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Free MPI Implementations

• LAM is Local Area Multicomputer
  • This one works on Linux...
  • http://www.osc.edu/lam.html
• MPICH
  • Very modular, portable, version built on top of P4, etc.
  • http://www.mcs.anl.gov/home/lusk/mpich/
• CHIMP
  • ftp://ftp.epcc.ed.ac.uk/pub/chimp/release/