UltraSPARC III : An indepth Study
Sanjeev Dwivedi and Anandha Gopalan
Abstract:
This paper does an indepth study of the UltraSPARC-III
processor from Sun. The UltraSPARC-III is the third processor from Sun
to implement the 64-bit SPARC V9 compliant architecture. This processor
can issue up to four instructions per cycle and can reach clock rates of
greater than 1-Ghz. The performance is improved over the earlier versions
of UltraSPARC by scaling both bandwidth (ILP) and latency. The design
permits high scalability to build systems consisting of thousands of
UltraSPARC-III processors. UltraSPARC-III maintains binary compatibility with
all existing SPARC applications and the Solaris operating system. This
paper also talks about the Visual Instruction Set, which is an extension
to the instruction set of SPARC V9.