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GPU Cloud

RDMA

RDMA (Remote Direct Memory Access) allows direct memory access between GPUs without CPU overhead.

Definition

Remote Direct Memory Access (RDMA) is a networking technology that allows direct memory-to-memory data transfers between computers without involving the operating system or CPU. In GPU clusters, RDMA enables GPUDirect RDMA — direct GPU-to-GPU data transfers across nodes, critical for distributed training. Harch Corp's GPU clusters use RDMA over InfiniBand (RDMA-IB) for maximum performance, reducing communication overhead by 10x compared to traditional TCP/IP networking.

Related Keywords

rdmagpudirect rdmardma over infinibandremote direct memory access

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