SetHeteroParam

APP_ERROR SetHeteroParam(size_t deviceCapacity, size_t deviceBuffer, size_t hostCapacity);

Sets heterogeneous storage policy parameters.

size_t deviceCapacity: database capacity (bytes) on the device when the heterogeneous memory policy is used.

size_t deviceBuffer: cache capacity (bytes) on the device when the heterogeneous memory policy is used.

size_t hostCapacity: database capacity (bytes) on the host when the heterogeneous memory policy is used.

N/A

APP_ERROR: return status. For details, see Return Code Reference.

• This API can be used only after the memory policy is set to MemoryStrategy::HETERO_MEMORY (heterogeneous memory policy) by calling Init.
• The minimum value of deviceCapacity is 1 GB, and the maximum value is the actual remaining memory size of the device.
• The minimum value of deviceBuffer is 2 × 262144 × dim and the maximum value is 8G. Set this parameter based on the actual remaining memory size on the device.
• The value of deviceCapacity + deviceBuffer must be smaller than the actual remaining memory size of the device.
• Value range of hostCapacity: [1 GB, 512 GB]. Set this parameter based on the actual memory size that can be allocated on the host.