On Nov 3, 2009, at 3:40 AM, Luigi Scorzato wrote:
This defines the precise relation between ranks and coordinates. Once
I know this, I do not even need to write a topo component, because I
can define the ranks of my computing nodes in a rankfile in order
that they get the coordinates that they n
On 30 Oct 2009, at 20:28, Jeff Squyres wrote:
What George is describing is the Right answer, but it may take you
a little time.
FWIW: the complexity of a topo component is actually pretty low.
It's essentially a bunch of glue code (that I can probably mostly
provide) and your mapping al
What George is describing is the Right answer, but it may take you a
little time.
FWIW: the complexity of a topo component is actually pretty low. It's
essentially a bunch of glue code (that I can probably mostly provide)
and your mapping algorithms about how to reorder the communicator ra
Luigi,
The current way Open MPI is selecting the network to be used between
processes, match very well the first approach you proposed. As we
support multiple networks simultaneously, a BTL (the low level network
driver) can service only a subset of peers. All other communications
will au
pen-mpi.org
> [mailto:devel-boun...@open-mpi.org] On Behalf Of Luigi Scorzato
> Sent: Friday, October 30, 2009 2:47 AM
> To: Open MPI Developers
> Subject: Re: [OMPI devel] RFC: revamp topo framework
>
>
>
> I am very interested in this, but let me explain in more
>
I am very interested in this, but let me explain in more details my
present situation and goals.
I am working in a group who is testing a system under development
which is connected with both:
- an ordinary all to all standard interface (where open-mpi is
already available) but with limi
Excellent point. I'll ping Torsten; I know he did some work to
prototype those new functions in OMPI.
On Oct 28, 2009, at 11:06 AM, Edgar Gabriel wrote:
One question that I had in the back of my had a while ago was whether
the functionality of the topo framework needs to be adapted to suppor
One question that I had in the back of my had a while ago was whether
the functionality of the topo framework needs to be adapted to support
the new MPI 2.2 graph topology functions? Maybe this can be taken into
consideration as well...
Thanks
Edgar
Jeff Squyres wrote:
WHAT: Revamp the top
WHAT: Revamp the topo base to make it like the rest of the OMPI
frameworks.
WHY: topo was written way back at the beginning of time and is showing
its age (i.e., other frameworks have advanced while topo has not).
Someone is interested in possibly writing a new topo component, so it
seem
