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Subject: Re: [OMPI users] Need help resolving No route to host error with OpenMPI 1.1.2
From: Eric Thibodeau (kyron_at_[hidden])
Date: 2008-09-12 19:20:42


Prasanna,

    Please send me your /etc/make.conf and the contents of
/var/db/pkg/sys-cluster/openmpi-1.2.7/

You can package this with the following command line:

tar -cjf data.tbz /etc/make.conf /var/db/pkg/sys-cluster/openmpi-1.2.7/

And simply send me the data.tbz file.

Thanks,

Eric

Prasanna Ranganathan wrote:
> Hi,
>
> I did make sure at the beginning that only eth0 was activated on all the
> nodes. Nevertheless, I am currently verifying the NIC configuration on all
> the nodes and making sure things are as expected.
>
> While trying different things, I did come across this peculiar error which I
> had detailed in one of my previous mails in this thread.
>
> I am testing the helloWorld program in the following trivial case:
>
> mpirun -np 1 -host localhost /main/mpiHelloWorld
>
> Which works fine.
>
> But,
>
> mpirun -np 1 -host localhost --debug-daemons /main/mpiHelloWorld
>
> always fails as follows:
>
> Daemon [0,0,1] checking in as pid 2059 on host localhost
> [idx1:02059] [0,0,1] orted: received launch callback
> idx1 is node 0 of 1
> ranks sum to 0
> [idx1:02059] [0,0,1] orted_recv_pls: received message from [0,0,0]
> [idx1:02059] [0,0,1] orted_recv_pls: received exit
> [idx1:02059] *** Process received signal ***
> [idx1:02059] Signal: Segmentation fault (11)
> [idx1:02059] Signal code: (128)
> [idx1:02059] Failing at address: (nil)
> [idx1:02059] [ 0] /lib/libpthread.so.0 [0x2afa8c597f30]
> [idx1:02059] [ 1] /usr/lib64/libopen-rte.so.0(orte_pls_base_close+0x18)
> [0x2afa8be8e2a2]
> [idx1:02059] [ 2] /usr/lib64/libopen-rte.so.0(orte_system_finalize+0x70)
> [0x2afa8be795ac]
> [idx1:02059] [ 3] /usr/lib64/libopen-rte.so.0(orte_finalize+0x20)
> [0x2afa8be7675c]
> [idx1:02059] [ 4] orted(main+0x8a6) [0x4024ae]
> [idx1:02059] *** End of error message ***
>
> The failure happens with more verbose output when using the -d flag.
>
> Does this point to some bug in OpenMPI or am I missing something here?
>
> I have attached ompi_info output on this node.
>
> Regards,
>
> Prasanna.
>
>
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