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Fpga-based prototype of a pram-on-chip processor

8 years 5 months ago
Fpga-based prototype of a pram-on-chip processor
PRAM (Parallel Random Access Model) has been widely regarded a desirable parallel machine model for many years, but it is also believed to be "impossible in reality." As the new billion-transistor processor era begins, the eXplicit Multi-Threading (XMT) PRAM-On-Chip project is attempting to design an on-chip parallel processor that efficiently supports PRAM algorithms. This paper presents the first prototype of the XMT architecture that incorporates 64 simple in-order processors operating at 75MHz. The microarchitecture of the prototype is described and the performance is studied with respect to some micro-benchmarks. Using cycle accurate emulation, the projected performance of an 800MHz XMT ASIC processor is compared with AMD Opteron 2.6GHz, which uses similar area as would a 64processor ASIC version of the XMT prototype. The results suggest that an only 800MHz XMT ASIC system outperforms AMD Opteron 2.6GHz, with speedups ranging be
Xingzhi Wen, Uzi Vishkin
Added 12 Oct 2010
Updated 12 Oct 2010
Type Conference
Year 2008
Where CF
Authors Xingzhi Wen, Uzi Vishkin
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