ALCF MPI Benchmarks: Understanding Machine-Specific Communication Behavior

  title={ALCF MPI Benchmarks: Understanding Machine-Specific Communication Behavior},
  author={Vitali A. Morozov and Jiayuan Meng and Venkatram Vishwanath and Jeff R. Hammond and Kalyan Kumaran and Michael E. Papka},
  journal={2012 41st International Conference on Parallel Processing Workshops},
As systems grow larger and computation is further spread across nodes, efficient data communication is becoming increasingly important to achieve high throughput and low power consumption for high performance computing systems. However, communication efficacy not only depends on application-specific communication patterns, but also on machine-specific communication subsystems, node architectures, and even the runtime communication libraries. In fact, different hardware systems lead to different… CONTINUE READING