Re: [OMPI users] No network interfaces were found for out-of-band communications.

[Ralph H Castain]

Just looking at the code, we do require that at least the loopback device be 
available. So you need to “activate” the Ethernet support, but you can restrict 
it to only loopback, which should meet your security requirement.


> On Sep 12, 2018, at 8:10 AM, Jeff Squyres (jsquyres) via users 
>  wrote:
> 
> Can you send all the information listed here:
> 
>https://www.open-mpi.org/community/help/
> 
> 
> 
>> On Sep 12, 2018, at 11:03 AM, Greg Russell  wrote:
>> 
>> OpenMPI-3.1.2
>> 
>> Sent from my iPhone
>> 
>> On Sep 12, 2018, at 10:50 AM, Ralph H Castain  wrote:
>> 
>>> What OMPI version are we talking about here?
>>> 
>>> 
 On Sep 11, 2018, at 6:56 PM, Greg Russell  wrote:
 
 I have a single machine w 96 cores.  It runs CentOS7 and is not connected 
 to any network as it needs to isolated for security.
 
 I attempted the standard install process and upon attempting to run 
 ./mpirun I find the error message
 
 "No network interfaces were found for out-of-band communications. We 
 require at least one available network for out-of-band messaging."
 
 I'm a rookie with openMPI so I'm guessing maybe some configuration flags 
 might fix the whole problem?  Any ideas are very much appreciated.
 
 Thank you,
 Russell
 ___
 users mailing list
 users@lists.open-mpi.org
 https://lists.open-mpi.org/mailman/listinfo/users
>>> 
>>> ___
>>> users mailing list
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>>> https://lists.open-mpi.org/mailman/listinfo/users
>> ___
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>> https://lists.open-mpi.org/mailman/listinfo/users
> 
> 
> -- 
> Jeff Squyres
> jsquy...@cisco.com
> 
> ___
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Re: [OMPI users] No network interfaces were found for out-of-band communications.

[Jeff Squyres (jsquyres) via users]

Can you send all the information listed here:

https://www.open-mpi.org/community/help/



> On Sep 12, 2018, at 11:03 AM, Greg Russell  wrote:
> 
> OpenMPI-3.1.2
> 
> Sent from my iPhone
> 
> On Sep 12, 2018, at 10:50 AM, Ralph H Castain  wrote:
> 
>> What OMPI version are we talking about here?
>> 
>> 
>>> On Sep 11, 2018, at 6:56 PM, Greg Russell  wrote:
>>> 
>>> I have a single machine w 96 cores.  It runs CentOS7 and is not connected 
>>> to any network as it needs to isolated for security.
>>> 
>>> I attempted the standard install process and upon attempting to run 
>>> ./mpirun I find the error message
>>> 
>>> "No network interfaces were found for out-of-band communications. We 
>>> require at least one available network for out-of-band messaging."
>>> 
>>> I'm a rookie with openMPI so I'm guessing maybe some configuration flags 
>>> might fix the whole problem?  Any ideas are very much appreciated.
>>> 
>>> Thank you,
>>> Russell
>>> ___
>>> users mailing list
>>> users@lists.open-mpi.org
>>> https://lists.open-mpi.org/mailman/listinfo/users
>> 
>> ___
>> users mailing list
>> users@lists.open-mpi.org
>> https://lists.open-mpi.org/mailman/listinfo/users
> ___
> users mailing list
> users@lists.open-mpi.org
> https://lists.open-mpi.org/mailman/listinfo/users


-- 
Jeff Squyres
jsquy...@cisco.com

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Re: [OMPI users] No network interfaces were found for out-of-band communications.

[Greg Russell]

OpenMPI-3.1.2

Sent from my iPhone

On Sep 12, 2018, at 10:50 AM, Ralph H Castain 
mailto:r...@open-mpi.org>> wrote:

What OMPI version are we talking about here?


On Sep 11, 2018, at 6:56 PM, Greg Russell 
mailto:russ...@pcka.com>> wrote:

I have a single machine w 96 cores.  It runs CentOS7 and is not connected to 
any network as it needs to isolated for security.

I attempted the standard install process and upon attempting to run ./mpirun I 
find the error message

"No network interfaces were found for out-of-band communications. We require at 
least one available network for out-of-band messaging."

I'm a rookie with openMPI so I'm guessing maybe some configuration flags might 
fix the whole problem?  Any ideas are very much appreciated.

Thank you,
Russell
___
users mailing list
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https://lists.open-mpi.org/mailman/listinfo/users

___
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https://lists.open-mpi.org/mailman/listinfo/users
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Re: [OMPI users] No network interfaces were found for out-of-band communications.

[Ralph H Castain]

What OMPI version are we talking about here?


> On Sep 11, 2018, at 6:56 PM, Greg Russell  wrote:
> 
> I have a single machine w 96 cores.  It runs CentOS7 and is not connected to 
> any network as it needs to isolated for security.
> 
> I attempted the standard install process and upon attempting to run ./mpirun 
> I find the error message
> 
> "No network interfaces were found for out-of-band communications. We require 
> at least one available network for out-of-band messaging."
> 
> I'm a rookie with openMPI so I'm guessing maybe some configuration flags 
> might fix the whole problem?  Any ideas are very much appreciated.
> 
> Thank you,
> Russell
> ___
> users mailing list
> users@lists.open-mpi.org 
> https://lists.open-mpi.org/mailman/listinfo/users 
> 
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[OMPI users] No network interfaces were found for out-of-band communications.

[Greg Russell]

I have a single machine w 96 cores.  It runs CentOS7 and is not connected to 
any network as it needs to isolated for security.


I attempted the standard install process and upon attempting to run ./mpirun I 
find the error message


"No network interfaces were found for out-of-band communications. We require at 
least one available network for out-of-band messaging."


I'm a rookie with openMPI so I'm guessing maybe some configuration flags might 
fix the whole problem?  Any ideas are very much appreciated.


Thank you,

Russell
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