Struct GPUComputingConfig 

#[repr(C)]
pub struct GPUComputingConfig {
    pub backend: GPUComputingBackend,
    pub power: GPUPowerSettings,
    pub speed: GPUSpeedSettings,
    pub memory: GPUMemorySettings,
    pub gpu_index_in_backend_group: i64,
}

as config field you have to provide GPUComputingConfig which represent settings which you wanted

Fields

backend: GPUComputingBackend

set backend which you want

power: GPUPowerSettings

set power settings which meets your needs

speed: GPUSpeedSettings

set speed settings which matches your needs

memory: GPUMemorySettings

tell to gpu about your memory usage

gpu_index_in_backend_group: i64

Optional Setting : if you know index of your prefered gpu device in the list gpu devices with the same backend , you can set it , to API gets resources from that gpu and use it for computing task

get_computing_gpu_infos function can be used to get list of them 
free_gpu_devices_infos function must be used from C side of the program to deallocate 
recived gpu infos , in Rust RAII will take care of it 

if it sets to negative value , API will automatically choose the gpu device

Trait Implementations

impl Clone for GPUComputingConfig

fn clone(&self) -> GPUComputingConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GPUComputingConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.