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Spatially-tiled architectures, such as coarse-grained reconfigurable arrays (CGRAs), are powerful architectures for accelerating applications in the digital-signal processing, embedded, and scientific computing domains. In contrast to field-programmable gate arrays (FPGAs), another common accelerator, they typically time-multiplex their processing elements and are word rather than bit-oriented. These...
Energy-performance tunable circuits enable the user to adjust the energy and performance of a chip after fabrication to suite the particular application, thus increase the overall power efficiency of the chip. Two tunable interconnect architectures are proposed. Pseudo-static interconnect achieves the same performance as static interconnect while consuming only 65% as much energy and provides 2X wider...
The creation and optimization of FPGA accelerators comprising several compute cores and memories are challenging tasks in high performance reconfigurable computing. In this paper, we present the design of such an accelerator for the kth nearest neighbor thinning problem on an XD1000 reconfigurable computing system. The design leverages IMORC, an architectural template and highly versatile on-chip...
In this paper we present a verification platform designed for HyperTransport 3.x (HT3) applications. HyperTransport 3.x is a very low latency and high bandwidth chip-to-chip interconnect which is particularly used in AMDs novel Opteron processor series. As it is an open protocol, a broad application range exists ranging from southbridge chips over closely coupled accelerators to add in cards. Its...
Multi-FPGA systems are widely used for rapid prototyping and logic verification of VLSIs. To implement a huge logic circuit in a multi-FPGA system, the circuit needs to be partitioned into multiple FPGAs. Because of the limited interconnection resources between FPGAs, time-multiplexed I/Os are used for inter-FPGA connections. Due to the large delay of time-multiplexed I/Os, inter-FPGA connections...
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