LOW LATENCY MEMORY ACCESS FOR CPUS IN AUTONOMOUS VEHICLES

    公开(公告)号:US20250156327A1

    公开(公告)日:2025-05-15

    申请号:US18506399

    申请日:2023-11-10

    Inventor: ZHENWEI YU

    Abstract: In one embodiment, a system determines a plurality of memory controllers available at a central processing unit (CPU) chipset of an autonomous driving system (ADS) for an autonomous driving vehicle (ADV), the CPU chipset having a plurality of processing cores. The system partitions the plurality of memory controllers at the CPU chipset into N regions. The system determines a shared cache memory at the CPU chipset that is shared among the plurality of processing cores. The system partitions the shared cache memory into N segments according to the N regions. The system configures CPU chipset settings to associate each memory controller in the N regions to a segment of the shared cache memory in the respective region. Data and/or instruction sets are accessed by the CPU chipset from a memory controller through a segment of the cache memory that is associated to the memory controller.

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