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Hello. I Have tested to use the command:<br><br>mpiexec -recvtimeout 30 -n 2 /home/mpi/mpich2-1.0.8/examples/cpi <br><br>and this is the result.<br><br>/********************************************************************************************************************************************************/ <br>Process 0 of 2 is on wireless <br>Process 1 of 2 is on wireless2 <br>Fatal error in MPI_Bcast: Other MPI error, error stack: <br>MPI_Bcast(786)............................: MPI_Bcast(buf=0x7ffff732586c, count=1, MPI_INT, root=0, MPI_COMM_WORLD) failed <br>MPIR_Bcast(230)...........................: <br>MPIC_Send(39).............................: <br>MPIC_Wait(270)............................: <br>MPIDI_CH3i_Progress_wait(215).............: an error occurred while handling an event returned by MPIDU_Sock_Wait() <br>MPIDI_CH3I_Progress_handle_sock_event(420):<br>MPIDU_Socki_handle_read(637)..............: connection failure (set=0,sock=1,errno=104:Connection reset by peer)[cli_0]: aborting job:<br>Fatal error in MPI_Bcast: Other MPI error, error stack:<br>MPI_Bcast(786)............................: MPI_Bcast(buf=0x7ffff732586c, count=1, MPI_INT, root=0, MPI_COMM_WORLD) failed<br>MPIR_Bcast(230)...........................:<br>MPIC_Send(39).............................:<br>MPIC_Wait(270)............................:<br>MPIDI_CH3i_Progress_wait(215).............: an error occurred while handling an event returned by MPFatal error in MPI_Bcast: Other MPI error, error stack:<br>MPI_Bcast(786)...............................: MPI_Bcast(buf=0xbf82bec8, count=1, MPI_INT, root=0, MPI_COMM_WORLD) failed<br>MPIR_Bcast(198)..............................:<br>MPIC_Recv(81)................................:<br>MPIC_Wait(270)...............................:<br>MPIDI_CH3i_Progress_wait(215)................: an error occurred while handling an event returned by MPIDU_Sock_Wait()<br>MPIDI_CH3I_Progress_handle_sock_event(640)...:<br>MPIDI_CH3_Sockconn_handle_connopen_event(887): unable to find the process group structure with id <>[cli_1]: aborting job:<br>Fatal error in MPI_Bcast: Other MPI error, error stack:<br>MPI_Bcast(786)...............................: MPI_Bcast(buf=0xbf82bec8, count=1, MPI_INT, root=0, MPI_COMM_WORLD) failed<br>MPIR_Bcast(198)..............................:<br>MPIC_Recv(81)................................:<br>MPIC_Wait(270)...............................:<br>MPIDI_CH3i_Progress_wait(215)................: an error occurred while handling an event rIDU_Sock_Wait()<br>MPIDI_CH3I_Progress_handle_sock_event(420):<br>MPIDU_Socki_handle_read(637)..............: connection failure (set=0,sock=1,errno=104:Connection reset by peer)<br>eturned by MPIDU_Sock_Wait()<br>MPIDI_CH3I_Progress_handle_sock_event(640)...:<br>MPIDI_CH3_Sockconn_handle_connopen_event(887): unable to find the process group structure with id <><br>rank 1 in job 21 wireless_47695 caused collective abort of all ranks<br> exit status of rank 1: return code 1<br>rank 0 in job 21 wireless_47695 caused collective abort of all ranks<br> exit status of rank 0: return code 1<br><br>/********************************************************************************************************************************************************/<br><br>The mpdcheck said that has a problem with the first ip but it's solved.<br>I tested:<br><br>mpdcheck -s and in the other node mpdcheck -c "name" "number" --------------> Well.<br>mpiexec -n 1 /bin/hostname -------------------------------------------------------------------------------------------------------------> Well.<br>mpiexec -l -n 4 /bin/hostname ----------------------------------------------------------------------------------------------------------> Well.<br><br>I have to say that with all command i have to put the options -recvtimeout 30 because but have problems. Without this option, say me:<br><br>mpiexec_wireless (mpiexec 392): no msg recvd from mpd when expecting ack of request<br><br><br>What can i do?? Please help and sorry for my poor english.<br><br><br><br><hr id="stopSpelling">From: ajcampa@hotmail.com<br>To: mpich-discuss@mcs.anl.gov<br>Date: Mon, 2 Feb 2009 18:17:39 +0100<br>Subject: Re: [mpich-discuss] Fatal error in MPI_Barrier<br><br>
