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Title: OpenSHMEM Implementation of HPCG Benchmark, In: OpenSHMEM 2016: OpenSHMEM and Related Technologies. Enhancing OpenSHMEM for Hybrid Environments

Conference · · OPENSHMEM AND RELATED TECHNOLOGIES: ENHANCING OPENSHMEM FOR HYBRID ENVIRONMENTS
 [1];  [1];  [2]
  1. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States)
  2. Computing and Computational Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee (United States)
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We describe the effort to implement the HPCG benchmark using OpenSHMEM and MPI one-sided communication. Unlike the High Performance LINPACK (HPL) benchmark that places emphasis on large dense matrix computations, the HPCG benchmark is dominated by sparse operations such as sparse matrix-vector product, sparse matrix triangular solve, and long vector operations. The MPI one-sided implementation is developed using the one-sided OpenSHMEM implementation. Preliminary results comparing the original MPI, OpenSHMEM, and MPI one-sided implementations on an SGI cluster, Cray XK7 and Cray XC30 are presented. The results suggest the MPI, OpenSHMEM, and MPI one-sided implementations all obtain similar overall performance but the MPI one-sided implementation seems to slightly increase the run time for multigrid preconditioning in HPCG on the Cray XK7 and Cray XC30.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1567409
Journal Information:
OPENSHMEM AND RELATED TECHNOLOGIES: ENHANCING OPENSHMEM FOR HYBRID ENVIRONMENTS, Vol. 10007; Conference: Workshop on OpenSHMEM and Related Technologies, Baltimore, MD, August 2-4, 2016
Publisher:
Springer International Publishing AG 2016
Country of Publication:
United States
Language:
English

References (6)

Introducing OpenSHMEM: SHMEM for the PGAS community conference January 2010
High-performance conjugate-gradient benchmark: A new metric for ranking high-performance computing systems journal August 2015
HPCG Benchmark Technical Specification report October 2013
S12---The HPC Challenge (HPCC) benchmark suite conference January 2006
Improving performance of openSHMEM reference library by portable PE mapping technique
  • Pophale, Swaroop; Curtis, Tony; Chapman, Barbara
  • Proceedings of the 27th international ACM conference on International conference on supercomputing - ICS '13 https://doi.org/10.1145/2464996.2467279
conference January 2013
SRC: OpenSHMEM library development conference January 2011

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