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<div><font color="#1F497D">During our meeting today we decided that MPI_Count should be at least as large as an MPI_Aint. We already had the restriction that it had to be as large as a C/Fortran integer. We want both restrictions (they cannot be combined
because there is no guarantee that MPI_Aint > integer).</font></div>
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<div><font color="#1F497D">I’ll throw this out as a starting point for discussion:</font></div>
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<div><font color="#1F497D">2.5.8 Last sentence change to:</font></div>
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<div><font color="#1F497D">The size of the MPI_Count type is determined by the MPI implementation</font></div>
<div><font color="#1F497D">with the restriction that it must be minimally capable of encoding a C int and Fortran INTEGER </font></div>
<div><font color="#1F497D">and any value that may be stored in an MPI_Aint type.</font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">Rational thingy:</font></div>
<div><font color="#1F497D"> </font></div>
<div><font color="#1F497D">MPI_Count is used to communicate both the number of elements in a datatype and the bounds of a datatype. </font></div>
<div><font color="#1F497D">The number of elements in a datatype is specified at creation time using a C int or Fortran INTEGER. The bounds</font></div>
<div><font color="#1F497D">may be specified using an MPI_Aint. </font></div>
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<div><font face="Calibri, sans-serif" color="#1F497D"> </font></div>
<div><font color="#1F497D">So, I was especially brief here. I did not want to get into the “new” routines vs. “old routines”, but if you attempt to go into more depth than what I said, you will inevitably end up going down that path. I can think of a thousand
ways not to say it, but its hard to come up with a good way.</font></div>
<div><font color="#1F497D">Dave </font></div>
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