[mpich-discuss] unable to get host address

[Pavan Balaji]

What's the output for "hostname" on your machine?

  -- Pavan

On 02/23/2011 10:13 AM, Alex Theiakos wrote:
> Dear Nicolas,
>
> First thx for your support, I really appreciate it!
>
> Now to your questions,
>
> --I'm running on 10.6.6 all updates done.
>
> --Hosts file is clean, exactly the same as yours.
>
> --I believe i'm not behind a NAT, with ifconfig i'm getting ip's on en0 and en1 profiles (other than the usual 195. or 10. ones )
>
> --I tried the scutil command but nothing changed, still getting the same output.
>
> Just for the record I compiled the openmpi (no offense guys) this morning to see if it would work and it does...
> However I would like to check MPICH2, if we can manage to work this out...
>
> Regards,
>
> Alex
>
> On Feb 23, 2011, at 4:41 PM, Nicolas Rosner wrote:
>
>> Dear Alex,
>>
>> Looks to me like something on your side is triggering a possible bug I
>> believe to have spotted in sock.c, but I still can't seem to reproduce
>> it the way it's happening to you.
>>
>> I'm missing an important factor that those last values, odd as some
>> may be, don't seem to account for. If I'm not seeing ghosts, I'll
>> report the details later.
>>
>> More questions, if you don't mind:
>>
>> * What version of OS X are you running?
>>
>> * Do you remember having modified the original /etc/hosts file? If it
>> contains any entries besides the ones in the one I enclose below,
>> would you please post its contents?
>>
>> * Are you behind a NAT router, or directly connected to an ISP? (Does
>> ifconfig | grep 'UP\|inet\b'  show any IP address that doesn't start
>> with either 192.168.x.x, 10.0.x.x or 127.0.x.x?)
>>
>> * Does anything change if you run (assuming you can and don't mind trying)
>>    sudo scutil --set HostName alexmac
>> and then retry, eventually adding if need be
>>    mpiexec -n 2 -hosts alexmac ./a.out
>>
>> where "alexmac" can be any fresh (previously unused) name you like?
>>
>> Thanks,
>> Nicolás
>>
>>
>>
>> Here are comparable values from the freshly installed MacBook (where
>> MPICH2 builds and runs fine, although on an internal IP addr). This is
>> just for future reference: though related, I don't think it's by
>> itself the main cause.
>>
>> hostname: Rogers-MacBook-Pro.local
>> hostname -s: Rogers-MacBook-Pro
>> scutil --get HostName: HostName: not set
>> scutil --get LocalHostName: Rogers-MacBook-Pro
>> scutil --get ComputerName: Roger’s MacBook Pro
>>
>> And here's the default /etc/hosts file from OS X 10.6.x:
>>
>> ##
>> # Host Database
>> #
>> # localhost is used to configure the loopback interface
>> # when the system is booting.  Do not change this entry.
>> ##
>> 127.0.0.1 localhost
>> 255.255.255.255  broadcasthost
>> ::1  localhost
>> fe80::1%lo0  localhost
>>
>>
>> On Wed, Feb 23, 2011 at 10:52 AM, Alex Theiakos
>> <Alexios.Theiakos at student.uva.nl>  wrote:
>>> Dear Nicolas,
>>> hostname: 145.116.14.woonstichting.de.key.invalid
>>> hostname -s:  145
>>> scutil --get HostName: HostName: not set
>>> scutil --get LocalHostName: lelos
>>> Regards,
>>> Alex
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>
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji