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PERFORMANCE ANALYSIS AND COMPARISON OF MPI, OPENMP AND HYBRID NPB-MZ 1 Performance Analysis and Comparison of MPI, OpenMP and Hybrid NPB-MZ

by Héctor J. Machín Machín
"... Abstract—Chip multiprocessors (CMP) are w idely used for high performance computing and are being configured in a hierarchical manner to compose a node in a parallel system. CMP clusters provide a natural programming paradigm for hybrid programs. Can current hybrid parallel programming paradigms suc ..."
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such as hybrid MPI/OpenMP eff iciently exploit the potential offered by such CMP clusters? In this research, w ith increasing the number of processors and problem sizes, we systematically analyze and compare the performance of MPI, OpenMP and hybrid NAS Parallel Benchmark Mult i–Zone (NPB–MZ) on tw o

Communication Characteristics of Message-Passing Applications, and Impact of RDMA on their Performance

by Reza Zamani , 2005
"... With the availability of Symmetric Multiprocessors (SMP) and high-speed interconnects, clusters of SMPs (CLUMPs) have become the ideal platform for performance computing. The performance of applications running on clusters mainly depends on the choice of parallel programming paradigm, workload chara ..."
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the performance of the recently released NAS Multi-Zone (NPB-MZ) benchmarks consisting of BT-MZ, SP-MZ, and LU-MZ, and SMG2000 of the ASCI Purple benchmark. Our studies show that the applications studied have a better MPI performance on clusters of small SMPs interconnected by the Myrinet network. In this thesis

Hybrid MPI/OpenMP Power-Aware Computing

by Dong Li, Bronis R. Supinski, Martin Schulz, Kirk Cameron, Dimitrios S. Nikolopoulos - In Parallel Distributed Processing (IPDPS), 2010 IEEE International Symposium on (April 2010
"... Abstract—Power-aware execution of parallel programs is now a primary concern in large-scale HPC environments. Prior research in this area has explored models and algorithms based on dynamic voltage and frequency scaling (DVFS) and dynamic concurrency throttling (DCT) to achieve power-aware execution ..."
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-efficient execution of realistic applications from the ASC Sequoia and NPB MZ benchmarks. Our new algorithm yields substantial energy savings (4.18 % on average and up to 13.8%) with either negligible performance loss or performance gain (up to 7.2%). Keywords-MPI; OpenMP; performance modeling; poweraware high

1 Strategies for Energy Efficient Resource Management of Hybrid Programming Models

by Dong Li Member, Bronis R. De Supinski, Ieee Martin, Schulz Member, Dimitrios S. Nikolopoulos Senior Member, Kirk W. Cameron Member
"... Abstract—Many scientific applications are programmed using hybrid programming models that use both message-passing and sharedmemory, due to the increasing prevalence of large-scale systems with multicore, multisocket nodes. Previous work has shown that energy efficiency can be improved using softwar ..."
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and novel algorithms based on statistical analysis that anticipate application power and time requirements under different concurrency and frequency configurations. We apply our models and methods to the NPB MZ benchmarks and selected applications from the ASC Sequoia codes. Overall, we achieve substantial
Results 1 - 4 of 4