Basic HTML version of Foils prepared 19 September 98

Foil 14 To Whom It Gets Sent: Process Identifiers

From MPI Message Passing Interface Computational Science for Simulations -- Fall Semester 1998. by Geoffrey C. Fox, Nancy McCracken
1 1st generation message passing systems used hardware addresses
  • Was inflexible
    • Had to recode on moving to a new machine
  • Was inconvenient
    • Required programmer to map problem topology onto explicit machine connections
  • Was insufficient
    • Didn't support operations over a submachine (e.g., sum across a row of processes)
in Table To:

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