Papers › A Primer on RecoNIC: RDMA-enabled Compute Offloading on SmartNIC
A Primer on RecoNIC: RDMA-enabled Compute Offloading on SmartNIC
Guanwen Zhong, Aditya Kolekar, Burin Amornpaisannon, Inho Choi, Haris Javaid, Mario Baldi
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Today's data centers consist of thousands of network-connected hosts, each with CPUs and accelerators such as GPUs and FPGAs. These hosts also contain network interface cards (NICs), operating at speeds of 100Gb/s or higher, that are used to communicate with each other. We propose RecoNIC, an FPGA-based RDMA-enabled SmartNIC platform that is designed for compute acceleration while minimizing the overhead associated with data copies (in CPU-centric accelerator systems) by bringing network data as close to computation as possible. Since RDMA is the defacto transport-layer protocol for improved communication in data center workloads, RecoNIC includes an RDMA offload engine for high throughput and low latency data transfers. Developers have the flexibility to design their accelerators using RTL, HLS or Vitis Networking P4 within the RecoNIC's programmable compute blocks. These compute blocks can access host memory as well as memory in remote peers through the RDMA offload engine. Furthermore, the RDMA offload engine is shared by both the host and compute blocks, which makes RecoNIC a very flexible platform. Lastly, we have open-sourced RecoNIC for the research community to enable experimentation with RDMA-based applications and use-cases.
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