[Beowulf] Has DDR IB gone the way of the Dodo?

Joe Landman landman at scalableinformatics.com
Fri Oct 3 16:30:21 EDT 2008


Greg Lindahl wrote:

> Of course, your "latency and bandwidth" benchmark won't see this
> problem, because it only uses a single core, and it sends the same
> buffer over and over without touching it.

Yup.

We have a storage test using MPI that has each node generate random 
numbers, and passes the buffer around the nodes for IO.  The idea is of 
course to get a little closer to actual use cases ...

-- 
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
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