Scheduling Problems in Parallel Query Optimization

@inproceedings{Chekuri1995SchedulingPI,
  title={Scheduling Problems in Parallel Query Optimization},
  author={Chandra Chekuri and Waqar Hasan and Rajeev Motwani},
  booktitle={PODS},
  year={1995}
}
We introduce a class of novel multiprocessor scheduling problems that arise in the optimization of SQL queries for parallel machines. These consist of scheduling a tree of interdependent communicating operators while exploiting both inter-operator and intra-operator parallelism. We develop algorithms for the specific problem of scheduling a Pipelined Operator Tree in which all operators run in parallel using inter-operator parallelism. Weights associated with nodes and edges represent… CONTINUE READING
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