[Beowulf] Clos networking and myrinet

Greg Lindahl lindahl at pathscale.com
Wed Jun 8 13:00:42 PDT 2005

On Wed, Jun 08, 2005 at 03:57:21PM -0400, Patrick Geoffray wrote:

> I think it's typical to have several nodes talking to several *other* 
> nodes, and that's fine with route dispersion. However, it's not typical 
> to have several nodes talking to the *same node at the same time*.


Obviously we aren't communicating, as I think the two are the same.
If I am doing a halo exchange with 4 neighbors, I am talking to 4
other nodes, and the same 4 other nodes are talking to me, too. This
happens at roughly the same time, perhaps you are thinking of
something different.

-- greg

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