[mpi-21] Incorrect use of MPI_IN_PLACE in description of MPI_ALLGATHER and MPI_ALLGATHERV

Rolf Rabenseifner rabenseifner at [hidden]
Fri Jan 18 10:17:44 CST 2008



This is a proposal for MPI 2.1, Ballot 4.

This is a follow up to:
  Incorrect use of MPI_IN_PLACE in description of MPI_ALLGATHER and MPI_ALLGATHERV 
  http://www.cs.uiuc.edu/homes/wgropp/projects/parallel/MPI/mpi-errata/discuss/gatherinplace/

Jeff is right with his error report.
I propose to remove the wrong text, because this (wrong) analogy is not 
needed for understanding the meaning of "in place" in MPI_ALLGATHER
and MPI_ALLGATHERV.

Proposal for MPI 2.1, Ballot 4:
-------------------------------

On MPI-2.0, page 159, lines 23-28, remove the text
     "Specifically, ... 
      ... n-1."

On MPI-2.0, page 158, lines 25-31, remove the text
     "Specifically, ... 
      ... n-1."

-------------------------------
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Best regards
Rolf

Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner_at_[hidden]
High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530
University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832
Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner
Nobelstr. 19, D-70550 Stuttgart, Germany . (Office: Allmandring 30)



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