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ARITH
2005
IEEE

The Vector Floating-Point Unit in a Synergistic Processor Element of a CELL Processor

8 years 9 months ago
The Vector Floating-Point Unit in a Synergistic Processor Element of a CELL Processor
The floating-point unit in the Synergistic Processor Element of the 1st generation multi-core CELL Processor is described. The FPU supports 4-way SIMD single precision and integer operations and 2-way SIMD double precision operations. The design required a high-frequency, low latency, power and area efficiency with primary application to the multimedia streaming workloads, such as 3D graphics. The FPU has 3 different latencies, optimizing the performance critical single precision FMA operations, which are executed with a 6-cycle latency at an 11FO4 cycle time. The latency includes the global forwarding of the result. These challenging performance, power, and area goals were achieved through the co-design of architecture and implementation with optimizations at all levels of the design. This paper focuses on the logical and algorithmic aspects of the FPU we developed, to achieve these goals.
Silvia M. Müller, Christian Jacobi 0002, Hwa-
Added 24 Jun 2010
Updated 24 Jun 2010
Type Conference
Year 2005
Where ARITH
Authors Silvia M. Müller, Christian Jacobi 0002, Hwa-Joon Oh, Kevin D. Tran, Scott R. Cottier, Brad W. Michael, Hiroo Nishikawa, Yonetaro Totsuka, Tatsuya Namatame, Naoka Yano, Takashi Machida, Sang H. Dhong
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