When not to use MPI

• Regular computation matches HPF

  • But see PETSc/HPF comparison (ICASE 97-72)

• Solution (e.g., library) already exists

  • http://www.mcs.anl.gov/mpi/libraries.html

• Require Fault Tolerance

  • Sockets

• Distributed Computing

  • CORBA, DCOM, etc.

Notes: