Li Auto

RDMANIC架构师

Li Auto  •  Onsite  •  3 hours ago
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Job Description

RDMANIC架构师
北京、上海、杭州、中国香港
全职
互联网 / 电子 / 网游 - 研发
职位描述
1、关注RDMA NIC、SmartNIC/DPU、RoCEv2、InfiniBand及GPU Direct通信技术,判断AI集群网络对吞吐、时延、扩展性和可靠性的演进需求;
2、定义NIC端到端产品架构,包括PCIe主机接口、DMA与地址转换、收发数据通路、队列与完成机制、RDMA传输、拥塞控制、虚拟化、安全隔离和可观测性;
3、建立面向训练、推理和存储负载的性能模型,量化带宽、时延、队列、缓存及PPA约束,识别跨主机、芯片和网络的系统瓶颈;
4、驱动架构规格和验证方案落地,协同ASIC、固件、驱动、操作系统及AI通信软件,完成前后仿真、芯片Bring up和规模化系统调优。
职位要求
1、网络适配器及RDMA协议架构能力:深入理解QP、MR、WQE、CQE、Doorbell和RDMAVerbs,掌握Read/Write/Send、Atomic、Ordering、ACK/Retry、丢包恢复以及PFC、ECN、DCQCN等流控与拥塞控制机
制;
2、主机互联、DMA与虚拟化能力:熟悉PCIe、DMA Engine、Descripptor、MSI-X、IOMMU、ATS/PASID和SR IOV,能够定义地址转换、内存保护、设备虚拟化、缓存与一致性边界及多租户隔离方案
3、芯片微架构与软硬件协同能力:能够划分TX/RX、队列管理、调度、缓存和内存访问等模块,完成性能、面积、功耗权衡;理解固件、Linux RDMA驱动及通信库边界,具备仿真建模和前后硅调试能力。
投递
Li Auto

About Li Auto

Founded on July. 1, 2015, Li Auto's brand mission is to "Be Proactive, Change the World".

We are dedicated to providing families with safer, more comfortable, and more convenient smart EVs through breakthrough innovations in products, technologies, and business models. By Oct. 18, 2024, Li Auto achieved the milestone of one million vehicle deliveries in just 58 months, setting a new record for the fastest one million deliveries in China's luxury car market.

We see cars evolving from transportation in the Industrial Age into spatial robots in the age of AI. And we fuse the physical and digital worlds through AI, turning limited car space into infinite experiences. Our goal isn't just to transform the automotive industry through cutting-edge AI technologies, but also bring the benefits of AI to every family.

Join us in pushing growth boundaries and realizing our vision of "To Become a World-Leading Embodied AI Enterprise."!

Industry
Automotive & Mobility
Company Size
1,001-5,000 employees
Headquarters
Beijing, CN
Year Founded
2015
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