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Subject: Re: [OMPI users] [OMPI devel] Open-MPI between Mac and Linux (ubuntu 9.04) over wireless
From: Pallab Datta (datta_at_[hidden])
Date: 2009-09-24 18:28:27


I resolved the name resolution issue and re-ran it but it still hangs at
the send-receive calls.
I ran it using:

 /usr/local/bin/mpirun --mca btl_tcp_port_min_v4 36900 -mca
btl_tcp_port_range_v4 32 --mca btl_base_verbose 30 --mca
OMPI_mca_mpi_preconnect_all 1 -np 2 -hetero -H localhost,10.11.14.205
/tmp/hello

> Hmm,
>
> On another angle, could this be a name resolution issue? Perhaps
> apex-backpack
> isn't able to resolve fuji.local and visa versa. Can you ping between the
> two of
> them using their hostnames rather then their IPs?
>
> -Joshua Bernstein
> Senior Software Engineer
> Penguin Computing
>
> Pallab Datta wrote:
>> Yes it came up when i put the verbose mode in i.e. the debug output..
>> yes i knew its privileged so thats why i explicity asked it to connect
>> to
>> a higher port but still it blocks there..:(
>>
>>> On Sep 24, 2009, at 12:54 PM, Pallab Datta wrote:
>>>
>>>> Yes I had tried that initially it (apex-backpack) was trying to
>>>> connect
>>>> the Mac (10.11.14.203) at port number 4 which is too low. So that's
>>>> why I
>>>> made the port range higher..
>>> Port 4? OMPI should never connect at port 4; it's privileged. Was
>>> that in the debug output?
>>>
>>> --
>>> Jeff Squyres
>>> jsquyres_at_[hidden]
>>>
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