Basic HTML version of Foils prepared 19 September 98

Foil 22 Solution to the Tag Problem

From MPI Message Passing Interface Computational Science for Simulations -- Fall Semester 1998. by Geoffrey C. Fox, Nancy McCracken
1 Generalize tag to tag and communicator
2 A separate communication context for each family of messages
  • Used for queuing and matching
  • This is the context for communicators
3 No wild cards allowed in communicator, for security
4 Communicator allocated by the system, for security
5 Tags retained for use within a context
  • wild cards OK for tags
in Table To:

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