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Well, thanks for your answer. Really, the name of mi pc is "Wireless" and the othes pc "Wireless2", i use in the two pc, the same user "mpi". <br><br>I will try the mpdchech utility and then write something.<br><br>Thank for all.<br><br>Un saludo desde España.<br><br><hr id="EC_stopSpelling">From: thakur@mcs.anl.gov<br>To: mpich-discuss@mcs.anl.gov<br>Date: Mon, 2 Feb 2009 10:55:03 -0600<br>Subject: Re: [mpich-discuss] Fatal error in MPI_Barrier<br><br>
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<div dir="ltr" align="left"><span class="EC_EC_811165316-02022009"><font color="#0000ff" face="Arial">Are you really trying to use the wireless network? Looks like
that's what is getting used.</font></span></div>
<div dir="ltr" align="left"><span class="EC_EC_811165316-02022009"><font color="#0000ff" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span class="EC_EC_811165316-02022009"><font color="#0000ff" face="Arial">You can use the mpdcheck utility to diagnose
network configuration problems. See Appendix A.2 of the installation
guide.</font></span></div>
<div dir="ltr" align="left"><span class="EC_EC_811165316-02022009"><font color="#0000ff" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span class="EC_EC_811165316-02022009"><font color="#0000ff" face="Arial">Rajeev</font></span></div><br>
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<font face="Tahoma"><b>From:</b> mpich-discuss-bounces@mcs.anl.gov
[mailto:mpich-discuss-bounces@mcs.anl.gov] <b>On Behalf Of </b>Antonio José
Gallardo Díaz<br><b>Sent:</b> Monday, February 02, 2009 9:49 AM<br><b>To:</b>
mpich-discuss@mcs.anl.gov<br><b>Subject:</b> [mpich-discuss] Fatal error in
MPI_Barrier<br></font><br></div>
<div></div>Hello, this error show me when i try my jobs that use
MPI.<br><br><br>Fatal error in MPI_Barrier: Other MPI error, error
stack:<br>MPI_Barrier(406).............................:
MPI_Barrier(MPI_COMM_WORLD)
failed<br>MPIR_Barrier(77).............................:<br>MPIC_Sendrecv(123)...........................:<br>MPIC_Wait(270)...............................:<br>MPIDI_CH3i_Progress_wait(215)................:
an error occurred while handling an event returned by
MPIDU_Sock_Wait()<br>MPIDI_CH3I_Progress_handle_sock_event(640)...:<br>MPIDI_CH3_Sockconn_handle_connopen_event(887):
unable to find the process group structure with id <��oz�>[cli_1]:
aborting job:<br>Fatal error in MPI_Barrier: Other MPI error, error
stack:<br>MPI_Barrier(406).............................:
MPI_Barrier(MPI_COMM_WORLD)
failed<br>MPIR_Barrier(77).............................:<br>MPIC_Sendrecv(123)...........................:<br>MPIC_Wait(270)...............................:<br>MPIDI_CH3i_Progress_wait(215)................:
an error occurred while handling an event returned by
MPIDU_Sock_Wait()<br>MPIDI_CH3I_Progress_handle_sock_event(640)...:<br>MPIDI_CH3_Sockconn_handle_connopen_event(887):
unable to find the process group structure with id <��oz�><br>rank 1 in
job 15 wireless_43226 caused collective abort of all
ranks<br> exit status of rank 1: killed by signal 9<br><br>I have two
PC's with linux (kubuntu 8.10). I make a cluster using this machines. When use
for example the command "mpiexec -l -n 2 hostname" i can see that it's all
right, but when i try to send o receive some thing i have the same error. I
don't know why. Please i need one hand. Thanks for all. <br><br>
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