<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"MS Mincho";
panose-1:2 2 6 9 4 2 5 8 3 4;}
@font-face
{font-family:"MS Mincho";
panose-1:2 2 6 9 4 2 5 8 3 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"MS Mincho";
panose-1:2 2 6 9 4 2 5 8 3 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.apple-style-span
{mso-style-name:apple-style-span;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:99.25pt 85.05pt 85.05pt 85.05pt;}
div.WordSection1
{page:WordSection1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple style='word-wrap: break-word;
-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'>
<div class=WordSection1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am not sure what is wrong with that. It is swinging between
3.5 and 3.9 Gflops.<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'><o:p> </o:p></span></p>
<div>
<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"'> petsc-dev-bounces@mcs.anl.gov
[mailto:petsc-dev-bounces@mcs.anl.gov] <b>On Behalf Of </b>Barry Smith<br>
<b>Sent:</b> Tuesday, August 31, 2010 2:03 PM<br>
<b>To:</b> For users of the development version of PETSc<br>
<b>Subject:</b> Re: [petsc-dev] [GPU] Performance of ex19<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<p class=MsoNormal> Your MatMult is now slower. Are your results
reproducible, if you run 5 times how similar are them?<o:p></o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal> Barry<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal>On Aug 31, 2010, at 2:57 PM, Keita Teranishi wrote:<o:p></o:p></p>
</div>
<p class=MsoNormal><br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecDot
2 1.0 0.0000e+00 0.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0 0
0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecMDot
2024 1.0 1.1560e+00 1.0 2.54e+09 1.0 0.0e+00 0.0e+00 0.0e+00 18 29
0 0 0 32 29 0 0 0 2201</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecNorm
2096 1.0 3.5999e-01 1.0 1.68e+08 1.0 0.0e+00 0.0e+00 0.0e+00 6
2 0 0 0 10 2 0 0 0
466</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecScale
2092 1.0 2.1599e-01 1.0 8.37e+07 1.0 0.0e+00 0.0e+00 0.0e+00 3
1 0 0 0 6 1 0 0
0 387</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecCopy
2072 1.0 5.5997e-02 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 1
0 0 0 0 2 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecSet
70 1.0 8.0004e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0
0 0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecAXPY
108 1.0 2.7999e-02 1.0 8.64e+06 1.0 0.0e+00 0.0e+00 0.0e+00 0
0 0 0 0 1 0 0 0
0 309</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecWAXPY
68 1.0 7.9999e-03 1.0 2.72e+06 1.0 0.0e+00 0.0e+00 0.0e+00 0
0 0 0 0 0 0 0 0
0 340</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecMAXPY
2092 1.0 5.8399e-01 1.0 2.71e+09 1.0 0.0e+00 0.0e+00 0.0e+00 9 31
0 0 0 16 31 0 0 0 4634</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecScatterBegin 5 1.0
4.0002e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecReduceArith 2
1.0 3.9999e-03 1.0 1.60e+05 1.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 40</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecReduceComm
1 1.0 0.0000e+00 0.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecCUDACopyTo 10
1.0 3.9999e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0 0
0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>VecCUDACopyFrom 5 1.0
4.0002e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>SNESSolve
1 1.0 3.6119e+00 1.0 8.87e+09 1.0 0.0e+00 0.0e+00 0.0e+00 56100 0
0 0 100100 0 0 0 2456</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>SNESLineSearch 2
1.0 4.0002e-03 1.0 5.49e+06 1.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0 0 1374</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>SNESFunctionEval 3 1.0
4.0002e-03 1.0 2.52e+06 1.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0 0 630</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>SNESJacobianEval 2 1.0 3.1199e-01
1.0 3.85e+07 1.0 0.0e+00 0.0e+00 0.0e+00 5 0 0 0
0 9 0 0 0 0 123</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>KSPGMRESOrthog 2024 1.0 1.7120e+00
1.0 5.09e+09 1.0 0.0e+00 0.0e+00 0.0e+00 26 57 0 0 0 47
57 0 0 0 2972</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>KSPSetup
2 1.0 0.0000e+00 0.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>KSPSolve
2 1.0 3.2919e+00 1.0 8.83e+09 1.0 0.0e+00 0.0e+00 0.0e+00 51 99 0
0 0 91 99 0 0 0 2681</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>PCSetUp
2 1.0 0.0000e+00 0.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>PCApply
2024 1.0 4.7998e-02 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 1
0 0 0 0 1 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>MatMult
2092 1.0 8.9998e-01 1.0 3.32e+09 1.0 0.0e+00 0.0e+00 0.0e+00 14 37
0 0 0 25 37 0 0 0 3689</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>MatAssemblyBegin 2 1.0
0.0000e+00 0.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>MatAssemblyEnd 2
1.0 1.2000e-02 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0 0
0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>MatZeroEntries 2
1.0 0.0000e+00 0.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0
0 0</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>MatFDColorApply 2 1.0
3.1199e-01 1.0 3.85e+07 1.0 0.0e+00 0.0e+00 0.0e+00 5 0
0 0 0 9 0 0 0 0 123</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>MatFDColorFunc 42 1.0
7.9999e-03 1.0 3.53e+07 1.0 0.0e+00 0.0e+00 0.0e+00 0 0
0 0 0 0 0 0 0 0 4410</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</div>
</body>
</html>