NCA-AIIO · Question #31
NCA-AIIO Question #31: Real Exam Question with Answer & Explanation
The correct answer is C: It enables faster data transfers between GPUs and CPUs without involving the operating system.. NVIDIA GPUDirect RDMA allows network adapters to directly access GPU memory, bypassing the CPU and operating system kernel. This accelerates data transfers between GPUs and CPUs (or other devices), reducing latency and CPU overhead in AI workflows, such as multi-node training. It
Question
What is a key benefit of using NVIDIA GPUDirect RDMA in an AI environment?
Options
- AIt increases the power efficiency and thermal management of GPUs.
- BIt reduces the latency and bandwidth overhead of remote memory access between GPUs.
- CIt enables faster data transfers between GPUs and CPUs without involving the operating system.
- DIt allows multiple GPUs to share the same memory space without any synchronization.
Explanation
NVIDIA GPUDirect RDMA allows network adapters to directly access GPU memory, bypassing the CPU and operating system kernel. This accelerates data transfers between GPUs and CPUs (or other devices), reducing latency and CPU overhead in AI workflows, such as multi-node training. It doesn't focus on power efficiency or unsynchronized memory sharing, making faster transfers its key benefit.
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