A preliminary evaluation of the hardware acceleration of the Cray Gemini interconnect for PGAS languages and comparison with MPI

@article{Shan2011APE,
  title={A preliminary evaluation of the hardware acceleration of the Cray Gemini interconnect for PGAS languages and comparison with MPI},
  author={Hongzhang Shan and Nicholas J. Wright and John Shalf and Katherine A. Yelick and Marcus Wagner and Nathan Wichmann},
  journal={SIGMETRICS Performance Evaluation Review},
  year={2011},
  volume={40},
  pages={92-98}
}
The Gemini interconnect on the Cray XE6 platform provides for lightweight remote direct memory access (RDMA) between nodes, which is useful for implementing partitioned global address space languages like UPC and Co-Array Fortran. In this paper, we perform a study of Gemini performance using a set of communication microbenchmarks and compare the performance of one-sided communication in PGAS languages with two-sided MPI. Our results demonstrate the performance benefits of the PGAS model on… CONTINUE READING