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Subject: Re: [OMPI users] How can I tell (open-)mpi about the HW topology of my system?
From: Luigi Scorzato (luigi.scorzato_at_[hidden])
Date: 2009-10-27 06:12:10


Dear Jeff

>However, we do have the good foresight (if I do say so myself ;-) ) to
>make the MPI topology system be a plugin in Open MPI. The only plugin
>for this system is currently the "do nothing" plugin, but it would
>*not* be difficult to write one that actually did something meaningful
>in your torus.

>If you're interested, I'd be happy to explain how to do it (and we
>should probably move to the devel list). OMPI doesn't require too
>much framework code; I would guess that the majority of the code would
>actually be implementing whatever algorithms you wanted for your
>torus. Heck, you could even write a blind-and-dumb algorithm that
>just looks up tables in files based on hostnames in your torus.

I am very much interested. Could you please suggest me where I should
look into?

(you are also welcome to move this thread to ompi-devel)

Best regards, Luigi