If you look at the top500 list, 50% of the machines have Infiniband and 37%
Gigabit Ethernet. InfiniBand has a low latency of 3–5 microseconds, which is
much lower than Ethernet's 20–80 microseconds. But Ethernet can be a
cost-effective solution with reasonably good performance, provided that yo
The FAQ about the kind of parallel computers or clusters needed
to use PETSc states:
"any ethernet (even 10 GigE) simply cannot provide the needed performance."
Does this statement still hold now that 100 GigE is common?
The broader question is that we are buying a new cluster to run
our in-hous
