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Subject: Re: [OMPI users] Two remote machines - asymmetric behavior
From: Ralph Castain (rhc_at_[hidden])
Date: 2009-08-03 13:41:56


The only thing that changes is the required connectivity. It sounds to me
like you may have a firewall issue here, where cloud3 is blocking
connectivity from cloud6, but cloud6 is allowing connectivity from cloud3.

Is there a firewall in operation, per chance?

Ralph

On Mon, Aug 3, 2009 at 11:08 AM, David Doria
<daviddoria+openmpi_at_[hidden]<daviddoria%2Bopenmpi_at_[hidden]>
> wrote:

>
> On Mon, Aug 3, 2009 at 9:47 AM, Ralph Castain <rhc_at_[hidden]> wrote:
>
>> You are both correct. If you simply type "mpirun pvserver", then we will
>> execute pvserver on whatever machine is local.
>>
>> However, if you type "mpirun -n 1 -H host1 pvserver", then we will start
>> pvserver on the specified host. Note that mpirun will still be executing on
>> your local machine - but pvserver will be running on the specified host.
>>
>> Ralph
>>
>
> Ralph,
>
> Does anything change based on where mpirun is executing?
>
> Can you shed any light on the initial question of asymmetric behavior?
>
> Thanks,
>
> David
>
>
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