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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi George,<br>
<br>
I know MPI_Get_elements_x (). But Page 483 claims:<br>
<br>
These functions modify the opaque part of status so that a call to<br>
MPI_GET_ELEMENTS or MPI_GET_ELEMENTS_X will return count. MPI_GET_COUNT<br>
will return a compatible value.<br>
<br>
This will not work for large MPI_Count values provided by MPI_SET_ELEMENTS_X<br>
(i.e. MPI_UNDEFINED is returned by MPI_Get_count() in significant use of MPI_SET_ELEMENT_X).<br>
And Page 114 says that function MPI_Get_count has a different behavior than<br>
MPI_GET_ELEMENTS/MPI_GET_ELEMENTS_X. Thus, MPI_GET_COUNT is not obsolete<br>
and application has to develop a separate version of MPI_Get_count_x() if MPI_SET_ELEMENT_X<br>
might be used in the application or a library.<br>
<br>
Hubert<br>
<br>
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<div style="direction: ltr;" id="divRpF484992"><font color="#000000" face="Tahoma" size="2"><b>From:</b> mpi-comments-bounces@lists.mpi-forum.org [mpi-comments-bounces@lists.mpi-forum.org] on behalf of George Bosilca [bosilca@eecs.utk.edu]<br>
<b>Sent:</b> Friday, August 31, 2012 2:26 PM<br>
<b>To:</b> Comments on the MPI Standard<br>
<b>Subject:</b> Re: [Mpi-comments] MPI_Get_count_x<br>
</font><br>
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<div>MPI_Get_elements_x, chap Datatypes page 114 (current make cleandoc).
<div><br>
</div>
<div> george.</div>
<div><br>
<div>
<div>On Aug 31, 2012, at 13:45 , Hubert Ritzdorf <<a href="mailto:Hubert.Ritzdorf@EMEA.NEC.COM" target="_blank">Hubert.Ritzdorf@EMEA.NEC.COM</a>> wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div style="font-family:'Courier New'; font-size:medium; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; orphans:2; text-indent:0px; text-transform:none; white-space:normal; widows:2; word-spacing:0px">
<div style="direction:ltr; font-family:Tahoma; font-size:10pt">Hi,<br>
<br>
I think, that function<span class="Apple-converted-space"> </span><br>
<br>
MPI_Get_count_x (const MPI_Status *status, MPI_Datatype datatype, MPI_Count *count)<br>
<br>
is missing. After use of function MPI_Status_set_elements_x, MPI_Get_count is possibly not able<br>
to return a compatible value. This is contradictory to Page 483, Lines 22-33.<br>
<br>
Hubert<br>
<br>
<br>
<br>
</div>
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