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<div class=Section1>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'>I’m using </span><span
lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#4F81BD'>RC
QP connection but data in the buffer on receive side changes without any
actions (ibv_post_recv) on receive side. I’m tried to use multiple
buffers to send/recv data frames but on receive side only ONE buffer (first
registered with ibv_reg_mr) works. I don’t found any examples where used a
pool of buffers for receive side (for sender it is). Would you help me in such
things?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#4F81BD'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#4F81BD'>Thanks.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#4F81BD'>Zh.Sergey<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<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"'> Leonid Keller
[mailto:leonid@mellanox.co.il] <br>
<b>Sent:</b> Wednesday, November 25, 2009 11:25 AM<br>
<b>To:</b> Сергей Жуков; Tzachi Dar<br>
<b>Cc:</b> ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: [ofw] Need code examples<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>It's not a real application.</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>It's a performance test, demonstrating a possibilty of IB HW to
send data at > 4GBps.</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>That's why it is using only one buffer.</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>That's why it doesn't care about synchronization.</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>But you may write a real application working almost as fast as this
one.</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>You will have to use a pool of buffers and RC QP connection.</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'>If the receiver side won't manage to read the data, it won't post
receive WQEs, making thereby a back pressure on the sender.</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=EN-US
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
ofw-bounces@lists.openfabrics.org [mailto:ofw-bounces@lists.openfabrics.org] <b>On
Behalf Of </b>?????? ?????<br>
<b>Sent:</b> Wednesday, November 25, 2009 9:21 AM<br>
<b>To:</b> Tzachi Dar<br>
<b>Cc:</b> ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: [ofw] Need code examples</span><span lang=EN-US
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#4F81BD'>Hello </span>Tzachi<span
lang=EN-US>!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I have tried to use sources from latest SVN
and have deal with send_bw example. In this example I have inserted 2 bytes
frame counter for receiving control.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I found out that on receive side there is
no syncronization between write/read operations. Sending side writing frames in
the shared memory<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>(ctx->buff) on receive side while
previous frames are not read yet.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Thanks.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Zh.Sergey.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b>From:</b> Tzachi Dar [mailto:tzachid@mellanox.co.il] <br>
<b>Sent:</b> Thursday, November 19, 2009 4:06 PM<br>
<b>To:</b> Сергей Жуков<br>
<b>Subject:</b> RE: [ofw] Need code examples<o:p></o:p></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal>Please let me know if you need more help.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Thanks<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Tzachi<o:p></o:p></p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'>
<p class=MsoNormal><o:p> </o:p></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=EN-US>From:</span></b><span
lang=EN-US> ofw-bounces@lists.openfabrics.org
[mailto:ofw-bounces@lists.openfabrics.org] <b>On Behalf Of </b>Leonid Keller<br>
<b>Sent:</b> Thursday, November 19, 2009 11:28 AM<br>
<b>To:</b> Сергей Жуков<br>
<b>Cc:</b> ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: [ofw] Need code examples<o:p></o:p></span></p>
<div>
<p class=MsoNormal>I meant openfabric stack.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>As Sean mentioned, it is found
under svn://openib.tc.cornell.edu/gen1/trunk.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>We provide usually only binaries, but we have the same
sources as openfabric stack, so you can look there.<o:p></o:p></p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'>
<p class=MsoNormal><o:p> </o:p></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=EN-US>From:</span></b><span
lang=EN-US> Сергей Жуков [mailto:zhukoff79@mail.ru] <br>
<b>Sent:</b> Thursday, November 19, 2009 11:15 AM<br>
<b>To:</b> Leonid Keller<br>
<b>Cc:</b> ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: [ofw] Need code examples<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Thanks but where I
can get it?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>In my distrib pack (</span><span
lang=EN-US>MLNX_WinOF_wnet_x64_2_0_3<span style='color:#1F497D'>) there is no
such dirs.<o:p></o:p></span></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>How I cat get
perftests from </span><span lang=EN-US style='font-size:10.0pt'>IB
source tree</span><span lang=EN-US style='color:#1F497D'>?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span style='font-size:10.0pt'>From:</span></b><span
style='font-size:10.0pt'> Leonid Keller [mailto:leonid@mellanox.co.il] <br>
<b>Sent:</b> Thursday, November 19, 2009 12:06 PM<br>
<b>To:</b> Сергей Жуков; ofw@lists.openfabrics.org<br>
<b>Subject:</b> RE: [ofw] Need code examples<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt'>tools\perftests or
