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Subject: Re: [OMPI users] A problem with 'mpiexec -launch-agent'
From: Ralph Castain (rhc_at_[hidden])
Date: 2010-06-14 20:30:07


It isn't our intention either - still looking at this to see what is going on.

On Jun 14, 2010, at 6:24 PM, Terry Frankcombe wrote:

> On Tue, 2010-06-15 at 00:13 +0200, Reuti wrote:
>> Hi,
>>
>> Am 13.06.2010 um 09:02 schrieb Zhang Linbo:
>>
>>> Hi,
>>>
>>> I'm new to OpenMPI and have encountered a problem with mpiexec.
>>>
>>> Since I need to set up the execution environment for OpenMPI programs
>>> on the execution nodes, I use the following command line to launch an
>>> OMPI program:
>>>
>>> mpiexec -launch-agent /some_path/myscript ....
>>>
>>> The problem is: the above command works fine if I invoke 'mpiexec'
>>> without an absolute path just like above (assuming the PATH variable
>>> is properly set), but if I prepend an absolute path to 'mpiexec',
>>> e.g.:
>>>
>>> /OMPI_dir/bin/mpiexec -launch-agent /some_path/myscript ....
>>
>> using an absolute path is equivalent to use the --prefix option to
>> `mpiexec`. Both ways lead obviously to the erroneous behavior you
>> encounter.
>
> Hi folks
>
> Speaking as no more than an uneducated user, having the behaviour change
> depending on invoking by an absolute path or invoking by some
> unspecified (potentially shell-dependent) path magic seems like a bad
> idea.
>
> As a long-time *nix user, this just rubs me the wrong way.
>
> Ciao
> Terry
>
>
> --
> Dr. Terry Frankcombe
> Research School of Chemistry, Australian National University
> Ph: (+61) 0417 163 509 Skype: terry.frankcombe
>
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