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Recent #RDMA news in the semiconductor industry

weixin
9 months ago

AI Network Background: Why, What & How of RDMA

➀ The need for RDMA in high-performance computing, big data storage, and machine learning domains;

➁ Detailed introduction of RDMA network architecture, key components, and protocols;

➂ Explanation of the RDMA working mechanism, including software configuration and hardware design;

➃ Overview of RDMA technology protocols such as InfiniBand, iWARP, and RoCE;

➄ Future technological innovations and challenges for RDMA, including scalable RDMA controllers, efficient QP management, congestion control, network topology optimization, and security.

High-Performance ComputingRDMA
weixin
11 months ago

HotChip2024 Postscript: Why RDMA is Inappropriate for ScaleUP Networks

➀ Discusses the limitations of using RDMA in ScaleUP networks, highlighting issues with latency, CPU overload, and chip area constraints. ➁ Explores alternative protocols suitable for ScaleUP, emphasizing the benefits of Ethernet and direct memory access. ➂ Analyzes the challenges and solutions in implementing efficient interconnects for AI accelerators, focusing on network convergence and memory semantics.
AI acceleratorsRDMAScaleUP Networks
weixin
11 months ago

RDMA Technology in Large-Scale Model Training

➀ RDMA allows direct access to remote memory without kernel intervention, offering high throughput and low latency. ➁ RDMA protocols include InfiniBand, RoCE, and iWARP, each with unique advantages and deployment scenarios. ➂ Load balancing in large-scale networks is challenging due to the prevalence of large data flows, necessitating advanced techniques like PLB and SDN-based traffic engineering.
InfiniBandRDMARoCE