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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=910442416-08052009>Ok. Let us know if need any help.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=910442416-08052009></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=910442416-08052009>Regards,</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=910442416-08052009>Jayesh</SPAN></FONT></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> mpich-discuss-bounces@mcs.anl.gov
[mailto:mpich-discuss-bounces@mcs.anl.gov] <B>On Behalf Of </B>Rod
Cook<BR><B>Sent:</B> Friday, May 08, 2009 11:03 AM<BR><B>To:</B>
mpich-discuss@mcs.anl.gov<BR><B>Subject:</B> Re: [mpich-discuss] MPI_Init
problem<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2>This problem has been resolved. This is an old
message that has been stuck somewhere in the ether for the past few
weeks.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Rod Cook.</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=rod@cookies.demon.co.uk href="mailto:rod@cookies.demon.co.uk">Rod
Cook</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=mpich-discuss@mcs.anl.gov
href="mailto:mpich-discuss@mcs.anl.gov">mpich-discuss@mcs.anl.gov</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 20, 2009 3:16
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [mpich-discuss] MPI_Init
problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>I have a farming code where an MPI program
spawns a number of jobs, these jobs then run a sequence of other MPI
applications which fail in MPI_Init. I am using MPICH2 v1.08 under Windows XP.
T</FONT><FONT face=Arial size=2>he </FONT><FONT face=Arial size=2>MPI program
(FARMER) spawns two executables (JOB) using MPI_Comm_spawn. These executables
(JOB) then run (using CreateProcess) another MPI application
(APP). mpiexec is used to start all the MPI executables.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT><FONT face=Arial size=2></FONT><FONT
face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>APP crashes (times out) in
it's call to MPI_Init with the following message:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>MPIDU_Sock_post_connect failed.<BR>Fatal error in
MPI_Init: Other MPI error, error stack:<BR>MPIR_Init_thread(294):
Initialization failed<BR>MPID_Init(83)........: channel initialization
failed<BR>MPID_Init(334).......: PMI_Init returned -1[0] PMI_ConnectToHost
failed: unable<BR>to post a connect to Yellowtail yellowtail :1061, error:
Unknown<BR>error class, error stack:<BR>MPIDU_Sock_post_connect(1228): unable
to connect to Yellowtail yellowtail </FONT></DIV>
<DIV><FONT face=Arial
size=2>
on port 1061, exhausted all endpoints (errno
-1)<BR>MPIDU_Sock_post_connect(1275): unable to connect
to
on port 1061,<BR> No connection could be made because the target
machine actively refused it. (er<BR>rno
10061)<BR>MPIDU_Sock_post_connect(1275): unable to connect to yellowtail on
port 1061, No<BR>connection could be made because the target machine actively
refused it. (errno<BR>10061)<BR>MPIDU_Sock_post_connect(1275): unable to
connect to Yellowtail on port 1061, No<BR>connection could be made because the
target machine actively refused it. (errno<BR>10061)<BR>uPMI_ConnectToHost
returning PMI_FAIL<BR>[0] PMI_Init failed.<BR></DIV></FONT>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I think the crash is caused by MPI_Init in
APP trying to synchronise with MPI_Comm_spawn in FARMER. There is
no need for this from the farming codes point of view because
APP is independent of both FARMER and JOB. The farming works OK if I
replace APP with a version that doesn't use MPI. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks for your help,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Rod Cook</FONT></DIV>
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