5 years ago, the low-end approach was 100bT; now its 1000bT. the prime
target for that approach (serial or EP) has simply gotten broader;
I don't see this as anything to complain about. for "real" parallel,
you have to pay for the network you need. there as well, you now get more
for your money, no complaints. complaining that you can't get 1 us, 1GBps
interconnect for $50/port is just silliness.
I disagree on this last point. Why can't low latency interconnects become the
standard?
because most of computing is not latency-sensitive. even in HPC, most cycles
are consumed by throughput and loose-parallel apps (where Gb works fine.)
It is not just HPC applications that are demanding low latency
networks.
what applications are you thinking of? the only I can think of would be
lock/metadata traffic for very large parallel clustered DB/filesystem,
and even there the argument is weak.
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