6 ms·
What is the distinction between low latency networking commonly used in supercomputers today and cloud computing? What is the cutoff? I've commonly seen 500 m
by halbritt 8y ago
What is the distinction between low latency networking commonly used in supercomputers today and cloud computing?
What is the cutoff?
I've commonly seen 500 microsecond latency between certain AWS zones. That's pretty impressive. Inside a given zone, 200-300 microseconds isn't uncommon.
- wmf 8y agoHPC networking is more like 2-3 microseconds. Also it's 200 Gbps instead of 25 Gbps.
- scrooched_moose 8y agoInfiniband is on the order of 1 microsecond between compute nodes and 100 Gb/s throughput. It's often still the bottleneck in HPC systems. https://en.wikipedia.org/wiki/InfiniBand https://en.wikipedia.org/wiki/InfiniBand