is especially attractive for low-cost embedded systems where less silicon area directly translates to less cost. We propose architectural enhancements to specialize the Cell SPE for video decoding. Specifically, based on deficiencies we observed in the H.264 kernels, we propose a handful of application-specific instructions to improve performance. The speedups achieved are between 1.84 and 2.37.