Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: Re: [OMPI users] How to start MPI_Spawn child processes early?
From: Douglas Guptill (douglas.guptill_at_[hidden])
Date: 2010-01-27 17:55:56


It sounds to me a bit like asking to be born before your mother.

Unless I misunderstand the question...
Douglas.

On Thu, Jan 28, 2010 at 09:24:29AM +1100, Jaison Paul wrote:
> Hi, I am just reposting my early query once again. If anyone one can
> give some hint, that would be great.
>
> Thanks, Jaison
> ANU
>
> Jaison Paul wrote:
>> Hi All,
>>
>> I am trying to use MPI for scientific High Performance (hpc)
>> applications. I use MPI_Spawn to create child processes. Is there a
>> way to start child processes early than the parent process, using
>> MPI_Spawn?
>>
>> I want this because, my experiments showed that the time to spawn the
>> children by parent is too long for HPC apps which slows down the whole
>> process. If the children are ready when parent application process
>> seeks for them, that initial delay can be avoided. Is there a way to
>> do that?
>>
>> Thanks in advance,
>>
>> Jaison
>> Australian National University