[Beowulf] Re: SMPs + One processor machines = Heterogeneous Cluster

Mark Hahn hahn at mcmaster.ca
Fri Apr 4 10:06:50 EDT 2008


> different clock, or anything which makes their performance
> non-uniform.  Most MPI codes only run as fast as their slowest

yep, me too.  anything which will prevent each process from behaving the same
as all the others.  type of cpu, clock, amount of memory, interconnect,
even size of disk.  in the strictest sense, it's really only single-core
nodes that can be fully homogenous...

regards, mark hahn.
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