test\perftest in IB source tree</span><span style='font-size:12.0pt'><o:p></o:p></span></p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'>
<p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p>
<div class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=EN-US
style='font-size:10.0pt'>From:</span></b><span lang=EN-US style='font-size:
10.0pt'> ofw-bounces@lists.openfabrics.org
[mailto:ofw-bounces@lists.openfabrics.org] <b>On Behalf Of </b>?????? ?????<br>
<b>Sent:</b> Thursday, November 19, 2009 8:51 AM<br>
<b>To:</b> ofw@lists.openfabrics.org<br>
<b>Subject:</b> [ofw] Need code examples</span><span lang=EN-US
style='font-size:12.0pt'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Hello!<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Is there developers who wrote applications
with RDMAoIB support and can help me in such things? I need for source examples
that do send/recv with high perfomance and throughoutput on IB.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Best regards.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Zh. Sergey<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt'><o:p> </o:p></span></p>
<table class=MsoNormalTable border=0 cellpadding=0 width=400 style='width:300.0pt'>
<tr>
<td style='padding:.75pt .75pt .75pt .75pt'>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></div>
<p style='line-height:11.0pt'><span style='font-size:9.0pt'><a
href="http://www.avast.com">avast! Antivirus</a>: Ishodjashaja soobshenie
chistoje. <o:p></o:p></span></p>
<p style='line-height:11.0pt'><span style='font-size:8.0pt'>Virusnaja baza
dannih (VPS): 091118-1, 18.11.2009<br>
Provereno: 19.11.2009 9:50:43<br>
<span style='color:gray'>avast! - (c) 1988-2009 ALWIL Software.</span><o:p></o:p></span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p>
</blockquote>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt'><o:p> </o:p></span></p>
<table class=MsoNormalTable border=0 cellpadding=0 width=400 style='width:300.0pt'>
<tr>
<td style='padding:.75pt .75pt .75pt .75pt'>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></div>
<p style='line-height:11.0pt'><span style='font-size:9.0pt'><a
href="http://www.avast.com">avast! Antivirus</a>: Vhodjashaja soobshenie
chistoje. <o:p></o:p></span></p>
<p style='line-height:11.0pt'><span style='font-size:8.0pt'>Virusnaja baza
dannih (VPS): 091118-1, 18.11.2009<br>
Provereno: 19.11.2009 12:06:47<br>
<span style='color:gray'>avast! - (c) 1988-2009 ALWIL Software.</span><o:p></o:p></span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
<table class=MsoNormalTable border=0 cellpadding=0 width=400 style='width:300.0pt'>
<tr>
<td style='padding:.75pt .75pt .75pt .75pt'>
<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p style='mso-line-height-alt:11.0pt'><a href="http://www.avast.com">avast!
Antivirus</a>: Ishodjashaja soobshenie chistoje. <o:p></o:p></p>
<p style='mso-line-height-alt:11.0pt'>Virusnaja baza dannih (VPS): 091118-1,
18.11.2009<br>
Provereno: 19.11.2009 12:14:52<br>
<span style='color:gray'>avast! - (c) 1988-2009 ALWIL Software.</span><o:p></o:p></p>
</td>
</tr>
</table>
<p class=MsoNormal><o:p> </o:p></p>
</blockquote>
</blockquote>
<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
<table class=MsoNormalTable border=0 cellpadding=0 width=400 style='width:300.0pt'>
<tr>
<td style='padding:.75pt .75pt .75pt .75pt'>
<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p style='mso-line-height-alt:11.0pt'><a href="http://www.avast.com">avast!
Antivirus</a>: Vhodjashaja soobshenie chistoje. <o:p></o:p></p>
<p style='mso-line-height-alt:11.0pt'>Virusnaja baza dannih (VPS): 091119-0,
19.11.2009<br>
Provereno: 19.11.2009 16:09:09<br>
<span style='color:gray'>avast! - (c) 1988-2009 ALWIL Software.</span><o:p></o:p></p>
</td>
</tr>
</table>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<table class=MsoNormalTable border=0 cellpadding=0 width=400 style='width:300.0pt'>
<tr>
<td style='padding:.75pt .75pt .75pt .75pt'>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p style='line-height:11.0pt'><span style='font-size:9.0pt;font-family:"Verdana","sans-serif"'><a
href="http://www.avast.com">avast! Antivirus</a>: Ishodjashaja soobshenie
chistoje. <o:p></o:p></span></p>
<p style='line-height:11.0pt'><span style='font-size:8.0pt;font-family:"Verdana","sans-serif"'>Virusnaja
baza dannih (VPS): 091124-1, 24.11.2009<br>
Provereno: 25.11.2009 10:21:05<br>
<span style='color:gray'>avast! - (c) 1988-2009 ALWIL Software.</span><o:p></o:p></span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
</blockquote>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
<table class=MsoNormalTable border=0 cellpadding=0 width=400 style='width:300.0pt'>
<tr>
<td style='padding:.75pt .75pt .75pt .75pt'>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p style='line-height:11.0pt'><span style='font-size:9.0pt;font-family:"Verdana","sans-serif"'><a
href="http://www.avast.com">avast! Antivirus</a>: Vhodjashaja soobshenie
chistoje. <o:p></o:p></span></p>
<p style='line-height:11.0pt'><span style='font-size:8.0pt;font-family:"Verdana","sans-serif"'>Virusnaja
baza dannih (VPS): 091124-1, 24.11.2009<br>
Provereno: 25.11.2009 11:36:24<br>
<span style='color:gray'>avast! - (c) 1988-2009 ALWIL Software.</span><o:p></o:p></span></p>
</td>
</tr>
</table>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
</div>
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<P style="FONT: 9pt/11pt verdana"><a href="http://www.avast.com">avast! Antivirus</a>: Ishodjashaja soobshenie chistoje.
<P style="FONT: 8pt/11pt verdana">Virusnaja baza dannih (VPS): 091125-0, 25.11.2009<BR>Provereno: 25.11.2009 11:56:22<BR><FONT color=gray>avast! - (c) 1988-2009 ALWIL Software.</FONT></P>
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