Basic HTML version of Foils prepared July 6 99

Foil 14 Derived datatypes

From Object serialization for Marshalling Data in a Java Interface to MPI ACM Java Grande Meeting -- June 12-13 99. by Bryan Carpenter,Geoffrey C. Fox, Sung-Hoon Ko, Sang Lim
MPI derived datatypes have two roles:
Non-contiguous data can be transmitted in one message.
MPI_TYPE_STRUCT allows mixed primitive types in one message.
Java binding doesn't support second role. All data come from a homogeneous array of elements (no MPI_Address).

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