MPI Collective Routines


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  • Many routines:


  • All versions deliver results to all participating processes.
  • V versions allow the chunks to have different sizes.
  • Allreduce, Reduce, ReduceScatter, and Scan take both built-in and user-defined combination functions.



    Up: Collective Communications in MPI Next: Built-in Collective Computation Operations Previous: Available Collective Computation Patterns