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<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Stan,<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>>About 9 months ago
Voltaire was slated to start work on a connected mode IPoIB for Windows<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>Actually this task has
been left unassigned.<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>See attached, we committed
only to the yellow ones.<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>While the green light has
been dedicated to MLNX, the light blue has been left open… <o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Yaron<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal dir=LTR><font size=1 color=blue
face="Copperplate Gothic Light"><span style='font-size:9.0pt;font-family:"Copperplate Gothic Light";
color:blue'>___________________________________________________________</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><st1:PersonName w:st="on"><font size=1 color=blue
face="Copperplate Gothic Light"><span style='font-size:9.0pt;font-family:"Copperplate Gothic Light";
color:blue'>Yaron Segev</span></font></st1:PersonName><font size=1 color=blue
face="Copperplate Gothic Light"><span style='font-size:9.0pt;font-family:"Copperplate Gothic Light";
color:blue'> | +972-9-9717650 (o) | +972-54-4996631 (m)<o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=1 color=blue
face="Copperplate Gothic Light"><span style='font-size:9.0pt;font-family:"Copperplate Gothic Light";
color:blue'>Vice President, Software Development</span></font><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=1 color=gray
face="Copperplate Gothic Light"><span style='font-size:9.0pt;font-family:"Copperplate Gothic Light";
color:gray'>Voltaire – <u>The Grid Backbone <o:p></o:p></u></span></font></p>
<p class=MsoNormal dir=LTR><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'><a href="http://www.voltaire.com/"
title="http://www.voltaire.com/"><font size=1 face="Copperplate Gothic Light"><span
style='font-size:9.0pt;font-family:"Copperplate Gothic Light"'>www.voltaire.com</span></font></a></span></font><font
size=1 color=blue face="Copperplate Gothic Light"><span style='font-size:9.0pt;
font-family:"Copperplate Gothic Light";color:blue'>______________________________________________</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
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<p class=MsoNormal dir=LTR><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal dir=LTR><b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> ofw-bounces@lists.openfabrics.org
[mailto:ofw-bounces@lists.openfabrics.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Smith, Stan<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, October 11, 2007
5:00 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Greg Rodgers;
ofw@lists.openfabrics.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [ofw] WinOF
interoperable with Linux OpenIB</span></font><o:p></o:p></p>
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<p class=MsoNormal dir=LTR><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>Hello,</span></font><o:p></o:p></p>
<p class=MsoNormal dir=LTR><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'> As Sean pointed
out, the IB connection manager is the issue; different CM connection protocols
between Linux and Windows. The DAT/DAPL sides, if they could get connected,
would have no problems exchanging messages. Once upon a time, in a land, far,
far away....an early MPI/DAPL kludge was setup such that a TCP/IP socket
connection was used to exchange IB Queue Pair (QP) information then used to
link remote QPs; not recommended or supported in Windows.</span></font><o:p></o:p></p>
<p class=MsoNormal dir=LTR><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>About 9 months ago
Voltaire was slated to start work on a connected mode IPoIB for Windows (64K
MTU); no telemetry since then.</span></font><o:p></o:p></p>
<p class=MsoNormal dir=LTR><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>So sadly 2K MTU IPoIB is
about the best there is at this juncture.</span></font><o:p></o:p></p>
<p class=MsoNormal dir=LTR><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal dir=LTR><font size=2 color=blue face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:blue'>stan.</span></font><o:p></o:p></p>
<p class=MsoNormal dir=LTR><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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size=3 face="Times New Roman"><span style='font-size:12.0pt'>
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<p class=MsoNormal dir=LTR style='margin-bottom:12.0pt'><b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
ofw-bounces@lists.openfabrics.org [mailto:ofw-bounces@lists.openfabrics.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Greg Rodgers<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, October 10, 2007
6:42 PM<br>
<b><span style='font-weight:bold'>To:</span></b> ofw@lists.openfabrics.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [ofw] WinOF interoperable
with Linux OpenIB</span></font><o:p></o:p></p>
<p class=MsoNormal dir=LTR><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><br>
<br>
</span></font><font size=2 face=sans-serif><span style='font-size:10.0pt;
font-family:sans-serif'>We would like to link a Windows machine to a Linux
machine with InfiniBand and use DAPL. IPoIB is not fast enough. On
the Linux side we have OFED 1.2 with RHEL 5.1. I am new to OpenIB
but I hear that Windows would have a problem with RDMA cm. Can anyone
give me some high level advice before I get the hardware? The Windows
machine will be Windows 2003 R2 with Mellonox SDR card. </span></font><br>
<br>
<font size=2 face=sans-serif><span style='font-size:10.0pt;font-family:sans-serif'>Thank
you. </span></font><br>
<br>
<font size=2 face=sans-serif><span style='font-size:10.0pt;font-family:sans-serif'>Greg
Rodgers</span></font><o:p></o:p></p>
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