GRID OCCUPANCY MAPPING USING ERROR RANGE DISTRIBUTION

    公开(公告)号:US20200271787A1

    公开(公告)日:2020-08-27

    申请号:US16644118

    申请日:2017-10-03

    Abstract: A technology is described for mapping a physical environment. An example method may include receiving laser point data for laser light reflected from the physical environment and detected by a laser sensor. Points included in the laser point data can be correlated to grid cells in an environment map that represents the physical environment. Error ranges for the points correlated to the grid cells can be determined based in part on an error distribution. Occupation probabilities can then be calculated for the grid cells in the environment map using an interpolation technique and grid cell occupation probabilities for adjacent error grid cells selected based in part on the error ranges of the points, and the grid cells in the environment map can be updated with the occupation probabilities.

    SHARING VIRTUAL FUNCTIONS IN A SHARED VIRTUAL MEMORY BETWEEN HETEROGENEOUS PROCESSORS OF A COMPUTING PLATFORM
    4.
    发明申请
    SHARING VIRTUAL FUNCTIONS IN A SHARED VIRTUAL MEMORY BETWEEN HETEROGENEOUS PROCESSORS OF A COMPUTING PLATFORM 审中-公开
    在计算平台的异构处理器之间共享的虚拟内存中共享虚拟功能

    公开(公告)号:US20150113255A1

    公开(公告)日:2015-04-23

    申请号:US14569454

    申请日:2014-12-12

    Abstract: A computing platform may include heterogeneous processors (e.g., CPU and a GPU) to support sharing of virtual functions between such processors. In one embodiment, a CPU side vtable pointer used to access a shared object from the CPU 110 may be used to determine a GPU vtable if a GPU-side table exists. In another embodiment, a shared non-coherent region, which may not maintain data consistency, may be created within the shared virtual memory. The CPU and the GPU side data stored within the shared non-coherent region may have a same address as seen from the CPU and the GPU side. However, the contents of the CPU-side data may be different from that of GPU-side data as shared virtual memory may not maintain coherency during the run-time. In one embodiment, the vptr may be modified to point to the CPU vtable and GPU vtable stored in the shared virtual memory.

    Abstract translation: 计算平台可以包括异构处理器(例如,CPU和GPU),以支持这些处理器之间的虚拟功能的共享。 在一个实施例中,如果GPU侧表存在,则用于从CPU 110访问共享对象的CPU侧vtable指针可用于确定GPU vtable。 在另一个实施例中,可以在共享虚拟存储器内创建可能不维持数据一致性的共享非相干区域。 存储在共享非相干区域内的CP​​U和GPU侧数据可以具有与CPU和GPU侧所见相同的地址。 然而,CPU侧数据的内容可能与GPU侧数据的内容不同,因为共享虚拟存储器可能在运行期间不能维持一致性。 在一个实施例中,可以修改vptr以指向存储在共享虚拟存储器中的CPU vtable和GPU vtable。

    Multicore memory data recorder for kernel module

    公开(公告)号:US10649899B2

    公开(公告)日:2020-05-12

    申请号:US15505879

    申请日:2014-09-25

    Abstract: A processing device includes a processing core, coupled to a memory, to execute a task including a code segment identified as being monitored and a kernel recorder, coupled to the processing core via a core interface. The kernel recorder includes a first filter circuit to responsive to determining that the task being executed enters the code segment, set the kernel recorder to a first mode under which the kernel recorder is to record, in a first record, a plurality of memory addresses accessed by the code segment, and responsive to determining that the execution of the task exits the code segment, set the kernel recorder to a second mode under which the kernel recorder is to detect a write operation to a memory address recorded in the first record and record the memory address in a second record.

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