Low-Level Monitoring and High-Level Tuning of UPC on CC-NUMA Architectures

Abstract

We experiment with various techniques of monitoring and tuning UPC programs while porting NAS NPB benchmark using the recently developed GCC-SGI UPC compiler on the Origin O3800 NUMA machine. The performance of the NAS NPB on the SGI NUMA environment is compared to previous NAS NPB statistics on a Compaq multiprocessor. In fact, the SGI NUMA environment has… (More)

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