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This article overviews how the rapid changes to field-programmable gate array (FPGA) devices have refocused operating systems research within reconfigurable computing. Where the goal was once to simply use existing operating systems, FPGA-based OS research may now be in the new position of helping define the look and feel of next-generation operating systems for evolving chip-heterogeneous multiprocessor...
Chips are moving from single-core systems to much more complex, heterogeneous many core systems. While heterogeneous architectures promise high performance, they are also challenging our ability to port our existing operating systems to abstract the heterogeneous components into a unified architecture. Baseline solutions to resolve heterogeneity issues within many cores use Remote Procedure Calls...
In this paper, we present hthreads, a unifying programming model for specifying application threads running within a hybrid CPU/FPGA system. Threads are specified from a single pthreads multithreaded application program and compiled to run on the CPU or synthesized to run on the FPGA. The hthreads system, in general, is unique within the reconfigurable computing community as it abstracts the CPU/FPGA...
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