The Numerator | Networking
Thanks to giant leaps in processor speed, the bottleneck of supercomputing has shifted to interconnects ' specifically, their relative inability to move data on and off a node quickly enough to keep the processor busy. Analyst firm IDC surveyed attendees at its annual High Performance Computer Forum in April and found that 92 percent experienced input/output limitations. Bandwidth was too limited, files were too large and the interconnects just didn't respond quickly enough, users responded.
I/O Limitations?Yes - 92%
No - 8%