//! Print every device the HAL discovers, with the capabilities it reports.
//!
//! Run it on the host whose fabric you want to see:
//!   cargo run --example devices --features rocm
fn main() {
    match jouleclaw_omni::hal::discover_devices() {
        Ok(devices) if devices.is_empty() => println!("no devices discovered"),
        Ok(devices) => {
            for d in &devices {
                println!("{:?} {:?}", d.device_type, d.name);
                println!(
                    "  memory   total {} MiB, available {} MiB, est {} GB/s",
                    d.memory.total / (1024 * 1024),
                    d.memory.available / (1024 * 1024),
                    d.memory.bandwidth_gbps
                );
                let c = &d.capabilities;
                println!(
                    "  compute  {} units, {} threads/unit, warp {}, shared/block {} KiB",
                    c.compute_units, c.max_threads_per_unit, c.warp_size,
                    c.max_shared_memory / 1024
                );
                println!(
                    "  types    f16 {} bf16 {} f8 {} int8 {}, matrix {:?}",
                    c.supports_f16, c.supports_bf16, c.supports_f8, c.supports_int8, c.matrix_unit
                );
            }
        }
        Err(e) => println!("discovery failed: {e}"),
    }
}