Question 580
During a GPU datacenter maintenance window, an engineer discovers: A mixed Intel and AMD CPU GPU cluster shows slower model preprocessing on one hardware family, while operators compare only GPU clock rates. Which repeatable operational safeguard best prevents recurrence of this failure?
Explanation
Correct Answer
This preventive practice addresses the underlying failure (GPU training speed can be limited by host NUMA and CPU data supply rather than the accelerator's arithmetic capability.) and supports continued assurance through: The targeted CPU locality change improves preprocessing throughput without changing GPU clocks or violating NUMA policy.
Incorrect Answers
This prevention control targets another operational risk: A high-frequency CPU governor policy is disabled after a host OS update, and training data transforms fall behind GPU consumption on otherwise unchanged accelerators. The currently reported mechanism remains: GPU training speed can be limited by host NUMA and CPU data supply rather than the accelerator's arithmetic capability.
This prevention control targets another operational risk: A dual-socket GPU server routes all storage I/O interrupts to one CPU socket, increasing cross-socket memory traffic and causing uneven accelerator utilization. The currently reported mechanism remains: GPU training speed can be limited by host NUMA and CPU data supply rather than the accelerator's arithmetic capability.
This prevention control targets another operational risk: A data center's monitoring dashboard shows correct overall GPU utilization, but operators cannot identify which installed accelerator is failing because device indices change after reboot. The currently reported mechanism remains: GPU training speed can be limited by host NUMA and CPU data supply rather than the accelerator's arithmetic capability.