Article

Article title SPEEDUP PREDICTIONS FROM HYBRID RECONFIGURABLE SYSTEMS
Authors S.A. Stepanenko
Section SECTION I. PRINCIPLES OF CONSTRUCTION, ARCHITECTURE AND HARDWARE BASE SUPERCOMPUTERS
Month, Year 12, 2014 @en
Index UDC 519.6
DOI
Abstract This paper presents speedup predictions for a reconfigurable hybrid computing system containing a fixed number of processor cores and accelerators and switching components to vary connections between the processor cores and accelerators. Maximum acceleration criteria for given values of initial process parameters are specified. As distinct from FPGA-based reconfigurable systems, the systems considered in this paper contain only two components: a MIMD-component, being a set of universal processor cores, and a SIMD-component, being a set of arithmetic accelerators. Restricting the types of components to these two computing structures makes it possible to considerably simplify the algorithm of decomposition and reconfiguring. In particular, it resolves into (hardware- or software-) switched connection of processor cores and accelerators implemented based on the analysis of the values of initial process parameters. The relationships obtained show that if certain conditions are fulfilled, reconfiguring makes it possible to speed up the process of computations by hybrid systems significantly, but no more than by a factor of two, in comparison with non-reconfigurable systems. Vendors of computer components have established production of systems structurally identical to those studied in this paper. Application of the solutions proposed in the paper renders computing systems more efficient.

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Keywords Hybrid computing system; MIMD-component; SIMD-component reconfigurable system.
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