3367

High Performance Computing Using MPI and OpenMP on Multi-core Parallel Systems

Haoqiang Jin, Dennis Jespersen, Piyush Mehrotra, Rupak Biswas
NAS Division, NASA Ames Research Center, Moffett Field, CA 94035
Parallel Computing (02 March 2011)

@article{jin2011high,

   title={High Performance Computing Using MPI and OpenMP on Multi-core Parallel Systems},

   author={Jin, H. and Jespersen, D. and Mehrotra, P. and Biswas, R.},

   journal={Parallel Computing},

   issn={0167-8191},

   year={2011},

   publisher={Elsevier}

}

Download Download (PDF)   View View   Source Source   

727

views

The rapidly increasing number of cores in modern microprocessors is pushing the current high performance computing (HPC) systems into the petascale and exascale era. The hybrid nature of these systems – distributed memory across nodes and shared memory with non-uniform memory access within each node – poses a challenge to application developers. In this paper, we study a hybrid approach to programming such systems – a combination of two traditional programming models, MPI and OpenMP. We present the performance of standard benchmarks from the multi-zone NAS Parallel Benchmarks and two full applications using this approach on several multi-core based systems including an SGI Altix 4700, an IBM p575+ and an SGI Altix ICE 8200EX. We also present new data locality extensions to OpenMP to better match the hierarchical memory structure of multi-core architectures.
No votes yet.
Please wait...

* * *

* * *

HGPU group © 2010-2017 hgpu.org

All rights belong to the respective authors

Contact us: