Title :
Comparison of MPI benchmark programs on an SGI Altix ccNUMA shared memory machine
Author :
Hamid, Nor Asilah Wati Abdul ; Coddington, Paul ; Vaughan, Francis
Author_Institution :
Sch. of Comput. Sci., Adelaide Univ., SA
Abstract :
The results produced by five different MPI benchmark programs on an SGI Altix 3700 are analyzed and compared. There are significant differences in the results for some MPI operations. We investigate the reasons for these discrepancies, which are due to differences in the measurement techniques, implementation details and default configurations of the different benchmarks. The variation in results on the Altix are generally much greater than on a distributed memory machine, due primarily to the ccNUMA architecture and the importance of cache effects, as well as some implementation details of the SGI MPI libraries
Keywords :
benchmark testing; cache storage; message passing; shared memory systems; MPI benchmark program; SGI Altix 3700; SGI MPI library; cache effects; ccNUMA architecture; distributed memory machine; message passing interface; nonuniform memory architecture; shared memory machine; Australia; Computer architecture; Computer science; Concurrent computing; High performance computing; Libraries; Measurement techniques; Memory architecture; Size measurement; Time measurement;
Conference_Titel :
Parallel and Distributed Processing Symposium, 2006. IPDPS 2006. 20th International
Conference_Location :
Rhodes Island
Print_ISBN :
1-4244-0054-6
DOI :
10.1109/IPDPS.2006.1639631
