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Feature #317

support for in-place redistributions

Added by Thomas Jahns almost 7 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Start date:
03/11/2013
Due date:
% Done:

0%

Estimated time:

Description

Redistributions should also work when input and output arrays are the same object. This needs the following improvements:

  • Detect indices specified in redist construction that have same offsets in input and output on local task.
  • Remove these indices from copy operation, this requires semantics for idxlist element removal (in sync with offset lists).
  • Detect in-place case from array arguments and use buffered send or something similar for communication to prevent overwriting of indices also sent to other processes.

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