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Showing content from https://docs.nvidia.com/cuda/cuda-driver-api/structCUaccessPolicyWindow__v1.html below:

CUDA Driver API :: CUDA Toolkit Documentation

7.1. CUaccessPolicyWindow_v1 Struct Reference [Data types used by CUDA driver]

Specifies an access policy for a window, a contiguous extent of memory beginning at base_ptr and ending at base_ptr + num_bytes. num_bytes is limited by CU_DEVICE_ATTRIBUTE_MAX_ACCESS_POLICY_WINDOW_SIZE. Partition into many segments and assign segments such that: sum of "hit segments" / window == approx. ratio. sum of "miss segments" / window == approx 1-ratio. Segments and ratio specifications are fitted to the capabilities of the architecture. Accesses in a hit segment apply the hitProp access policy. Accesses in a miss segment apply the missProp access policy.

void * base_ptr
CUaccessProperty hitProp
float  hitRatio
CUaccessProperty missProp
size_t  num_bytes

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