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Brute-force kNN in a distributed system using MPI

2nd Assignment for 2022-2023 Parallel and Distributed Systems course, Aristotle University of Thessaloniki

Requirements:

  • Recent MPI installation (must support C++17)
  • OpenBLAS

Build:

Run make in the top directory. The executables will appear in folder bin/.

Run:

There are four executables:

  • mpi: The main executable that runs the distributed kNN algorithm.
  • test_impl: Runs a test kNN run on a single process.
  • test_mpi: Runs a test data transmission between MPI processes.
  • generate_dataset: Used to generate a dataset (can be ignored).

The executables will provide information about additional arguments that are needed. For the main "mpi" executable, you may provide the included dataset located in datasets/ folder.