Performance of a QCD code on the NCUBE hypercube

Authors:
D. W. Walker
Affiliations:
Caltech Concurrent Computation Program, California Institute of Technology, 206-49, Pasadena, CA
Venue:
C3P Proceedings of the third conference on Hypercube concurrent computers and applications: Architecture, software, computer systems, and general issues - Volume 1
Year:
1988

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Abstract

The performance of a pure gauge QCD code on the NCUBE hypercube is analysed. Both load imbalance and communication contribute to the concurrent overhead, with the load imbalance term becoming dominant for sufficiently large hypercubes. The performance model is compared with timings measured on the NCUBE using both the standard and fast versions of the CrOS III communication systems.