Improving the Performance of Multiprogrammed Parallel Workloads in Origin2000 Systems
Xavier Martorell, Eduard Ayguadé, Jesús Labarta, Nacho Navarro, Departament d'Arquitectura de Computadors · 2000
In this paper, we present the evaluation of the Nanos parallel execution environment and its comparison with the native SGIMP environment with respect the execution of multiprogrammed parallel workloads. The Nanos environment is being developed in the NANOS ESPRIT Project. It considers the SGI Origin2000 machine as its main target for improving the parallel execution of applications. The results show that the Nanos environment improves overall throughput by 80% and reduces the average execution time of the applications to half the time obtained by the standard SGIMP environment. 1. Introduction Current parallel shared-memory multiprocessors are complex machines, where a large number of architectural aspects should have to be simultaneously addressed in order to achieve high performance. The quick evolution of parallel machines is being followed by the evolution of the parallel execution environments to take advantage of such new architectural characteristics. Both the user and...