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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Siavash,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>A couple of reasons for this statement:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> The 2.2 standard was an update to the 2.0 standard which
predates the 2006 paper you referenced. 2.2 only introduced new functions
where there was an urgent need. New features are intended for the forthcoming
3.0.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> The resource control paragraph is in the context of process
creation and my quick 1 minute scan of the paper you referenced indicates that
it is discussing reconfiguring communication and does not talk about dynamic
processes. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks,<br>
Dave Solt <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mpi-22-bounces@lists.mpi-forum.org [mailto:mpi-22-bounces@lists.mpi-forum.org] <b>On
Behalf Of </b>siavash ghiasvand<br>
<b>Sent:</b> Wednesday, June 30, 2010 2:57 PM<br>
<b>To:</b> mpi-22@lists.mpi-forum.org<br>
<b>Subject:</b> [Mpi-22] reConfigurable MPI<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'>Hi,</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'>In MPI22
Standard document [<a
href="http://www.mpi-forum.org/docs/mpi-2.2/mpi22-report.pdf" target="_blank"><b><span
style='color:#3333FF'>1</span></b></a>] on page 305 lines 27-30 we can see this
paragraph:</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p>
</div>
<div>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-right:0in'>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:#666666'>The
MPI Forum decided not to address resource control because it was not able to</span><o:p></o:p></p>
</blockquote>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-right:0in'>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:#666666'>design
a portable interface that would be appropriate for the broad spectrum of
existing</span><o:p></o:p></p>
</blockquote>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-right:0in'>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:#666666'>and
potential resource and process controllers. Resource control can encompass a
wide</span><o:p></o:p></p>
</blockquote>
<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-right:0in'>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:#666666'>range
of abilities, including adding and deleting nodes from a virtual parallel
machine, ...</span><o:p></o:p></p>
</blockquote>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'>Which means,
an MPI-based cluster is not reconfigurable at run time! but in EuroPVM/MPI 2006
a reconfigurable version of MPI for HPC clusters was described by University of
New Mexico Scalable Systems Lab [<a
href="http://www.pvmmpi06.org/talks/CommProt/venkata.pdf" target="_blank"><b><span
style='color:#3333FF'>2</span></b></a>] and they show that their implementation
will enhance performance (the main goal of MPI). So, why in MPI22 standard
"<i>The MPI forum decided not to address resource control</i>" which
can improve both flexibility and performance of an MPI-based cluster?</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'>Ref:</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'><a
href="http://www.springerlink.com/content/w588601267363238/">MPI/CTP: A
Reconfigurable MPI for HPC Applications</a></span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'> <br
clear=all>
</span><o:p></o:p></p>
</div>
<p class=MsoNormal>Regards,<br>
Siavash<o:p></o:p></p>
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