6.1. CUaccessPolicyWindow 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.
Public Variables
- void * base_ptr
- CUaccessProperty hitProp
- float hitRatio
- CUaccessProperty missProp
- size_t num_bytes
Variables
- void * CUaccessPolicyWindow::base_ptr [inherited]
-
Starting address of the access policy window. CUDA driver may align it.
- CUaccessPropertyCUaccessPolicyWindow::hitProp [inherited]
-
CUaccessProperty set for hit.
- float CUaccessPolicyWindow::hitRatio [inherited]
-
hitRatio specifies percentage of lines assigned hitProp, rest are assigned missProp.
- CUaccessPropertyCUaccessPolicyWindow::missProp [inherited]
-
CUaccessProperty set for miss. Must be either NORMAL or STREAMING
- size_t CUaccessPolicyWindow::num_bytes [inherited]
-
Size in bytes of the window policy. CUDA driver may restrict the maximum size and alignment.