Function execute_with_fallback_timed 

pub fn execute_with_fallback_timed<T, GpuFn, CpuFn>(
    config: &FallbackConfig,
    gpu_op: GpuFn,
    cpu_op: CpuFn,
) -> GpuResult<FallbackResult<T>>
where
    T: Send + 'static,
    GpuFn: FnOnce() -> GpuResult<T> + Send + 'static,
    CpuFn: FnOnce() -> T,

Like execute_with_fallback, but additionally checks whether the GPU op takes longer than config.timeout_ms milliseconds. If the timeout fires before the GPU closure returns, cpu_op is called and ExecutionPath::Cpu is reported.

When config.timeout_ms is None this function behaves identically to execute_with_fallback.

Note

The GPU closure is executed on a background thread and its result is forwarded over a channel. A recv_timeout call on the receiving end implements the deadline. If the deadline fires the CPU closure is called on the calling thread; the background GPU thread continues to completion and its result is silently discarded.

The GPU closure must be Send + 'static so it can be moved into the background thread.