Basic HTML version of Foils prepared 19 September 98

Foil 21 What Happened?

From MPI Message Passing Interface Computational Science for Simulations -- Fall Semester 1998. by Geoffrey C. Fox, Nancy McCracken
Each library was self-consistent
  • Correctly handled all messages it knew about
Interaction between the libraries killed them
  • "Intercepting" a message broke both
The lesson:
  • Don't take messages from strangers
Other examples teach other lessons:
  • Clean up your own messages
  • Don't use other libraries' tags
  • Etc. ...

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