Optimization Rules for Programming with Collective Operations

@inproceedings{Gorlatch1999OptimizationRF,
  title={Optimization Rules for Programming with Collective Operations},
  author={Sergei Gorlatch and Christoph Wedler and Christian Lengauer},
  booktitle={IPPS/SPDP},
  year={1999}
}
We study how several collective operationslike broadcast, reduction, scan, etc. can be composed efficiently in complex parallel programs. Our specific contributions are: (1) a formal framework for reasoning about collective operations; (2) a set of optimization rules which save communications by fusing several collective operations into one; (3) performance estimates, which guide the application of optimization rules depending on the machine characteristics; (4) a simple case study with machine… CONTINUE READING

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