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Subject: Re: [OMPI users] mca:base:select:( ess) No component selected!
From: Will Portnoy (will.portnoy_at_[hidden])
Date: 2008-09-24 14:22:26


Sorry for the miscommunication: The processes are started by my
program with MPI_Comm_spawn, so there was no mpirun involved.

If you can suggest a test program I can use with mpirun to validate my
openmpi environment and install, that would probably produce the
output you would like to see.

But I'm not sure that will make it clear how the file pointed to by
"orte_launch_agent" in "mca-params.conf" should be written to setup an
environment and start orted.

Will

On Wed, Sep 24, 2008 at 2:17 PM, Ralph Castain <rhc_at_[hidden]> wrote:
> Afraid I am confused. This was the entire output from the job?? If so, then
> that means mpirun itself wasn't able to find a launch environment it could
> use, so you never got to the point of actually launching an orted.
>
> Do you have ssh in your path? My best immediate guess is that you don't, and
> that mpirun therefore doesn't see anything it can use to launch a job. We
> have discussed internally that we need to improve that error message - could
> be this is another case emphasizing that point.
>
> 1.3 is fine to use - still patching some bugs, but nothing that should
> impact this issue.
>
> Ralph
>
> On Sep 24, 2008, at 12:11 PM, Will Portnoy wrote:
>
>> That was the output with plm_base_verbose set to 99 - it's the same
>> output with 1.
>>
>> Yes, I'd like to use ssh.
>>
>> orted wasn't starting properly with orte_launch_agent (which was
>> needed because my environment on the target machine wasn't set up), so
>> that's why I thought I would try it directly on the command line on
>> localhost. I thought this was a simpler case: to verify that orted
>> could find all of its necessary components without the complexity of
>> everything else I'm doing.
>>
>> If I needed to use orte_launch_agent, how should I pass the necessary
>> parameters to start orted after I set up my environment?
>>
>> Am I better off using trunk over 1.3?
>>
>> thank you,
>>
>> Will
>>
>> On Wed, Sep 24, 2008 at 2:01 PM, Ralph Castain <rhc_at_[hidden]> wrote:
>>>
>>> Could you rerun that with -mca plm_base_verbose 1? What environment are
>>> you
>>> in - I assume rsh/ssh?
>>>
>>> I would like to see the cmd line being used to launch the orted. What
>>> this
>>> indicates is that we are not getting the cmd line correct. Could just be
>>> that some patch in the trunk didn't get completely applied to the 1.3
>>> branch.
>>>
>>> BTW: you probably can't run orted directly off of the cmd line. It likely
>>> needs some cmd line params to get critical info.
>>>
>>> Ralph
>>>
>>> On Sep 24, 2008, at 9:47 AM, Will Portnoy wrote:
>>>
>>>> I'm trying to use MPI_Comm_Spawn with MPI_Info's host key to spawn
>>>> processes from a process not started with mpirun. This works with the
>>>> host key set to the localhost's hostname, but it does not work when I
>>>> use other hosts.
>>>>
>>>> I'm using version 1.3a1r19602. I need to use orte_launch_agent to set
>>>> up my environment a bit before orted is started, but it fails with
>>>> errors listed below.
>>>>
>>>> When I try to run orted directly on the command line with some of the
>>>> verbosity flags turned to "11", I receive the same messages.
>>>>
>>>> Does anybody have any suggestions?
>>>>
>>>> thank you,
>>>>
>>>> Will
>>>>
>>>>
>>>> [fqdn:24761] mca: base: components_open: Looking for ess components
>>>> [fqdn:24761] mca: base: components_open: opening ess components
>>>> [fqdn:24761] mca: base: components_open: found loaded component env
>>>> [fqdn:24761] mca: base: components_open: component env has no register
>>>> function
>>>> [fqdn:24761] mca: base: components_open: component env open function
>>>> successful
>>>> [fqdn:24761] mca: base: components_open: found loaded component hnp
>>>> [fqdn:24761] mca: base: components_open: component hnp has no register
>>>> function
>>>> [fqdn:24761] mca: base: components_open: component hnp open function
>>>> successful
>>>> [fqdn:24761] mca: base: components_open: found loaded component
>>>> singleton
>>>> [fqdn:24761] mca: base: components_open: component singleton has no
>>>> register function
>>>> [fqdn:24761] mca: base: components_open: component singleton open
>>>> function successful
>>>> [fqdn:24761] mca: base: components_open: found loaded component slurm
>>>> [fqdn:24761] mca: base: components_open: component slurm has no
>>>> register function
>>>> [fqdn:24761] mca: base: components_open: component slurm open function
>>>> successful
>>>> [fqdn:24761] mca: base: components_open: found loaded component tool
>>>> [fqdn:24761] mca: base: components_open: component tool has no register
>>>> function
>>>> [fqdn:24761] mca: base: components_open: component tool open function
>>>> successful
>>>> [fqdn:24761] mca:base:select: Auto-selecting ess components
>>>> [fqdn:24761] mca:base:select:( ess) Querying component [env]
>>>> [fqdn:24761] mca:base:select:( ess) Skipping component [env]. Query
>>>> failed to return a module
>>>> [fqdn:24761] mca:base:select:( ess) Querying component [hnp]
>>>> [fqdn:24761] mca:base:select:( ess) Skipping component [hnp]. Query
>>>> failed to return a module
>>>> [fqdn:24761] mca:base:select:( ess) Querying component [singleton]
>>>> [fqdn:24761] mca:base:select:( ess) Skipping component [singleton].
>>>> Query failed to return a module
>>>> [fqdn:24761] mca:base:select:( ess) Querying component [slurm]
>>>> [fqdn:24761] mca:base:select:( ess) Skipping component [slurm]. Query
>>>> failed to return a module
>>>> [fqdn:24761] mca:base:select:( ess) Querying component [tool]
>>>> [fqdn:24761] mca:base:select:( ess) Skipping component [tool]. Query
>>>> failed to return a module
>>>> [fqdn:24761] mca:base:select:( ess) No component selected!
>>>> [fqdn:24761] [[INVALID],INVALID] ORTE_ERROR_LOG: Not found in file
>>>> runtime/orte_init.c at line 125
>>>>
>>>> --------------------------------------------------------------------------
>>>> It looks like orte_init failed for some reason; your parallel process is
>>>> likely to abort. There are many reasons that a parallel process can
>>>> fail during orte_init; some of which are due to configuration or
>>>> environment problems. This failure appears to be an internal failure;
>>>> here's some additional information (which may only be relevant to an
>>>> Open MPI developer):
>>>>
>>>> orte_ess_base_select failed
>>>> --> Returned value Not found (-13) instead of ORTE_SUCCESS
>>>>
>>>> --------------------------------------------------------------------------
>>>> [fqdn:24761] [[INVALID],INVALID] ORTE_ERROR_LOG: Not found in file
>>>> orted/orted_main.c at line 315
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>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
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