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Task #332

closed

allow empty messages in exchange routines

Added by Joerg Behrens about 8 years ago. Updated about 8 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Start date:
07/31/2014
Due date:
% Done:

0%

Estimated time:

Description

redists should be able to pass emtpy messages (struct Xt_redist_msg; with datatype = MPI_DATATYPE_NULL and rank = -1) to exchange routines.

These messages are just "place-holders" and should not trigger an actual exchange.

This should result in simple but general exchange routines that supports various message orders.

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