What's New in MPI 2.0

MPI version 2.0 adds new features that are designed to support additional events, data requests and diverse event filtering needs.

Event-specific Interfaces

MPI version 2.0 defines an Observer interface for each MPI event, rather than a generic IEvent interface to be used for all events. Each observer has its own HandleEvent callback function which delivers event-specific data.

For more information, refer to the MPI Event Handling section.

Data Request Functions

MPI version 2.0 defines a Data Request function for each type of MPI element (class, method, thread, object, etc). These data request functions replace the monolithic DataRequest function in MPI version 1.0 and provide a simpler interface for obtaining data.

For more information, refer to the Data Requests section.

Event Filters

MPI version 2.0 introduces a new concept called Event Filters. Event Filters replace the ISelectiveEvent filtering mechanism in MPI version 1.0.

For more information, refer to the Event Groups and Filters section.