Title :
Green HPC: MPI vs. OpenMP on a shared memory system
Author :
Krpic, Z. ; Martinovic, G. ; Crnkovic, I.
Author_Institution :
Fac. of Electr. Eng., J.J. Strossmayer Univ. of Osijek, Osijek, Croatia
Abstract :
A power consumption of a high performance computer (HPC) system has been an issue lately. Many programming techniques are still relying on performance gain, but only few of them are concerning energy footprint of the increased computing power. MPI and OpenMP are considered as a core scientific HPC programming libraries for distributed-memory and shared-memory computer systems respectively. Each of them brings performance when used on a parallel system, but there are dissimilarities in their performance per watt ratio. The key is to find the best appliance for each of them on a shared-memory computer system.
Keywords :
distributed shared memory systems; environmental factors; message passing; power aware computing; power consumption; MPI; OpenMP; distributed-memory system; green HPC; high performance computer system; parallel system; power consumption; shared memory system; Computers; Green products; Message systems; Power demand; Power measurement; Programming; High performance computing; green computing; parallel programming;
Conference_Titel :
MIPRO, 2012 Proceedings of the 35th International Convention
Conference_Location :
Opatija
Print_ISBN :
978-1-4673-2577-6
