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AI & Machine Learning · Advanced

GPUDirect RDMA

NVIDIA technology that lets network adapters read and write GPU memory directly, bypassing host memory and CPU.

Definition

GPUDirect RDMA cuts latency and CPU overhead for multi-node GPU communication. GPUDirect Storage similarly provides a direct path between storage and GPU memory.

Exam tip

GPUDirect RDMA removes the CPU and system memory from the GPU-to-network data path.

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