<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2900.2883" name=GENERATOR></HEAD>
<BODY>
<DIV dir=ltr align=left><SPAN class=558160008-05062006><FONT face=Arial
color=#0000ff size=2>I forgot to mention that Open MPI and Intel MPI small
message latency are slightly worse as well in rc5 compared to
rc4.</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV align=left><FONT face=Arial size=2>Scott Weitzenkamp</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>SQA and Release Manager</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>Server Virtualization Business
Unit</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>Cisco Systems</FONT></DIV>
<DIV> </DIV><BR>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> openfabrics-ewg-bounces@openib.org
[mailto:openfabrics-ewg-bounces@openib.org] <B>On Behalf Of </B>Scott
Weitzenkamp (sweitzen)<BR><B>Sent:</B> Monday, June 05, 2006 12:51
AM<BR><B>To:</B> openfabrics-ewg@openib.org<BR><B>Subject:</B>
[openfabrics-ewg] Cisco SQA results so far for OFED 1.0
rc5<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN class=963574206-05062006><FONT face=Arial size=2>We've focused on
SDP and MPI performance so far on RHEL4 U3 x86_64. Some bad
news:</FONT></SPAN></DIV>
<UL>
<LI><SPAN class=963574206-05062006><FONT face=Arial size=2>MVAPICH MPI small
message latency is slightly worse across the board, as measured by OSU
latency benchmarks. For example:</FONT></SPAN>
<UL>
<LI><SPAN class=963574206-05062006><FONT face=Arial size=2>Lion Mini SDR:
small message latency up from 3.43 usec to 3.53 usec</FONT></SPAN>
<LI><SPAN class=963574206-05062006><FONT face=Arial size=2>Cheetah SDR:
small message latency up from 3.57 usec to 3.73 usec</FONT></SPAN></LI></UL>
<LI><SPAN class=963574206-05062006><FONT face=Arial size=2>SDP throughput
worse and small message latency worse than rc4. For
example</FONT></SPAN>
<UL>
<LI><SPAN class=963574206-05062006><FONT face=Arial size=2>SDP small
message latency <STRONG><EM>worse</EM></STRONG> than IPoIB
now</FONT></SPAN>
<LI><SPAN class=963574206-05062006><FONT face=Arial size=2>Lion Mini SDR:
throughput dropped from 7.24 Gb/sec to 6.45 Gb/sec</FONT></SPAN>
<LI><SPAN class=963574206-05062006><FONT face=Arial size=2>Lion Mini SDR:
latency grew from 17.5 usec to 30.0 usec</FONT></SPAN></LI></UL></LI></UL>
<DIV align=left><FONT face=Arial size=2>Scott Weitzenkamp</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>SQA and Release Manager</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>Server Virtualization Business
Unit</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>Cisco Systems</FONT></DIV>
<DIV> </DIV></BLOCKQUOTE></BODY></HTML>