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<div class=Section1>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We have an architecture where we have a single process (A),
with multiple send threads, that is parsing a data file and parcelling it out,
using a load-balancing scheme, to n different processing nodes (B1 &#8211; Bn).&nbsp;
These B nodes each also have a dedicated receive thread associated to the A
node by means of an intercommunicator.&nbsp; A similar setup is used on the backend
where the B nodes have dedicated send threads all tied via intercommunicators
to receive threads in node C where the processed data is all collected and put
into our output format.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Our questions are:<o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><span
style='mso-list:Ignore'>1)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp; </span></font></span></span></font><![endif]><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Is there a
limit to the number of intercommunicators you can have and, if so, are we going
over that limit if we have 24 B nodes</span></font><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo2'><![if !supportLists]><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><span
style='mso-list:Ignore'>2)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font></span></span></font><![endif]><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Would a
single machine (our cluster is down at the moment) be able to handle all the
MPI communications for this system (for testing purposes only, until our
cluster is back up)?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><img width=1009 height=787 id="_x0000_i1026"
src="cid:image002.jpg@01C654A9.4A321440"><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><em><i><font size=4 face="Times New Roman"><span
style='font-size:13.5pt'>Jeff Yoder</span></font></i></em><i><span
style='font-style:italic'><br>
</span></i><em><i><font face="Trebuchet MS"><span style='font-family:"Trebuchet MS"'>ITT
Industries Space Systems LLC</span></font></i></em><i><font size=2><span
style='font-size:10.0pt;font-style:italic'><br>
</span></font></i><em><i><font face="Trebuchet MS"><span style='font-family:
"Trebuchet MS"'>Software </span></font></i></em><i><font size=2
face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS";
font-style:italic'>Engineering</span></font></i><i><font size=2><span
style='font-size:10.0pt;font-style:italic'><br>
</span></font></i><em><i><font face="Trebuchet MS"><span style='font-family:
"Trebuchet MS"'>(260)451-6508</span></font></i></em><em><i><font size=2
face="Times New Roman"><span style='font-size:10.0pt'><o:p></o:p></span></font></i></em></p>

<p class=MsoNormal><em><i><u><font size=1 color=blue face="Times New Roman"><span
style='font-size:7.5pt;color:blue'><a href="mailto:jeffrey.yoder@itt.com"><span
style='font-style:normal'>jeffrey.yoder@itt.com</span></a></span></font></u></i></em><span
class=MsoHyperlink><u><font color=blue><o:p></o:p></font></u></span></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>&nbsp;</span></font><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><em><i><font size=3 face=PMingLiU><span style='font-size:
12.0pt;font-family:PMingLiU'>The most likely way for the world to be destroyed,
most experts agree,</span></font></i></em><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><em><i><font size=3 face=PMingLiU><span style='font-size:
12.0pt;font-family:PMingLiU'>is by accident. That's where we come in; we're
computer professionals.</span></font></i></em><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><em><i><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>We cause accidents. - Nathaniel Borenstein</span></font></i></em><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><img border=0 width=106 height=120 id="_x0000_i1025"
src="cid:image003.jpg@01C654A9.4A321440" align=baseline></span></font><o:p></o:p></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

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