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Subject: Re: [OMPI devel] -display-map and mpi_spawn
From: Greg Watson (g.watson_at_[hidden])
Date: 2008-09-16 14:52:06


Hi Ralph,

No I'm happy to get a map at the beginning and at every spawn. Do you
send the whole map again, or only an update?

Regards,

Greg

On Sep 11, 2008, at 9:09 AM, Ralph Castain wrote:

> It already somewhat does. If you use --display-map at mpirun, you
> automatically get display-map whenever MPI_Spawn is called.
>
> We didn't provide a mechanism by which you could only display-map
> for MPI_Spawn (and not for the original mpirun), but it would be
> trivial to do so - just have to define an info-key for that purpose.
> Is that what you need?
>
>
> On Sep 11, 2008, at 5:35 AM, Greg Watson wrote:
>
>> Ralph,
>>
>> At the moment -display-map shows the process mapping when mpirun
>> first starts, but I'm wondering about processes created
>> dynamically. Would it be possible to trigger a map update when
>> MPI_Spawn is called?
>>
>> Regards,
>>
>> Greg
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