Struct FallbackConfig 

pub struct FallbackConfig {
    pub enabled: bool,
    pub trigger_on_device_lost: bool,
    pub trigger_on_no_backend: bool,
    pub timeout_ms: Option<u64>,
    pub log_on_fallback: bool,
}

Configuration that controls when and how CPU fallback is activated.

By default fallback is enabled and will trigger on GpuError::DeviceLost and on “no backend” adapter-not-found errors.

Fields

enabled: bool

Whether automatic CPU fallback is enabled at all.

When false, GPU errors are always propagated and cpu_op is never called.

trigger_on_device_lost: bool

Trigger fallback when the GPU error is GpuError::DeviceLost.

trigger_on_no_backend: bool

Trigger fallback when the GPU error indicates no adapter / no backend is available (e.g. GpuError::NoAdapter or GpuError::BackendNotAvailable).

timeout_ms: Option<u64>

If Some(ms), GPU operations that exceed this wall-clock duration will fall back to CPU. The timeout is implemented at the caller level via execute_with_fallback_timed; the free function execute_with_fallback ignores this field.

log_on_fallback: bool

Emit a diagnostic message to stderr when falling back to CPU.

Implementations

impl FallbackConfig

pub fn disabled() -> Self

Create a configuration with fallback disabled entirely.

GPU errors are always propagated; the CPU closure is never called.

pub fn with_logging(self) -> Self

Create a configuration with verbose logging enabled.

pub fn with_timeout(self, timeout_ms: u64) -> Self

Set an optional timeout in milliseconds.

pub fn should_fallback(&self, err: &GpuError) -> bool

Decide whether err should trigger a fallback to CPU.

Returns false whenever self.enabled == false, regardless of the error kind.

Trait Implementations

impl Clone for FallbackConfig

fn clone(&self) -> FallbackConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FallbackConfig

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

Formats the value using the given formatter.

impl Default for FallbackConfig

fn default() -> Self

Returns the “default value” for a type.