<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 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@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:Menlo;
panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
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;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Sprechblasentext Zchn";
margin:0cm;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.apple-converted-space
{mso-style-name:apple-converted-space;}
span.SprechblasentextZchn
{mso-style-name:"Sprechblasentext Zchn";
mso-style-priority:99;
mso-style-link:Sprechblasentext;
font-family:"Tahoma","sans-serif";}
span.E-MailFormatvorlage20
{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:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
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="DE-AT" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US" style="color:#1F497D">></span><span lang="EN-US">I tried disabling the firewall real quick and still got the same results.<span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Disabling a potential error source for trial and error is always a good thing to isolate a problem.
<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal">However, at one point I got the following error:<o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">[proxy:0:1@Pi02] launch_procs (/home/pi/mpich2/mpich-3.1/src/pm/hydra/pm/pmiserv/pmip_cb.c:641): unable to change wdir to /home/pi/mpi_test (No such file or directory)<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">So I scratched my head and wondered if it was something as silly as the fact that I was calling mpiexec from a directory that existed on Pi01 and not on the other three. I quickly created the same directory on the other three Pis and bam:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#34BD26">pi@Pi01</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif"">
<b><span style="color:#5330E1">~/mpi_test $</span></b> mpiexec -f machinefile -n 4 hostname<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Pi01<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Pi04<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Pi03<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Pi02<o:p></o:p></span></p>
</div>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Was it really that simple?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Thanks.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Ken<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 lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Yes, That *<b>IS</b>* possible !
</span><span style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> As you mention it now – I had the same problem some years ago. Unfortunately I
didn’t remember in time sparing you from dealing with the same trouble.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Ursula
<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
</div>
</body>
</html>