Performance and Scalability of OpenMP Programs on the Sun Fire#8482; E25K Throughput Computing Server

摘要

The Sun Fire™ K is the first generation of high-end servers built to the Throughput Computing strategy of Sun Microsystems. The server can scale up to 72 UltraSPARC® Ⅳ processors with Chip MultiThreading (CMT) technology, and execute up to 144 threads simultaneously. The Sun Studio™ 9 software includes compilers and tools that provide support for the C, C++, and Fortran OpenMP Version 2.0 specifications, and that fully exploit the capabilities of the UltraSPARC Ⅳ processor and the E25K server. This paper gives an overview of the Sun Fire E25K server and OpenMP support in the Sun Studio 9 software. The paper presents the latest world-class SPEC OMPL benchmark results on the Sun Fire E25K, and compares these results with those on the UltraSPARC Ⅲ Cu based Sun Fire 15K server. Results show that base and peak ratios for the SPEC OMPL benchmarks increase by approximately 50% on the Sun Fire E25K server, compared to a Sun Fire 15K server with the same number of processors and with higher clock frequency.